51
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Minezawa N, Gordon MS. Optimizing conical intersections by spin-flip density functional theory: application to ethylene. J Phys Chem A 2010; 113:12749-53. [PMID: 19905013 DOI: 10.1021/jp908032x] [Citation(s) in RCA: 133] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Conical intersections (CIs) of ethylene have been successfully determined using spin-flip density functional theory (SFDFT) combined with a penalty-constrained optimization method. We present in detail three structures, twisted-pyramidalized, hydrogen-migrated, and ethylidene CIs. In contrast to the linear response time-dependent density functional theory, which predicts a purely twisted geometry without pyramidalization as the S(1) global minimum, SFDFT gives a pyramidalized structure. Therefore, this is the first correct optimization of CI points of twisted ethylene by the DFT method. The calculated energies and geometries are in good agreement with those obtained by the multireference configuration interaction (MR-CI) method and the multistate formulation of second-order multireference perturbation theory (MS-CASPT2).
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Affiliation(s)
- Noriyuki Minezawa
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA
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52
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Zgrablić G, Ricci M, Novello AM, Parmigiani F. Dependence of Photochemical Reactivity of the All-trans Retinal Protonated Schiff Base on the Solvent and the Excitation Wavelength. Photochem Photobiol 2010; 86:507-12. [DOI: 10.1111/j.1751-1097.2009.00697.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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53
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Arasaki Y, Takatsuka K. Optical conversion of conical intersection to avoided crossing. Phys Chem Chem Phys 2010; 12:1239-42. [DOI: 10.1039/b919504a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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54
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Olsen S, McKenzie RH. Conical Intersections, charge localization, and photoisomerization pathway selection in a minimal model of a degenerate monomethine dye. J Chem Phys 2009; 131:234306. [DOI: 10.1063/1.3267862] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Seth Olsen
- Center for Organic Photonics and Electronics, School of Mathematics and Physics, The University of Queensland, Brisbane QLD 4072, Australia.
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55
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Improta R, Barone V, Lami A, Santoro F. Quantum Dynamics of the Ultrafast ππ*/nπ* Population Transfer in Uracil and 5-Fluoro-Uracil in Water and Acetonitrile. J Phys Chem B 2009; 113:14491-503. [DOI: 10.1021/jp906524p] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roberto Improta
- Dipartimento di Chimica and INSTM-Village, Universitá Federico II, Complesso Monte S. Angelo, via Cintia, I-80126 Napoli, Italy, Scuola Normale Superiore di Pisa, P.zza dei Cavalieri 7, I-56126 Pisa, Italy, and Istituto per i Processi Chimico-Fisici - CNR, Area della Ricerca del CNR Via Moruzzi,1 I-56124 Pisa, Italy
| | - Vincenzo Barone
- Dipartimento di Chimica and INSTM-Village, Universitá Federico II, Complesso Monte S. Angelo, via Cintia, I-80126 Napoli, Italy, Scuola Normale Superiore di Pisa, P.zza dei Cavalieri 7, I-56126 Pisa, Italy, and Istituto per i Processi Chimico-Fisici - CNR, Area della Ricerca del CNR Via Moruzzi,1 I-56124 Pisa, Italy
| | - Alessandro Lami
- Dipartimento di Chimica and INSTM-Village, Universitá Federico II, Complesso Monte S. Angelo, via Cintia, I-80126 Napoli, Italy, Scuola Normale Superiore di Pisa, P.zza dei Cavalieri 7, I-56126 Pisa, Italy, and Istituto per i Processi Chimico-Fisici - CNR, Area della Ricerca del CNR Via Moruzzi,1 I-56124 Pisa, Italy
| | - Fabrizio Santoro
- Dipartimento di Chimica and INSTM-Village, Universitá Federico II, Complesso Monte S. Angelo, via Cintia, I-80126 Napoli, Italy, Scuola Normale Superiore di Pisa, P.zza dei Cavalieri 7, I-56126 Pisa, Italy, and Istituto per i Processi Chimico-Fisici - CNR, Area della Ricerca del CNR Via Moruzzi,1 I-56124 Pisa, Italy
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56
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Baughman BM, Stennett E, Lipner RE, Rudawsky AC, Schmidtke SJ. Structural and Spectroscopic Studies of the Photophysical Properties of Benzophenone Derivatives. J Phys Chem A 2009; 113:8011-9. [DOI: 10.1021/jp810256x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brandi M. Baughman
- Department of Chemistry, College of Wooster, 943 College Mall, Wooster, Ohio 44691
| | - Elana Stennett
- Department of Chemistry, College of Wooster, 943 College Mall, Wooster, Ohio 44691
| | - Rachel E. Lipner
- Department of Chemistry, College of Wooster, 943 College Mall, Wooster, Ohio 44691
| | - Andrew C. Rudawsky
- Department of Chemistry, College of Wooster, 943 College Mall, Wooster, Ohio 44691
| | - Sarah J. Schmidtke
- Department of Chemistry, College of Wooster, 943 College Mall, Wooster, Ohio 44691
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57
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Santoro F, Improta R, Barone V. Three-dimensional diabatic models for the ππ* → nπ* excited-state decay of uracil derivatives in solution. Theor Chem Acc 2009. [DOI: 10.1007/s00214-009-0527-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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58
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Olsen S, McKenzie RH. A diabatic three-state representation of photoisomerization in the green fluorescent protein chromophore. J Chem Phys 2009; 130:184302. [DOI: 10.1063/1.3121324] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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59
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Virshup AM, Punwong C, Pogorelov TV, Lindquist BA, Ko C, Martínez TJ. Photodynamics in Complex Environments: Ab Initio Multiple Spawning Quantum Mechanical/Molecular Mechanical Dynamics. J Phys Chem B 2008; 113:3280-91. [DOI: 10.1021/jp8073464] [Citation(s) in RCA: 247] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aaron M. Virshup
- Center for Biophysics and Computational Biology, Department of Chemistry, and Department of Physics, University of Illinois, Urbana, Illinois, 61801
| | - Chutintorn Punwong
- Center for Biophysics and Computational Biology, Department of Chemistry, and Department of Physics, University of Illinois, Urbana, Illinois, 61801
| | - Taras V. Pogorelov
- Center for Biophysics and Computational Biology, Department of Chemistry, and Department of Physics, University of Illinois, Urbana, Illinois, 61801
| | - Beth A. Lindquist
- Center for Biophysics and Computational Biology, Department of Chemistry, and Department of Physics, University of Illinois, Urbana, Illinois, 61801
| | - Chaehyuk Ko
- Center for Biophysics and Computational Biology, Department of Chemistry, and Department of Physics, University of Illinois, Urbana, Illinois, 61801
| | - Todd J. Martínez
- Center for Biophysics and Computational Biology, Department of Chemistry, and Department of Physics, University of Illinois, Urbana, Illinois, 61801
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60
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Coe JD, Ong MT, Levine BG, Martínez TJ. On the Extent and Connectivity of Conical Intersection Seams and the Effects of Three-State Intersections. J Phys Chem A 2008; 112:12559-67. [DOI: 10.1021/jp806072k] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joshua D. Coe
- Department of Chemistry, Beckman Institute, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| | - Mitchell T. Ong
- Department of Chemistry, Beckman Institute, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| | - Benjamin G. Levine
- Department of Chemistry, Beckman Institute, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| | - Todd J. Martínez
- Department of Chemistry, Beckman Institute, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
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61
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Heisler IA, Meech SR. Polarization-Resolved Ultrafast Polarizability Relaxation in Polar Aromatic Liquids. J Phys Chem B 2008; 112:12976-84. [DOI: 10.1021/jp805862z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Ismael A. Heisler
- School of Chemical Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | - Stephen R. Meech
- School of Chemical Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom
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62
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Alfalah S, Deeb O, Zilberg S, Haas Y. Solvent effect on the conical intersection of 4-cyclopentadienylidene-1,4-dihydropyridine (CPDHP). Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.05.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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63
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Malhado JP, Hynes JT. On the Landau–Zener approach to nonadiabatic transitions for a vertical conical intersection. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2007.11.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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64
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Nonadiabatic Excited-State Dynamics of Aromatic Heterocycles: Toward the Time-Resolved Simulation of Nucleobases. ACTA ACUST UNITED AC 2008. [DOI: 10.1007/978-1-4020-8184-2_8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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65
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Barbatti M, Ruckenbauer M, Szymczak JJ, Aquino AJA, Lischka H. Nonadiabatic excited-state dynamics of polar π-systems and related model compounds of biological relevance. Phys Chem Chem Phys 2008; 10:482-94. [DOI: 10.1039/b709315m] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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66
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Levine BG, Coe JD, Martínez TJ. Optimizing conical intersections without derivative coupling vectors: application to multistate multireference second-order perturbation theory (MS-CASPT2). J Phys Chem B 2007; 112:405-13. [PMID: 18081339 DOI: 10.1021/jp0761618] [Citation(s) in RCA: 294] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
We introduce a new method for optimizing minimal energy conical intersections (MECIs), based on a sequential penalty constrained optimization in conjunction with a smoothing function. The method is applied to optimize MECI geometries using the multistate formulation of second-order multireference perturbation theory (MS-CASPT2). Resulting geometries and energetics for conjugated molecules including ethylene, butadiene, stilbene, and the green fluorescent protein chromophore are compared with state-averaged complete active space self-consistent field (SA-CASSCF) and, where possible, benchmark multireference single- and double-excitation configuration interaction (MRSDCI) optimizations. Finally, we introduce the idea of "minimal distance conical intersections", which are points on the intersection seam that lie closest to some specified geometry such as the Franck-Condon point or a local minimum on the excited state.
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Affiliation(s)
- Benjamin G Levine
- Department of Chemistry and The Beckman Institute, University of Illinois, Urbana, Illinois 61801, USA
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67
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Ando K. Ligand-to-Metal Charge-Transfer Dynamics in a Blue Copper Protein Plastocyanin: A Molecular Dynamics Study. J Phys Chem B 2007; 112:250-6. [DOI: 10.1021/jp074822v] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Koji Ando
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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68
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Akemann W, Laage D, Plaza P, Martin MM, Blanchard-Desce M. Photoinduced intramolecular charge transfer in push-pull polyenes: effects of solvation, electron-donor group, and polyenic chain length. J Phys Chem B 2007; 112:358-68. [PMID: 17997542 DOI: 10.1021/jp075418z] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Subpicosecond absorption spectroscopy is used to characterize the primary photoinduced processes in a class of push-pull polyenes bearing a julolidine end group as the electron donor and a diethylthiobarbituric acid end group as the electron acceptor. The excited-state decay time and relaxation pathway have been studied for four polyenes of increasing chain length (n = 2-5 double bonds) in aprotic solvents of different solvation time, polarity, and viscosity. Intramolecular charge transfer (ICT) leading to a transient state of cyanine-like structure (fully conjugated with no bond length alternation) is observed in all polar solvents at a solvent dependent rate, but the reaction is not observed in cyclohexane, a nonpolar solvent. In polar solvents, the reaction time increases with the average solvation time but remains slightly larger, except in the viscous solvent triacetin. These facts are interpreted as an indication that both solvent reorganization and internal restructuring are involved in the ICT-state formation. The observed photodynamics resemble those we previously found for another class of polyenes bearing a dibutylaniline group as the donor, including a similar charge-transfer rate in spite of the larger electron donor character of the julolidine group. This observation brings further support to the proposal that an intramolecular coordinate is involved in the charge-transfer reaction, possibly a torsional motion of the donor end group. On the other hand, relaxation of the ICT state leads to cis-trans isomerization or crossing to the triplet state, depending on the length of the polyenic chain. In dioxane, tetrahydrofuran, and triacetin, the ICT state of the shorter chains (n = 2, 3) relaxes to the isomer with a viscosity-dependent rate, while that of the longer ones (n = 4, 5) leads to the triplet state with a viscosity-independent rate, as expected. In acetonitrile, the ICT-state lifetime is generally much shorter. A change from photoisomerization to intersystem crossing at n = 4 is also proposed in this solvent, but the formation of a photoproduct at n = 2 is not clear. In cyclohexane, where the ICT state is not formed, the relaxation pathway of the initially excited state is found to lead to an isomer for n = 2. As in polar solvents, a change to intersystem crossing at n = 4 is proposed. The direct relaxation to the ground state found at n = 3 for the series bearing a dibutylaniline group is not observed with the julolidine group. The results clearly illustrate that photoinduced reaction trajectories in push-pull polyenes are controlled by the static and dynamic properties of the solvent, the chemical nature and size of the end groups, and the conjugated-chain length and flexibility.
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Affiliation(s)
- Walther Akemann
- UMR CNRS 8640, Département de Chimie, Ecole Normale Supérieure, 24 rue Lhomond, 75005 Paris, France
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69
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Voll J, Kerscher T, Geppert D, de Vivie-Riedle R. Influence of static and dynamical structural changes on ultrafast processes mediated by conical intersections. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2007.01.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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70
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Gromov EV, Burghardt I, Hynes JT, Köppel H, Cederbaum LS. Electronic structure of the photoactive yellow protein chromophore: Ab initio study of the low-lying excited singlet states. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2007.04.033] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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71
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Gagey N, Neveu P, Benbrahim C, Goetz B, Aujard I, Baudin JB, Jullien L. Two-Photon Uncaging with Fluorescence Reporting: Evaluation of theo-Hydroxycinnamic Platform. J Am Chem Soc 2007; 129:9986-98. [PMID: 17658803 DOI: 10.1021/ja0722022] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This paper evaluates the o-hydroxycinnamic platform for designing efficient caging groups with fluorescence reporting upon one- and two-photon excitation. The model cinnamates are easily prepared in one step by coupling commercial or readily available synthons. They exhibit a large one-photon absorption that can be tuned in the near-UV range. Uncaging after one-photon excitation was investigated by 1H NMR, UV-vis absorption, and steady-state fluorescence emission. In the whole investigated series, the caged substrate is quantitatively released upon photolysis. At the same time, uncaging releases a strongly fluorescent coproduct that can be used as a reporter for quantitative substrate delivery. The quantum yield of double bond photoisomerization leading to uncaging after one-photon absorption mostly lies in the 10% range. Taking advantage of the favorable photophysical properties of the uncaging coproduct, we use a series of techniques based on fluorescence emission to measure the action uncaging cross sections with two-photon excitation of the present cinnamates. Exhibiting values in the 1-10 GM range at 750 nm, they satisfactorily compare with the most efficient caging groups reported to date. Noticeably, the uncaging behavior with two-photon excitation is retained in vivo as suggested by the results observed in living zebrafish embryos. Reliable structure property relationships were extracted from analysis of the present collected data. In particular, the careful kinetic analysis allows us to discuss the relevance of the o-hydroxycinnamic platform for diverse caging applications with one- and two-photon excitation.
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Affiliation(s)
- Nathalie Gagey
- Ecole Normale Supérieure, Département de Chimie, UMR CNRS-ENS-Université Paris 6 8640 PASTEUR, 24 rue Lhomond, 75231 Paris Cedex 05, France
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72
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Mondal JA, Sarkar M, Samanta A, Ghosh HN, Palit DK. Charge-Transfer-Induced Twisting of the Nitro Group. J Phys Chem A 2007; 111:6122-6. [PMID: 17591761 DOI: 10.1021/jp0737193] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Excited-state relaxation dynamics of 2-amino-7-nitrofluorene (ANF) and 2-dimethylamino-7-nitrofluorene (DMANF) has been investigated in two aprotic solvents, namely acetonitrile and DMSO using femtosecond transient absorption spectroscopic technique. Following photoexcitation to the highly dipolar excited singlet (S1) state, ANF and DMANF undergo mainly two concomitant relaxation processes, namely dipolar solvation and conformational relaxation via twisting of the nitro group to an orthogonal configuration with respect to the aromatic plane. Viscosity dependence of the relaxation dynamics of the S1 states of both ANF and DMANF suggests no involvement of the twisting motion of the amino or dimethylamino group in the charge-transfer process. The twisting of the nitro group is found to be a friction affected diffusive motion, which does not associate with any further charge transfer. The results presented in this paper resolve experimentally the dynamics of the twisting motion of the nitro group for the first time.
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Affiliation(s)
- Jahur A Mondal
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
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