The effect of methylation on the excited state dynamics of aminouracils (813 views)
J Photochem Photobiol A Chem (ISSN: 1010-6030), 2012 Apr 15; 234: 37-43.
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Paper type: Journal Article,
Impact factor: 2.416, 5-year impact factor: 2.691
Url: http://www.scopus.com/inward/record.url?eid=2-s2.0-84859538922&partnerID=40&md5=898683f4b373b5ad4d870d0e959a0cd9
Keywords: Dna, Excited State, Femtosecond, Fluorescence Upconversion, Nucleobases, Td-Dft, Time-Resolved Fluorescence,
Affiliations:
*** IBB - CNR ***
CNRS, IRAMIS, URA 2453, 91191 Gif-sur-Yvette, France
Istituto Biostrutture e Bioimmagini, CNR, Via Mezzocannone 16, I-80134 Napoli, Italy
References:
Not available.
J Photochem Photobiol A Chem (ISSN: 1010-6030), 2012 Apr 15; 234: 37-43.
Export to BibTeX Export to EndNote
Paper type: Journal Article,
Impact factor: 2.416, 5-year impact factor: 2.691
Url: http://www.scopus.com/inward/record.url?eid=2-s2.0-84859538922&partnerID=40&md5=898683f4b373b5ad4d870d0e959a0cd9
Keywords: Dna, Excited State, Femtosecond, Fluorescence Upconversion, Nucleobases, Td-Dft, Time-Resolved Fluorescence,
Affiliations:
*** IBB - CNR ***
CNRS, IRAMIS, URA 2453, 91191 Gif-sur-Yvette, France
Istituto Biostrutture e Bioimmagini, CNR, Via Mezzocannone 16, I-80134 Napoli, Italy
References:
Not available.
The effect of methylation on the excited state dynamics of aminouracils
The excited state properties of two amino substituted uracils, 5-aminouracil (5AU) and 5-dimethylaminouracil (5DMAU) have been studied by steady-state and time-resolved fluorescence spectroscopy. In addition, the electronic transitions corresponding to photon absorption and emission were calculated using the TD-DFT/PCM method (with PBE0 and CAM-B3LYP functionals), explicitly including water molecules of the first solvent shell. The fluorescence decays, recorded by fluorescence upconversion, reveal that the emitting states of both molecules are substantially longer-lived than that of uracil. However, while the 5AU fluorescence decays on a picosecond timescale, the 5DMAU fluorescence contains a weak, long-lived component, continuing beyond 100 ps. Calculations show that the excited state deactivation of 5AU is governed by the existence of a minimum on the ππ* excited state potential energy surface. For 5DMAU, on the other hand, a very long-lived but weakly fluorescent intramolecular charge transfer (ICT) state, involving a significant charge transfer between the dimethylamino group and the pyrimidine ring, is found. This stable ICT state is characterized by a rotation of the dimethylamino group towards a quasi-perpendicular geometry. © 2012 Elsevier B.V. All rights reserved.
The excited state properties of two amino substituted uracils, 5-aminouracil (5AU) and 5-dimethylaminouracil (5DMAU) have been studied by steady-state and time-resolved fluorescence spectroscopy. In addition, the electronic transitions corresponding to photon absorption and emission were calculated using the TD-DFT/PCM method (with PBE0 and CAM-B3LYP functionals), explicitly including water molecules of the first solvent shell. The fluorescence decays, recorded by fluorescence upconversion, reveal that the emitting states of both molecules are substantially longer-lived than that of uracil. However, while the 5AU fluorescence decays on a picosecond timescale, the 5DMAU fluorescence contains a weak, long-lived component, continuing beyond 100 ps. Calculations show that the excited state deactivation of 5AU is governed by the existence of a minimum on the ππ* excited state potential energy surface. For 5DMAU, on the other hand, a very long-lived but weakly fluorescent intramolecular charge transfer (ICT) state, involving a significant charge transfer between the dimethylamino group and the pyrimidine ring, is found. This stable ICT state is characterized by a rotation of the dimethylamino group towards a quasi-perpendicular geometry. © 2012 Elsevier B.V. All rights reserved.
The effect of methylation on the excited state dynamics of aminouracils
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The effect of methylation on the excited state dynamics of aminouracils
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Staiano M, Saviano M, Herman P, Grycznyski Z, Fini C, Varriale A, Parracino A, Kold AB, Rossi M, D'Auria S
* Time-resolved fluorescence spectroscopy and molecular dynamics simulations point out the effects of pressure on the stability and dynamics of the porcine odorant-binding protein (1295 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2008; 89(4): 284-291.
Impact Factor: 2.823
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Santoro F, Barone V, Benzi C, Improta R
* Excited state properties of sizable molecules in solution: From structure to reactivity (649 views)
Theor Chem Acc (ISSN: 1432-881x), 2007 May; 117(5-6): 1073-1084.
Impact Factor: 2.537
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Santoro F, Gustavsson T, Lami S, Barone V, Improta R
* Towards the understanding of the excited state dynamics of nucleic acids: Solvent and stacking effect on the photophysical behavior of nucleobases (738 views)
Aip Conf Proc (ISSN: 0094-243x), 2007; 963(2): 631-634.
Impact Factor: 0
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Santoro F, Barone V, Gustavsson T, Improta R
* Solvent effect on the singlet excited-state lifetimes of nucleic acid bases: A computational study of 5-fluorouracil and uracil in acetonitrile and water (1602 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2006 Dec 20; 128(50): 16312-16322.
Impact Factor: 7.696
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Gustavsson T, Sarkar N, Lazzarotto E, Markovitsi D, Improta R
* Singlet excited state dynamics of uracil and thymine derivatives: A femtosecond fluorescence upconversion study in acetonitrile (472 views)
Chem Phys Lett (ISSN: 0009-2614), 2006 Oct 5; 429(4-6): 551-557.
Impact Factor: 2.462
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Improta R, Barone V, Scalmani G, Frisch MJ
* A state-specific polarizable continuum model time dependent density functional theory method for excited state calculations in solution (695 views)
J Chem Phys (ISSN: 0021-9606, 0897-690online), 2006 Sep 7; 125(5): N/D-N/D.
Impact Factor: 3.166
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Nuernberger P, Vogt G, Gerber G, Improta R, Santoro F
* Femtosecond study on the isomerization dynamics of NK88. I. Ground-state dynamics after photoexcitation (727 views)
J Chem Phys (ISSN: 0021-9606, 0021-9606print, 0897-690online), 2006 Jul 28; 125(4): 44512-44544.
Impact Factor: 3.247
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Vogt G, Nuernberger P, Gerber G, Improta R, Santoro F, Nuernberger P, Vogt G, Gerber G, Improta R, Santoro F
* Femtosecond study on the isomerization dynamics of NK88. II. Excited-state dynamics (573 views)
J Chem Phys (ISSN: 0021-9606, 0897-690online), 2006 Jul 28; 125(4): 44512-44512.
Impact Factor: 3.166
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Gustavsson T, Sarkar N, Lazzarotto E, Markovitsi D, Barone V, Improta R
* Solvent effect on the singlet excited-state dynamics of 5-fluorouracil in acetonitrile as compared with water (560 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2006 Jul 6; 110(26): 12843-12847.
Impact Factor: 4.115
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Gustavsson T, Lazzarotto E, Markovitsi D, Banyasz AA, Improta R, Scalmani G
* A combined femtosecond fluorescence and TD-DFT study of uracil derivatives in aqueous solution (666 views)
Femtochemistry Vii Elsevier (ISSN: 9780-4445), 2006; N/D: 254-257.
Impact Factor: 0
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Improta R, Barone V, Scalmani G, Frisch MJ
* A State-Specific Pcm Td-Dft Method For Equilibrium And Non-Equilibrium Excited State Calculations In Solution (667 views)
J Chem Phys (ISSN: 0897-690online, 0021-9606printed), 2006; 125(5): 54103-54103.
Impact Factor: 3.093
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* Dancing with Nucleobases: Unveiling the Self-Assembly Properties of DNA and RNA Base-Containing Molecules for Gel Formation (376 views)
Gels, 2023 Dec 23; 10: 16-16.
Impact Factor: 4.6
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Ciaco S, Gavvala K, Greiner V, Mazzoleni V, Didier P, Ruff M, Martinez-fernandez L, Improta R, Mély Y
* Thienoguanosine brightness in DNA duplexes is governed by the localization of itsππ* excitation in the lowest energy absorption band (441 views)
Methods Appl Fluoresc (ISSN: 2050-6120linking), 2022 May 5; 10(3): N/D-N/D.
Impact Factor: 2.79
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Fedotov DA, Paul AC, Koch H, Santoro F, Coriani S, Improta R
* Excited state absorption of DNA bases in the gas phase and in chloroform solution: a comparative quantum mechanical study (243 views)
Phys Chem Chem Phys (ISSN: 1463-9076linking, 1463-9084electronic), 2022 Feb 23; 24(8): 4987-5000.
Impact Factor: 3.676
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Lizondo-aranda P, Martínez-fernández L, Miranda MA, Improta R, Gustavsson T, Lhiaubet-vallet V
* The Excited State Dynamics of a Mutagenic Cytidine Etheno Adduct Investigated by Combining Time-Resolved Spectroscopy and Quantum Mechanical Calculations (287 views)
J Phys Chem Lett (ISSN: 1948-7185linking, 1948-7185electronic), 2022 Jan 13; 13(1): 251-257.
Impact Factor: 6.475
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Baptista FA, Krizsan D, Stitch M, Sazanovich IV, Clark IP, Towrie M, Long C, Martinez-fernandez L, Improta R, Kane-maguire NAP, Kelly JM, Quinn SJ
* Adenine Radical Cation Formation by a Ligand-Centered Excited State of an Intercalated Chromium Polypyridyl Complex Leads to Enhanced DNA Photo-oxidation (272 views)
J Am Chem Soc (ISSN: 0002-7863linking, 0002-7863print), 2021 Sep 15; 143(36): 14766-14779.
Impact Factor: 15.419
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Balanikas E, Martinez-fernandez L, Improta R, Podbevšek P, Baldacchino G, Markovitsi D
* The Structural Duality of Nucleobases in Guanine Quadruplexes Controls Their Low-Energy Photoionization (333 views)
J Phys Chem Lett (ISSN: 1948-7185linking, 1948-7185electronic), 2021 Sep 2; 12(34): 8309-8313.
Impact Factor: 6.475
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Wang X, Martínez-fernández L, Zhang Y, Zhang K, Improta R, Kohler B, Xu J, Chen J
* Solvent-Dependent Stabilization of a Charge Transfer State is the Key to Ultrafast Triplet State Formation in an Epigenetic DNA Nucleoside (309 views)
Chemistry (ISSN: 0947-6539linking, 1521-3765electronic), 2021 Jul 26; 27(42): 10932-10940.
Impact Factor: 5.236
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Scognamiglio PL, Platella C, Napolitano E, Musumeci D, Roviello GN
* From Prebiotic Chemistry to Supramolecular Biomedical Materials: Exploring the Properties of Self-Assembling Nucleobase-Containing Peptides (301 views)
Molecules (ISSN: 1420-3049linking, 1420-3049electronic), 2021 Jun 10; 26(12): 3558-3558.
Impact Factor: 4.411
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Green JA, Jouybari MY, Aranda D, Improta R, Santoro F
* Nonadiabatic Absorption Spectra and Ultrafast Dynamics of DNA and RNA Photoexcited Nucleobases (247 views)
Molecules (ISSN: 1420-3049linking, 1420-3049electronic), 2021 Mar 20; 26(6): N/D-N/D.
Impact Factor: 4.411
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Yaghoubi Jouybari M, Liu Y, Improta R, Santoro F
* Ultrafast Dynamics of the Two Lowest Bright Excited States of Cytosine and 1-Methylcytosine: A Quantum Dynamical Study (268 views)
J Chem Theory Comput (ISSN: 1549-9618linking, 1549-9626electronic), 2020 Sep 8; 16(9): 5792-5808.
Impact Factor: 5.313
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Martinez-fernandez L, Gustavsson T, Diederichsen U, Improta R
* Excited State Dynamics of 8-Vinyldeoxyguanosine In Aqueous Solution Studied by Time-Resolved Fluorescence Spectroscopy and Quantum Mechanical Calculations (296 views)
Molecules (ISSN: 1420-3049linking, 1420-3049electronic), 2020 Feb 13; 25(4): N/D-N/D.
Impact Factor: 3.267
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Avitabile C, Diaferia C, Roviello V, Altamura D, Giannini C, Vitagliano L, Accardo A, Romanelli A
* Fluorescence and Morphology of Self-Assembled Nucleobases and Their Diphenylalanine Hybrid Aggregates (486 views)
Chemistry (ISSN: 0947-6539linking, 1521-3765electronic), 2019 Nov 22; 25(65): 14850-14857.
Impact Factor: 5.476
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Martinez-fernandez L, Changenet P, Banyasz A, Gustavsson T, Markovitsi D, Improta R
* Comprehensive Study of Guanine Excited State Relaxation and Photoreactivity in G-quadruplexes (248 views)
J Phys Chem Lett (ISSN: 1948-7185linking, 1948-7185electronic), 2019 Nov 7; 10(21): 6873-6877.
Impact Factor: 6.687
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Schmid M, Martinez-fernandez L, Markovitsi D, Santoro F, Hache F, Improta R, Changenet P
* Unveiling Excited-State Chirality of Binaphthols by Femtosecond Circular Dichroism and Quantum Chemical Calculations (821 views)
J Phys Chem Lett (ISSN: 1948-7185linking, 1948-7185electronic), 2019 Jul 18; 10(14): 4089-4094.
Impact Factor: 6.687
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Martinez-fernandez L, Gavvala K, Sharma R, Didier P, Richert L, Segarra Marti J, Mori M, Mely Y, Improta R
* Excited-State Dynamics of Thienoguanosine, an Isomorphic Highly Fluorescent Analogue of Guanosine (448 views)
Chemistry (ISSN: 0947-6539linking, 1521-3765electronic), 2019 May 28; 25(30): 7375-7386.
Impact Factor: 5.16
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Conti I, Martinez-fernandez L, Esposito L, Hofinger S, Nenov A, Garavelli M, Improta R
* Multiple Electronic and Structural Factors Control Cyclobutane Pyrimidine Dimer and 6-4 Thymine-Thymine Photodimerization in a DNA Duplex (1581 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2017 Oct 26; 23(60): 15177-15188.
Impact Factor: 5.16
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Martinez-fernandez L, Pepino AJ, Segarra-marti J, Jovaisaite J, Vaya I, Nenov A, Markovitsi D, Gustavsson T, Banyasz A, Garavelli M, Improta R
* Photophysics of Deoxycytidine and 5-Methyldeoxycytidine in Solution: A Comprehensive Picture by Quantum Mechanical Calculations and Femtosecond Fluorescence Spectroscopy (648 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 0002-7863print), 2017 Jun 14; 139(23): 7780-7791.
Impact Factor: 14.357
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Pepino AJ, Segarra-marti J, Nenov A, Improta R, Garavelli M
* Resolving Ultrafast Photoinduced Deactivations in Water-Solvated Pyrimidine Nucleosides (543 views)
J Phys Chem Lett (ISSN: 1948-7185, 1948-7185electronic, 1948-7185linking), 2017 Apr 20; 8(8): 1777-1783.
Impact Factor: 8.709
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Martinez-fernandez L, Zhang Y, De La Harpe K, Beckstead AA, Kohler B, Improta R
* Photoinduced long-lived charge transfer excited states in AT-DNA strands (392 views)
Phys Chem Chem Phys (ISSN: 1463-9076, 1463-3907, 1463-9084electronic), 2016 Aug 21; 18(31): 21241-21245.
Impact Factor: 4.123
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Banyasz A, Martinez-fernandez L, Ketola TM, Munoz-losa A, Esposito L, Markovitsi D, Improta R
* Excited State Pathways Leading to Formation of Adenine Dimers (460 views)
J Phys Chem Lett (ISSN: 1948-7185, 1948-7185electronic, 1948-7185linking), 2016 Jun 2; 7(11): 2020-2023.
Impact Factor: 9.353
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Roviello GN, Musumeci D
* Synthetic approaches to nucleopeptides containing all the four nucleobases, and nucleic acid-binding studies on a mixed-sequence nucleo-oligolysine (884 views)
Rsc Adv (ISSN: 2046-2069, 2046-2069electronic), 2016 Jun; 6: 63578-63585.
Impact Factor: 3.108
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Zhang Y, De La Harpe K, Beckstead AA, Martínez-fernández L, Improta R, Kohler B
* Excited-State Dynamics of DNA Duplexes with Different H-Bonding Motifs (746 views)
J Phys Chem Lett (ISSN: 1948-7185, 1948-7185electronic, 1948-7185linking), 2016; 7(6): 950-954.
Impact Factor: 9.353
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Improta R, Santoro F, Blancafort L
* Quantum Mechanical Studies on the Photophysics and the Photochemistry of Nucleic Acids and Nucleobases (1996 views)
Chem Rev (ISSN: 0009-2665), 2016; 116(6): 3540-3593.
Impact Factor: 47.928
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Roviello GN, Vicidomini C, Di Gaetano S, Capasso D, Musumeci D, Roviello V
* Solid phase synthesis and RNA-binding activity of an arginine-containing nucleopeptide (845 views)
Rsc Adv (ISSN: 2046-2069, 2046-2069electronic), 2016; 6(17): 14140-14148.
Impact Factor: 3.108
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Zhang Y, de La Harpe K, Beckstead AA, Improta R, Kohler B
* UV-Induced Proton Transfer between DNA Strands (844 views) (PDF 299 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 0002-7863print), 2015 Jun 10; 137(22): 7059-7062.
Impact Factor: 13.038
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Muñoz-Losa A, Markovitsi D, Improta R
* A State-Specific PCM-DFT method to include dynamic solvent effects in the calculation of ionization energies: Application to DNA bases (449 views)
Chem Phys Lett (ISSN: 0009-2614), 2015; 634: 20-24.
Impact Factor: 1.86
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Improta R, Barone V
* Excited States behavior of nucleobases in solution: insights from computational studies (794 views)
Top Curr Chem (ISSN: 0340-1022), 2015; 355: 329-357.
Impact Factor: 4.014
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Carbonniere P, Pouchan C, Improta R
* Intramolecular vibrational redistribution in the non-radiative excited state decay of uracil in the gas phase: An ab initio molecular dynamics study (645 views)
Phys Chem Chem Phys (ISSN: 1463-9076, 1463-3907, 1463-9084electronic), 2015; 17(17): 11615-11626.
Impact Factor: 4.449
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Zhang Y, Dood J, Beckstead AA, Li X-B, Nguyen KV, Burrows CJ, Improta R, Kohler B
* Photoinduced Electron Transfer in DNA: Charge Shift Dynamics between 8-Oxo-Guanine Anion and Adenine (1482 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207linking), 2015; 119(24): 7491-7502.
Impact Factor: 3.187
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Changenet-Barret P, Gustavsson T, Improta R, Markovitsi D
* Ultrafast Excited-State Deactivation of 8-Hydroxy-2′-deoxyguanosine Studied by Femtosecond Fluorescence Spectroscopy and Quantum-Chemical Calculations (1209 views)
J Phys Chem A (ISSN: 1089-5639, 1520-5215electronic, 1089-5639linking), 2015; 119(23): 6131-6139.
Impact Factor: 2.883
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Esposito L, Banyasz A, Douki T, Perron M, Markovitsi D, Improta R
* Effect of C5-methylation of cytosine on the photoreactivity of DNA: A joint experimental and computational study of TCG trinucleotides (754 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 0002-7863print), 2014 Sep 6; 136(31): 10838-10841.
Impact Factor: 12.113
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Improta R
* Quantum mechanical calculations unveil the structure and properties of the absorbing and emitting excited electronic states of guanine quadruplex (1089 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2014 Jun 23; 20(26): 8106-8115.
Impact Factor: 5.731
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Santoro F, Improta R, Fahleson T, Kauczor J, Norman P, Coriani S
* Relative stability of the La and Lb excited states in adenine and guanine: Direct evidence from TD-DFT calculations of MCD spectra (696 views)
J Phys Chem Lett (ISSN: 1948-7185, 1948-7185electronic, 1948-7185linking), 2014 Jun 5; 5(11): 1806-1811.
Impact Factor: 7.458
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Zhang Y, Improta R, Kohler B
Mode-specific vibrational relaxation of photoexcited guanosine 5'-monophosphate and its acid form: a femtosecond broadband mid-IR transient absorption and theoretical study (595 views)
Phys Chem Chem Phys (ISSN: 1463-9076, 1463-3907, 1463-9084electronic), 2014 Jan 28; 16(4): 1487-1499.
Impact Factor: 4.493
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Banyasz A, Gustavsson T, Onidas D, Changenet-Barret P, Markovitsi D, Improta R
* Multi-pathway excited state relaxation of adenine oligomers in aqueous solution: A joint theoretical and experimental study (847 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2013 Mar; 19(11): 3762-3774.
Impact Factor: 5.696
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Gustavsson T, Sarkar S, Vaya I, Jimenez MC, Markovitsi D, Improta R
* A joint experimental/theoretical study of the ultrafast excited state deactivation of deoxyadenosine and 9-methyladenine in water and acetonitrile (618 views)
Photochem Photobiol Sci (ISSN: 1474-905x), 2013; 12(8): 1375-1386.
Impact Factor: 2.939
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Improta R
* Photophysics and photochemistry of thymine deoxy-dinucleotide in water: A PCM/TD-DFT quantum mechanical study (620 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2012 Dec 13; 116(49): 14261-14274.
Impact Factor: 3.607
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Banyasz A, Douki T, Improta R, Gustavsson T, Onidas D, Vaya I, Perron M, Markovitsi D
* Electronic excited states responsible for dimer formation upon UV absorption directly by thymine strands: Joint experimental and theoretical study (762 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2012 Sep 12; 134(36): 14834-14845.
Impact Factor: 10.677
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Hua Y, Changenet-Barret P, Improta R, Vaya I, Gustavsson T, Kotlyar AB, Zikich D, Sket P, Plavec J, Markovitsi D
* Cation effect on the electronic excited states of guanine nanostructures studied by time-resolved fluorescence spectroscopy (782 views)
J Phys Chem C (ISSN: 1932-7447), 2012 Jul 12; 116(27): 14682-14689.
Impact Factor: 4.814
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Weigel A, Pfaffe M, Sajadi M, Mahrwald R, Improta R, Barone V, Polli D, Cerullo G, Ernsting NP, Santoro F
* Barrierless photoisomerisation of the "simplest cyanine": Joining computational and femtosecond optical spectroscopies to trace the full reaction path (519 views)
Phys Chem Chem Phys (ISSN: 1463-9076, 1463-3907, 1463-9084electronic), 2012; 14(38): 13350-13364.
Impact Factor: 3.829
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Biemann L, Kovalenko SA, Kleinermanns K, Mahrwald R, Markert M, Improta R
* Excited state proton transfer is not involved in the ultrafast deactivation of Guanine-cytosine pair in solution (810 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2011 Dec 14; 133(49): 19664-19667.
Impact Factor: 9.907
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Improta R, Barone V
* Interplay between "neutral" and "charge-transfer" excimers rules the excited state decay in adenine-rich polynucleotides (1053 views)
Angew Chem Int Ed (ISSN: 1433-7851, 1521-3773electronic, 1433-7851linking), 2011 Dec 9; 50(50): 12016-12019.
Impact Factor: 13.455
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Picconi D, Barone V, Lami A, Santoro F, Improta R
* The Interplay between ππ*/nπ* excited states in gas-phase thymine: A quantum dynamical study (558 views)
Chemphyschem (ISSN: 1439-4235, 1439-7641, 1439-7641electronic), 2011 Jul 11; 12(10): 1957-1968.
Impact Factor: 3.412
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Gustavsson T, Banyasz A, Improta R, Markovitsi D
* Femtosecond fluorescence studies of DNA/RNA constituents (380 views)
J Phys Conf Ser (ISSN: 1742-6588), 2011; 261(1): 13-13.
Impact Factor: 0.895
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Banyasz A, Karpati S, Mercier Y, Reguero M, Gustavsson T, Markovitsi D, Improta R
* The peculiar spectral properties of amino-substituted uracils: A combined theoretical and experimental study (672 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2010 Oct 7; 114(39): 12708-12719.
Impact Factor: 3.603
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Changenet-Barret P, Emanuele E, Gustavsson T, Improta R, Kotlyar AB, Markovitsi D, Vaya I, Zakrzewska K, Zikich D
* Optical properties of guanine nanowires: Experimental and theoretical study (560 views)
J Phys Chem C (ISSN: 1932-7447), 2010 Sep 2; 114(34): 14339-14346.
Impact Factor: 4.524
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Gustavsson T, Improta R, Markovitsi D
DNA/RNA: Building blocks of life under UV irradiation (536 views)
J Phys Chem Lett (ISSN: 1948-7185, 1948-7185electronic, 1948-7185linking), 2010 Jul 1; 1(13): 2025-2030.
Impact Factor: 6.687
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Improta R, Santoro F, Barone V, Lami A
* Vibronic model for the quantum dynamical study of the competition between bright and charge-transfer excited states in single-strand polynucleotides: the adenine dimer case (499 views)
J Phys Chem A (ISSN: 1089-5639, 1520-5215electronic, 1089-5639linking), 2009 Dec 31; 113(52): 15346-15354.
Impact Factor: 2.899
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Improta R, Barone V
* PCM/TD-DFT study of the two lowest excited states of uracil derivatives in solution: The effect of the functional and of the cavity model (538 views)
J Mol Struct Theochem (ISSN: 0166-1280), 2009 Nov 30; 914(1-3): 87-93.
Impact Factor: 1.216
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Angeli C, Improta R, Santoro F
* On the controversial nature of the 1 B-1(u) and 2 B-1(u) states of trans-stilbene: The n-electron valence state perturbation theory approach (590 views)
J Chem Phys (ISSN: 0021-9606, 0897-690online, 0021-9606printed), 2009 May 7; 130(17): N/D-N/D.
Impact Factor: 3.093
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Karunakaran V, Kleinermanns K, Improta R, Kovalenko SA
* Photoinduced dynamics of guanosine monophosphate in water from broad-band transient absorption spectroscopy and quantum-chemical calculations (535 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2009; 131(16): 5839-5850.
Impact Factor: 8.58
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Santoro F, Barone V, Improta R
* The Excited States Decay Of The A-T Dna: A Pcm/Td-Dft Study In Aqueous Solution Of The (9-Methyl-Adenine) 2 (1-Methyl-Thymine) 2 Stacked Tetramer (575 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2009; 131(42): 15232-15245.
Impact Factor: 8.58
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Mercier Y, Santoro F, Reguero M, Improta R
* The decay from the dark nπ* excited state in uracil: An integrated CASPT2/CASSCF and PCM/TD-DFT study in the gas phase and in water (580 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2008 Sep 4; 112(35): 10769-10772.
Impact Factor: 4.189
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Banyasz A, Gustavsson T, Keszei E, Improta R, Markovitsi D
* Effect of amino substitution on the excited state dynamics of uracil (610 views)
Photochem Photobiol Sci (ISSN: 1474-905x), 2008 Jul; 7(7): 765-768.
Impact Factor: 2.144
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Improta R, Barone V
The excited states of adenine and thymine nucleoside and nucleotide in aqueous solution: A comparative study by time-dependent DFT calculations (598 views)
Theor Chem Acc (ISSN: 1432-881x), 2008 Jul; 120(4-6): 491-497.
Impact Factor: 2.37
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Gustavsson T, Bányász A, Sarkar N, Markovitsi D, Improta R
* Assessing solvent effects on the singlet excited state lifetime of uracil derivatives: A femtosecond fluorescence upconversion study in alcohols and D2O (560 views)
Chem Phys (ISSN: 0301-0104), 2008 Jun 23; 350(1-3): 186-192.
Impact Factor: 1.961
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Gustavsson T, Banyasz A, Sarkar N, Markovitsi D, Improta R
* Statin: New life for an old drug (835 views)
Pharmacol Res Academic Press, 2008 Jun 23; 350(1-3): 1-2.
Impact Factor: 3.976
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Santoro F, Barone V, Improta R
* Can TD-DFT calculations accurately describe the excited states behavior of stacked nucleobases? The cytosine dimer as a test case (544 views)
J Comput Chem (ISSN: 0192-8651, 1096-987xelectronic, 0192-8651linking), 2008 Apr 30; 29(6): 957-964.
Impact Factor: 3.39
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Improta R
The Excited States Of Pi-Stacked 9-Methyl Adenine Oligomers: A Td-Dft Study In Aqueous Solution (330 views)
Physical Chemistry Chemical Physics, 2008; 10: 2656-2664.
Impact Factor: 2.028
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Staiano M, Saviano M, Herman P, Grycznyski Z, Fini C, Varriale A, Parracino A, Kold AB, Rossi M, D'Auria S
* Time-resolved fluorescence spectroscopy and molecular dynamics simulations point out the effects of pressure on the stability and dynamics of the porcine odorant-binding protein (1295 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2008; 89(4): 284-291.
Impact Factor: 2.823
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Santoro F, Barone V, Benzi C, Improta R
* Excited state properties of sizable molecules in solution: From structure to reactivity (649 views)
Theor Chem Acc (ISSN: 1432-881x), 2007 May; 117(5-6): 1073-1084.
Impact Factor: 2.537
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Santoro F, Gustavsson T, Lami S, Barone V, Improta R
* Towards the understanding of the excited state dynamics of nucleic acids: Solvent and stacking effect on the photophysical behavior of nucleobases (738 views)
Aip Conf Proc (ISSN: 0094-243x), 2007; 963(2): 631-634.
Impact Factor: 0
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Santoro F, Barone V, Gustavsson T, Improta R
* Solvent effect on the singlet excited-state lifetimes of nucleic acid bases: A computational study of 5-fluorouracil and uracil in acetonitrile and water (1602 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2006 Dec 20; 128(50): 16312-16322.
Impact Factor: 7.696
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Gustavsson T, Sarkar N, Lazzarotto E, Markovitsi D, Improta R
* Singlet excited state dynamics of uracil and thymine derivatives: A femtosecond fluorescence upconversion study in acetonitrile (472 views)
Chem Phys Lett (ISSN: 0009-2614), 2006 Oct 5; 429(4-6): 551-557.
Impact Factor: 2.462
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Improta R, Barone V, Scalmani G, Frisch MJ
* A state-specific polarizable continuum model time dependent density functional theory method for excited state calculations in solution (695 views)
J Chem Phys (ISSN: 0021-9606, 0897-690online), 2006 Sep 7; 125(5): N/D-N/D.
Impact Factor: 3.166
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Nuernberger P, Vogt G, Gerber G, Improta R, Santoro F
* Femtosecond study on the isomerization dynamics of NK88. I. Ground-state dynamics after photoexcitation (727 views)
J Chem Phys (ISSN: 0021-9606, 0021-9606print, 0897-690online), 2006 Jul 28; 125(4): 44512-44544.
Impact Factor: 3.247
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Vogt G, Nuernberger P, Gerber G, Improta R, Santoro F, Nuernberger P, Vogt G, Gerber G, Improta R, Santoro F
* Femtosecond study on the isomerization dynamics of NK88. II. Excited-state dynamics (573 views)
J Chem Phys (ISSN: 0021-9606, 0897-690online), 2006 Jul 28; 125(4): 44512-44512.
Impact Factor: 3.166
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Gustavsson T, Sarkar N, Lazzarotto E, Markovitsi D, Barone V, Improta R
* Solvent effect on the singlet excited-state dynamics of 5-fluorouracil in acetonitrile as compared with water (560 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2006 Jul 6; 110(26): 12843-12847.
Impact Factor: 4.115
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Gustavsson T, Lazzarotto E, Markovitsi D, Banyasz AA, Improta R, Scalmani G
* A combined femtosecond fluorescence and TD-DFT study of uracil derivatives in aqueous solution (666 views)
Femtochemistry Vii Elsevier (ISSN: 9780-4445), 2006; N/D: 254-257.
Impact Factor: 0
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Improta R, Barone V, Scalmani G, Frisch MJ
* A State-Specific Pcm Td-Dft Method For Equilibrium And Non-Equilibrium Excited State Calculations In Solution (667 views)
J Chem Phys (ISSN: 0897-690online, 0021-9606printed), 2006; 125(5): 54103-54103.
Impact Factor: 3.093
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70 Records (65 excluding Abstracts).
Total impact factor: 401.284 (387.717 excluding Abstracts).
Total 5 year impact factor: 398.96 (385.183 excluding Abstracts).
Total impact factor: 401.284 (387.717 excluding Abstracts).
Total 5 year impact factor: 398.96 (385.183 excluding Abstracts).
813 views. Last view on Saturday 26 April 2025, 17:29:19
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