Assessing solvent effects on the singlet excited state lifetime of uracil derivatives: A femtosecond fluorescence upconversion study in alcohols and D2O (288 views)
Chem Phys (ISSN: 0301-0104), 2008 Jun 23; 350(1-3): 186-192.
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Paper type: Journal Article,
Impact factor: 1.961, 5-year impact factor: 1.914
Url: http://www.scopus.com/inward/record.url?eid=2-s2.0-44749089311&partnerID=40&md5=e8a3626fabbe6f8fe26262b084a8f751
Keywords: Conical Intersection, Dna, Excited States, Femtosecond, Fluorescence Upconversion, Nucleobases, Pyrimidines, Solvent Effect, Thymine, Uracil,
Affiliations:
*** IBB - CNR ***
Laboratoire Francis Perrin, CEA/DSM/DRECAM/SPAM - CNRS URA 2453, CEA/Saclay, F-91191 Gif-sur-Yvette, France
Department of Chemistry, Indian Institute of Technology, Kharagpur, 721 302 WB, India
Dipartimento di Chimica, Universita Federico II, Complesso Universitario Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
Istituto Biostrutture e Bioimmagini, CNR, V. Mezzocannone 6, 80134 Napoli, Italy
References:
Not available.
Chem Phys (ISSN: 0301-0104), 2008 Jun 23; 350(1-3): 186-192.
Export to BibTeX Export to EndNote
Paper type: Journal Article,
Impact factor: 1.961, 5-year impact factor: 1.914
Url: http://www.scopus.com/inward/record.url?eid=2-s2.0-44749089311&partnerID=40&md5=e8a3626fabbe6f8fe26262b084a8f751
Keywords: Conical Intersection, Dna, Excited States, Femtosecond, Fluorescence Upconversion, Nucleobases, Pyrimidines, Solvent Effect, Thymine, Uracil,
Affiliations:
*** IBB - CNR ***
Laboratoire Francis Perrin, CEA/DSM/DRECAM/SPAM - CNRS URA 2453, CEA/Saclay, F-91191 Gif-sur-Yvette, France
Department of Chemistry, Indian Institute of Technology, Kharagpur, 721 302 WB, India
Dipartimento di Chimica, Universita Federico II, Complesso Universitario Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
Istituto Biostrutture e Bioimmagini, CNR, V. Mezzocannone 6, 80134 Napoli, Italy
References:
Not available.
Assessing solvent effects on the singlet excited state lifetime of uracil derivatives: A femtosecond fluorescence upconversion study in alcohols and D2O
The excited state lifetimes of uracil, thymine and 5-fluorouracil have been measured using femtosecond UV fluorescence upconversion in various protic and aprotic polar solvents. The fastest decays are observed in acetonitrile and the slowest in aqueous solution while those observed in alcohols are intermediate. No direct correlation with macroscopic solvent parameters such as polarity or viscosity is found, but hydrogen bonding is one key factor affecting the fluorescence decay. It is proposed that the solvent modulates the relative energy of two close-lying electronically excited states, the bright ππ* and the dark nπ* states. This relative energy gap controls the non-radiative relaxation of the ππ* state through a conical intersection close to the Franck-Condon region competing with the ultrafast internal conversion to the ground state. In addition, an inverse isotope effect is observed in D2O where the decays are faster than in H2O. © 2008 Elsevier B.V. All rights reserved.
The excited state lifetimes of uracil, thymine and 5-fluorouracil have been measured using femtosecond UV fluorescence upconversion in various protic and aprotic polar solvents. The fastest decays are observed in acetonitrile and the slowest in aqueous solution while those observed in alcohols are intermediate. No direct correlation with macroscopic solvent parameters such as polarity or viscosity is found, but hydrogen bonding is one key factor affecting the fluorescence decay. It is proposed that the solvent modulates the relative energy of two close-lying electronically excited states, the bright ππ* and the dark nπ* states. This relative energy gap controls the non-radiative relaxation of the ππ* state through a conical intersection close to the Franck-Condon region competing with the ultrafast internal conversion to the ground state. In addition, an inverse isotope effect is observed in D2O where the decays are faster than in H2O. © 2008 Elsevier B.V. All rights reserved.
Assessing solvent effects on the singlet excited state lifetime of uracil derivatives: A femtosecond fluorescence upconversion study in alcohols and D2O
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Assessing solvent effects on the singlet excited state lifetime of uracil derivatives: A femtosecond fluorescence upconversion study in alcohols and D2O
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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 (181 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 (921 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 (247 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 (329 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 (184 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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Roviello GN, Musumeci D
* Synthetic approaches to nucleopeptides containing all the four nucleobases, and nucleic acid-binding studies on a mixed-sequence nucleo-oligolysine (461 views)
Rsc Adv (ISSN: 2046-2069, 2046-2069electronic), 2016 Jun; 6: 63578-63585.
Impact Factor: 3.108
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Improta R, Santoro F, Blancafort L
* Quantum Mechanical Studies on the Photophysics and the Photochemistry of Nucleic Acids and Nucleobases (1363 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 (461 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 (519 views) (PDF 243 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 (250 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 (214 views)
Top Curr Chem (ISSN: 0340-1022), 2015; 355: 329-357.
Impact Factor: 4.014
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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 (957 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 (560 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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Improta R
* Quantum mechanical calculations unveil the structure and properties of the absorbing and emitting excited electronic states of guanine quadruplex (608 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 (303 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 (259 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 (323 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2013 Mar; 19(11): 3762-3774.
Impact Factor: 5.696
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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 (372 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 (426 views)
J Phys Chem C (ISSN: 1932-7447), 2012 Jul 12; 116(27): 14682-14689.
Impact Factor: 4.814
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Gustavsson T, Improta R, Banyasz A, Vaya I, Markovitsi D
* The effect of methylation on the excited state dynamics of aminouracils (314 views)
J Photochem Photobiol A Chem (ISSN: 1010-6030), 2012 Apr 15; 234: 37-43.
Impact Factor: 2.416
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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 (310 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 (424 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 (662 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 (299 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 (248 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 (375 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 (283 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 (263 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 (277 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 (232 views)
J Mol Struct Theochem (ISSN: 0166-1280), 2009 Nov 30; 914(1-3): 87-93.
Impact Factor: 1.216
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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 (284 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 (249 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 (346 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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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 (219 views)
Theor Chem Acc (ISSN: 1432-881x), 2008 Jul; 120(4-6): 491-497.
Impact Factor: 2.37
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Gustavsson T, Banyasz A, Sarkar N, Markovitsi D, Improta R
* Statin: New life for an old drug (372 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 (302 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 (182 views)
Physical Chemistry Chemical Physics, 2008; 10: 2656-2664.
Impact Factor: 2.028
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Santoro F, Barone V, Benzi C, Improta R
* Excited state properties of sizable molecules in solution: From structure to reactivity (274 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 (234 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 (873 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 (280 views)
Chem Phys Lett (ISSN: 0009-2614), 2006 Oct 5; 429(4-6): 551-557.
Impact Factor: 2.462
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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 (359 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 (349 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 (326 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 (243 views)
Femtochemistry Vii Elsevier (ISSN: 9780-4445), 2006; N/D: 254-257.
Impact Factor: 0
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52 Records (49 excluding Abstracts).
Total impact factor: 302.692 (295.384 excluding Abstracts).
Total 5 year impact factor: 311.729 (304.271 excluding Abstracts).
Total impact factor: 302.692 (295.384 excluding Abstracts).
Total 5 year impact factor: 311.729 (304.271 excluding Abstracts).
288 views. Last view on Saturday 09 September 2023, 3:48:34
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