Unveiling Excited-State Chirality of Binaphthols by Femtosecond Circular Dichroism and Quantum Chemical Calculations (498 views)
J Phys Chem Lett (ISSN: 1948-7185linking, 1948-7185electronic), 2019 Jul 18; 10(14): 4089-4094.
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Paper type: Journal Article,
Impact factor: 6.687, 5-year impact factor: 6.91
Url: Not available.
Keywords: Not available.
Affiliations:
*** IBB - CNR ***
Laboratoire d'Optique et Biosciences, CNRS, INSERM , Ecole Polytechnique, Institut Polytechnique de Paris , 91128 Palaiseau Cedex, France., LIDYL, CEA, CNRS , Universite Paris-Saclay , F-91191 Gif-sur-Yvette , France., Departamento de Quimica, Facultad de Ciencias, Modulo13 , Universidad Autonoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco , 28049 Madrid , Spain., Consiglio Nazionale delle Ricerche , Istituto di Chimica dei Composti Organometallici, SS di Pisa, Area della Ricerca , via G. Moruzzi 1 , I-56124 Pisa , Italy., Istituto Biostrutture e Bioimmagini , Consiglio Nazionale delle Ricerche , Via Mezzocannone 16 , I-80134 Napoli , Italy.,
References:
Not available.
J Phys Chem Lett (ISSN: 1948-7185linking, 1948-7185electronic), 2019 Jul 18; 10(14): 4089-4094.
Export to BibTeX Export to EndNote
Paper type: Journal Article,
Impact factor: 6.687, 5-year impact factor: 6.91
Url: Not available.
Keywords: Not available.
Affiliations:
*** IBB - CNR ***
Laboratoire d'Optique et Biosciences, CNRS, INSERM , Ecole Polytechnique, Institut Polytechnique de Paris , 91128 Palaiseau Cedex, France., LIDYL, CEA, CNRS , Universite Paris-Saclay , F-91191 Gif-sur-Yvette , France., Departamento de Quimica, Facultad de Ciencias, Modulo13 , Universidad Autonoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco , 28049 Madrid , Spain., Consiglio Nazionale delle Ricerche , Istituto di Chimica dei Composti Organometallici, SS di Pisa, Area della Ricerca , via G. Moruzzi 1 , I-56124 Pisa , Italy., Istituto Biostrutture e Bioimmagini , Consiglio Nazionale delle Ricerche , Via Mezzocannone 16 , I-80134 Napoli , Italy.,
References:
Not available.
Unveiling Excited-State Chirality of Binaphthols by Femtosecond Circular Dichroism and Quantum Chemical Calculations
Time-resolved circular dichroism (TR-CD) is a powerful tool for probing conformational dynamics of biomolecules over large time scales that are crucial for establishing their structure-function relationship. However, such experiments, notably in the femtosecond regime, remain challenging due to their extremely weak signals, prone to polarization artifacts. By using binol and two bridged derivatives (PL1 and PL2) as chiral prototypes, we present here the first comprehensive study of this type in the middle UV, combining femtosecond TR-CD and quantum mechanical calculations (TD-DFT). We show that excitation of the three compounds induces large variations of their transient CD signals, in sharp contrast to those of their achiral transient absorption. We demonstrate that these variations arise from both the alteration of the electronic distribution and the dihedral angle in the excited state. These results highlight the great sensitivity of TR-CD detection to signals hardly accessible to achiral transient absorption.
Time-resolved circular dichroism (TR-CD) is a powerful tool for probing conformational dynamics of biomolecules over large time scales that are crucial for establishing their structure-function relationship. However, such experiments, notably in the femtosecond regime, remain challenging due to their extremely weak signals, prone to polarization artifacts. By using binol and two bridged derivatives (PL1 and PL2) as chiral prototypes, we present here the first comprehensive study of this type in the middle UV, combining femtosecond TR-CD and quantum mechanical calculations (TD-DFT). We show that excitation of the three compounds induces large variations of their transient CD signals, in sharp contrast to those of their achiral transient absorption. We demonstrate that these variations arise from both the alteration of the electronic distribution and the dihedral angle in the excited state. These results highlight the great sensitivity of TR-CD detection to signals hardly accessible to achiral transient absorption.
Unveiling Excited-State Chirality of Binaphthols by Femtosecond Circular Dichroism and Quantum Chemical Calculations
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Unveiling Excited-State Chirality of Binaphthols by Femtosecond Circular Dichroism and Quantum Chemical Calculations
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Impact Factor: 14.357
View Export to BibTeX Export to EndNote
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View Export to BibTeX Export to EndNote
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Impact Factor: 2.883
View Export to BibTeX Export to EndNote
Zhang Y, Improta R, Kohler B
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View Export to BibTeX Export to EndNote
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Impact Factor: 5.696
View Export to BibTeX Export to EndNote
Hua Y, Changenet-Barret P, Improta R, Vaya I, Gustavsson T, Kotlyar AB, Zikich D, Sket P, Plavec J, Markovitsi D
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Impact Factor: 4.814
View Export to BibTeX Export to EndNote
Gustavsson T, Improta R, Banyasz A, Vaya I, Markovitsi D
* The effect of methylation on the excited state dynamics of aminouracils (391 views)
J Photochem Photobiol A Chem (ISSN: 1010-6030), 2012 Apr 15; 234: 37-43.
Impact Factor: 2.416
View Export to BibTeX Export to EndNote
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 (355 views)
Phys Chem Chem Phys (ISSN: 1463-9076, 1463-3907, 1463-9084electronic), 2012; 14(38): 13350-13364.
Impact Factor: 3.829
View Export to BibTeX Export to EndNote
Gustavsson T, Banyasz A, Improta R, Markovitsi D
* Femtosecond fluorescence studies of DNA/RNA constituents (272 views)
J Phys Conf Ser (ISSN: 1742-6588), 2011; 261(1): 13-13.
Impact Factor: 0.895
View Export to BibTeX Export to EndNote
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 (371 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2009; 131(16): 5839-5850.
Impact Factor: 8.58
View Export to BibTeX Export to EndNote
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 (353 views)
Chem Phys (ISSN: 0301-0104), 2008 Jun 23; 350(1-3): 186-192.
Impact Factor: 1.961
View Export to BibTeX Export to EndNote
Gustavsson T, Banyasz A, Sarkar N, Markovitsi D, Improta R
* Statin: New life for an old drug (478 views)
Pharmacol Res Academic Press, 2008 Jun 23; 350(1-3): 1-2.
Impact Factor: 3.976
View Export to BibTeX Export to EndNote
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 (323 views)
Chem Phys Lett (ISSN: 0009-2614), 2006 Oct 5; 429(4-6): 551-557.
Impact Factor: 2.462
View Export to BibTeX Export to EndNote
Nuernberger P, Vogt G, Gerber G, Improta R, Santoro F
* Femtosecond study on the isomerization dynamics of NK88. I. Ground-state dynamics after photoexcitation (398 views)
J Chem Phys (ISSN: 0021-9606, 0021-9606print, 0897-690online), 2006 Jul 28; 125(4): 44512-44544.
Impact Factor: 3.247
View Export to BibTeX Export to EndNote
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 (402 views)
J Chem Phys (ISSN: 0021-9606, 0897-690online), 2006 Jul 28; 125(4): 44512-44512.
Impact Factor: 3.166
View Export to BibTeX Export to EndNote
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 (356 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2006 Jul 6; 110(26): 12843-12847.
Impact Factor: 4.115
View Export to BibTeX Export to EndNote
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 (344 views)
Femtochemistry Vii Elsevier (ISSN: 9780-4445), 2006; N/D: 254-257.
Impact Factor: 0
View Export to BibTeX Export to EndNote
17 Records (14 excluding Abstracts).
Total impact factor: 70.077 (62.769 excluding Abstracts).
Total 5 year impact factor: 69.508 (62.05 excluding Abstracts).
Total impact factor: 70.077 (62.769 excluding Abstracts).
Total 5 year impact factor: 69.508 (62.05 excluding Abstracts).
498 views. Last view on Thursday 26 September 2024, 11:33:28
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