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Tukachev NV, Bataev VA, Abramenkov AV, Godunov IA. Structure and conformational dynamics of formamide molecule in the ground and lowest excited electronic states. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2016.02.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Danilov VI, Slyusarchuk ON, Alderfer JL, Stewart JJP, Callis PR. A THEORETICAL STUDY OF THE CYTOSINE EXCIMER STATE: THE ROLE OF GEOMETRY OPTIMIZATION. Photochem Photobiol 2008. [DOI: 10.1111/j.1751-1097.1994.tb05010.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Victor I. Danilov
- Biophysics Department, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Oleg N. Slyusarchuk
- Biophysics Department, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - James L. Alderfer
- Biophysics Department, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - James J. P. Stewart
- Stewart Computational Chemistry,15210 Paddinton Circle, Colorado Springs, CO 80921‐2512, USA
| | - Patrik R. Callis
- Department of Chemistry, Montana State University, Bozeman, MT 59717, USA
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Thiel W. Perspectives on Semiempirical Molecular Orbital Theory. ADVANCES IN CHEMICAL PHYSICS 2007. [DOI: 10.1002/9780470141526.ch10] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Computation of Reaction Mechanisms and Dynamics in Photobiology. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s1380-7323(05)80024-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Mroginski MA, Kneip C, Hildebrandt P, Mark F. Excited state geometry calculations and the resonance Raman spectrum of hexamethylpyrromethene. J Mol Struct 2003. [DOI: 10.1016/j.molstruc.2003.07.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Jolibois F, Bearpark MJ, Robb MA. Potential Energy Surfaces and Dynamical Behavior of Two Rigidly Linked Bichromophoric Molecules Studied by CASSCF Computations and Ab Initio Classical Trajectory Simulations. J Phys Chem A 2002. [DOI: 10.1021/jp015570f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Franck Jolibois
- Laboratoire de physique quantique, IRSAMC, 118 route de Narbonne, 31062 Toulouse Cedex, France, and Department of Chemistry, King's College London, Strand, London, WC2R 2LS United Kingdom
| | - Michael J. Bearpark
- Laboratoire de physique quantique, IRSAMC, 118 route de Narbonne, 31062 Toulouse Cedex, France, and Department of Chemistry, King's College London, Strand, London, WC2R 2LS United Kingdom
| | - Michael A. Robb
- Laboratoire de physique quantique, IRSAMC, 118 route de Narbonne, 31062 Toulouse Cedex, France, and Department of Chemistry, King's College London, Strand, London, WC2R 2LS United Kingdom
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Klessinger M, Bornemann C. Theoretical study of the ring-opening reactions of 2H-azirines?a classification of substituent effects. J PHYS ORG CHEM 2002. [DOI: 10.1002/poc.497] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Palmer MH, Ballard CC, Walker IC. The electronic states of propyne studied by optical (VUV) absorption, near-threshold electron energy-loss (EEL) spectroscopy and ab initio multi-reference configuration interaction calculations. Chem Phys 1999. [DOI: 10.1016/s0301-0104(99)00290-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dauben WG, Hecht S. Wavelength-Dependent Photochemistry of 4-Methoxybicyclo[3.1.0]hexenones. J Org Chem 1998; 63:6102-6107. [PMID: 11672235 DOI: 10.1021/jo970978n] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Wavelength-dependent photochemistry of a series of 4-methoxybicyclo[3.1.0]hexenones is mechanistically investigated. Upon excitation of the symmetry-forbidden S(1) n-->pi state, photoisomerization is exclusively observed. By comparison of the direct and sensitized quantum yields for this particular process, the T(1) pi-->pi state, which is populated via efficient intersystem crossing as shown by phosphorescence experiments, is proven to be the reactive state. A pathway via external cyclopropane bond cleavage followed by racemization of the formed triplet biradicals reasonably accounts for the observed photostationarity. Excitation of the electric dipole allowed S(2) pi-->pi state initiates phenol formation. The T(2) n-->pi state, which could not be sensitized, gives a type-B oxyallyl zwitterion via internal cleavage as could be shown by intermolecular as well as intramolecular trapping experiments. The observed data are in good agreement with computational studies.
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Affiliation(s)
- William G. Dauben
- Department of Chemistry, University of California, Berkeley, California 94720
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Frank I, Hutter J, Marx D, Parrinello M. Molecular dynamics in low-spin excited states. J Chem Phys 1998. [DOI: 10.1063/1.475804] [Citation(s) in RCA: 209] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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12
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Klessinger M. Triplet photoreactions; Structural dependence of spin-orbit coupling and intersystem crossing in organic biradicals. THEORETICAL AND COMPUTATIONAL CHEMISTRY 1998. [DOI: 10.1016/s1380-7323(98)80018-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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13
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Gemein B, Peyerimhoff SD. Radiationless Transitions between the First Excited Triplet State and the Singlet Ground State in Ethylene: A Theoretical Study. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp9532632] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bernhard Gemein
- Institut für Physikalische und Theoretische Chemie, Universität Bonn, Wegelerstrasse 12, D-53115 Bonn, Germany
| | - Sigrid D. Peyerimhoff
- Institut für Physikalische und Theoretische Chemie, Universität Bonn, Wegelerstrasse 12, D-53115 Bonn, Germany
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Böckmann M, Klessinger M, Zerner MC. Spin−Orbit Coupling in Organic Molecules: A Semiempirical Configuration Interaction Approach toward Triplet State Reactivity. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp9532430] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marcus Böckmann
- Organisch-Chemisches Institut der Universität, Corrensstrasse 40, D-48149 Münster, Germany
| | - Martin Klessinger
- Organisch-Chemisches Institut der Universität, Corrensstrasse 40, D-48149 Münster, Germany
| | - Michael C. Zerner
- Quantum Theory Project, Williamson Hall, University of Florida, Gainesville, Florida 32611
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Dreyer J, Klessinger M. The photochemical Formation of Fulvene from Benzene via Prefulvene–a Theoretical Study. Chemistry 1996. [DOI: 10.1002/chem.19960020315] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Steuhl HM, Klessinger M. CH-Acidität im angeregten Zustand: theoretische Untersuchungen an Suberen und Cycloheptatrien. Angew Chem Int Ed Engl 1994. [DOI: 10.1002/ange.19941062332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Dreyer J, Klessinger M. Excited states and photochemical reactivity of fulvene. A theoretical study. J Chem Phys 1994. [DOI: 10.1063/1.467879] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Influence of chlorine substituent positions on the molecular structure and the torsional potentials of dichlorinated biphenyls: R2PI spectra of the first singlet transition and AM1 calculations. J Mol Struct 1994. [DOI: 10.1016/0022-2860(94)08350-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Grimme S. MRD-CI studies of vertical excitation energies of unsaturated hydrocarbon molecules. J Comput Chem 1994. [DOI: 10.1002/jcc.540150406] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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MO-theoretical investigation on the photodissociation of carbonoxygen bonds in aromatic compounds. Chem Phys 1992. [DOI: 10.1016/0301-0104(92)87112-m] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Arthen-Engeland T, Bultmann T, Ernsting N, Rodriguez M, Thiel W. Singlet excited-state intramolecular proton tranfer in 2-(2t'-hydroxyphenyl) benzoxazole: spectroscopy at low temperatures, femtosecond transient absorption, and MNDO calculations. Chem Phys 1992. [DOI: 10.1016/0301-0104(92)80138-l] [Citation(s) in RCA: 181] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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