1
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Medhi B, Nath U, Sarma M. Revisiting fulgide photochromism: Mechanistic decoding and electron transport from computational exploration. J Chem Phys 2024; 160:154308. [PMID: 38634497 DOI: 10.1063/5.0203307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 04/01/2024] [Indexed: 04/19/2024] Open
Abstract
The photochromic behavior of the fulgide molecule relies on ring-closure and ring-opening processes involving conical intersections during excited state transformation between isomers. The precise location and topography of these conical intersections significantly shape the decay process and fluorescence phenomena inherent to the molecule. This work combines electronic structure theory calculations using the density functional theory and wavefunction methods, as well as surface hopping simulation to analyze the photochemical behavior of an experimentally synthesized fulgide molecule, (E)-p-methylacetophenylisopropylidenesuccinic anhydride (1E). Our study reveals the conical intersection between the first excited state (S1) and the ground electronic state (S0), which emerges beyond the S1 minimum of 1E to the ring-closing side. The distinctive topography of this conical intersection appears to be sloped. These findings suggest a reduced quantum yield for the formation of the closed isomer, indicating a higher likelihood of reformation of the open isomer(s). The surface hopping simulation further supports this observation, revealing a mere ∼8% quantum yield for the formation of the closed isomer. In addition, the photoisomerization of the fulgide molecule initiates a cascade of conduction switching and holds great potential for applications in molecular electronics. Delving into the realm of molecular electronics, we have further examined the electron transport properties, disclosing the higher conductivity of the closed isomer.
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Affiliation(s)
- Biman Medhi
- Department of Chemistry, Indian Institute of Technology, Guwahati, Assam, India
| | - Upasana Nath
- Department of Chemistry, Indian Institute of Technology, Guwahati, Assam, India
| | - Manabendra Sarma
- Department of Chemistry, Indian Institute of Technology, Guwahati, Assam, India
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2
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Lvov AG, Koffi Kouame E, Khusniyarov MM. Light-Induced Dyotropic Rearrangement of Diarylethenes: Scope, Mechanism, and Prospects. Chemistry 2023; 29:e202301480. [PMID: 37477021 DOI: 10.1002/chem.202301480] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/14/2023] [Accepted: 07/19/2023] [Indexed: 07/22/2023]
Abstract
Irreversible two-photon photorearrangement of 1,2-diarylethenes is a unique process providing access to complex 2a1 ,5a-dihydro-5,6-dithiaacenaphthylene (DDA) heterocyclic core. This reaction was serendipitously discovered during studies on photoswitchable diarylethenes and was initially considered as a highly undesired process. However, in recent years, it has been recognized as an efficient photochemical reaction, interesting by itself and as a promising synthetic method for the synthesis of challenging molecules. Herein, we discuss the state-of-the-art in studies on this notable process.
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Affiliation(s)
- Andrey G Lvov
- Irkutsk National Research Technical University, 83, Lermontov St., Irkutsk, 664074, Russia
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk, 664033, Russia
| | - Eric Koffi Kouame
- Irkutsk National Research Technical University, 83, Lermontov St., Irkutsk, 664074, Russia
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk, 664033, Russia
| | - Marat M Khusniyarov
- Department of Chemistry and Pharmacy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Egerlandstrasse 1, 91058, Erlangen, Germany
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3
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Travnikova O, Piteša T, Ponzi A, Sapunar M, Squibb RJ, Richter R, Finetti P, Di Fraia M, De Fanis A, Mahne N, Manfredda M, Zhaunerchyk V, Marchenko T, Guillemin R, Journel L, Prince KC, Callegari C, Simon M, Feifel R, Decleva P, Došlić N, Piancastelli MN. Photochemical Ring-Opening Reaction of 1,3-Cyclohexadiene: Identifying the True Reactive State. J Am Chem Soc 2022; 144:21878-21886. [PMID: 36444673 PMCID: PMC9732879 DOI: 10.1021/jacs.2c06296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The photochemically induced ring-opening isomerization reaction of 1,3-cyclohexadiene to 1,3,5-hexatriene is a textbook example of a pericyclic reaction and has been amply investigated with advanced spectroscopic techniques. The main open question has been the identification of the single reactive state which drives the process. The generally accepted description of the isomerization pathway starts with a valence excitation to the lowest lying bright state, followed by a passage through a conical intersection to the lowest lying doubly excited state, and finally a branching between either the return to the ground state of the cyclic molecule or the actual ring-opening reaction leading to the open-chain isomer. Here, in a joint experimental and computational effort, we demonstrate that the evolution of the excitation-deexcitation process is much more complex than that usually described. In particular, we show that an initially high-lying electronic state smoothly decreasing in energy along the reaction path plays a key role in the ring-opening reaction.
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Affiliation(s)
- Oksana Travnikova
- Sorbonne
Université, CNRS, Laboratoire de Chimie Physique-Matière
et Rayonnement, LCPMR, ParisF-75005, France
| | | | - Aurora Ponzi
- Institut
Rud̵er Bošković, ZagrebHR-10000, Croatia
| | | | | | | | | | | | | | - Nicola Mahne
- IOM-CNR, S.S. 14 km 163.5 in Area Science
Park, Trieste34149, Italy
| | | | - Vitali Zhaunerchyk
- Department
of Physics, University of Gothenburg, GothenburgSE-412 96, Sweden
| | - Tatiana Marchenko
- Sorbonne
Université, CNRS, Laboratoire de Chimie Physique-Matière
et Rayonnement, LCPMR, ParisF-75005, France
| | - Renaud Guillemin
- Sorbonne
Université, CNRS, Laboratoire de Chimie Physique-Matière
et Rayonnement, LCPMR, ParisF-75005, France
| | - Loic Journel
- Sorbonne
Université, CNRS, Laboratoire de Chimie Physique-Matière
et Rayonnement, LCPMR, ParisF-75005, France
| | | | | | - Marc Simon
- Sorbonne
Université, CNRS, Laboratoire de Chimie Physique-Matière
et Rayonnement, LCPMR, ParisF-75005, France
| | - Raimund Feifel
- Department
of Physics, University of Gothenburg, GothenburgSE-412 96, Sweden
| | - Piero Decleva
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Universitá
di Trieste, TriesteI-34127, Italy
| | - Nad̵a Došlić
- Institut
Rud̵er Bošković, ZagrebHR-10000, Croatia,
| | - Maria Novella Piancastelli
- Sorbonne
Université, CNRS, Laboratoire de Chimie Physique-Matière
et Rayonnement, LCPMR, ParisF-75005, France,Department
of Physics and Astronomy, Uppsala University, UppsalaSE-751 20, Sweden,
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4
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Guerra C, Ayarde-Henríquez L, Duque-Noreña M, Chamorro E. Photochemically Induced 1,3-Butadiene Ring-Closure from the Topological Analysis of the Electron Localization Function Viewpoint. Chemphyschem 2022; 23:e202200217. [PMID: 35689411 DOI: 10.1002/cphc.202200217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/01/2022] [Indexed: 11/10/2022]
Abstract
The electronic rearrangement featuring the photochemically-induced 1,3-cis-butadiene is discussed within a bonding evolution theory (BET) perspective based on the topological analysis of the electron localization function and Thom's catastrophe theory. The process involves the vertical singlet-singlet excitation S0 →S2 , and the subsequent deactivation implying the S2 /S1 and S1 /S0 conical intersection regions. BET results reveal that the new CC bond is finally formed on the S0 surface, as also recently found in the photochemical addition of two ethylenes [Phys. Chem. Chem. Phys. 23, 20598, (2021)].
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Affiliation(s)
- Cristian Guerra
- Universidad Andrés Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas. Avenida, República 275, 8370146, Santiago de Chile, Chile.,Universidad de Córdoba, Facultad de Ciencias Básicas, Departamento de Química, Grupo de Química Computacional (GQC)., Carrera 6 No, 77- 305, Montería - Córdoba, Colombia
| | - Leandro Ayarde-Henríquez
- Universidad Andrés Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas. Avenida, República 275, 8370146, Santiago de Chile, Chile
| | - Mario Duque-Noreña
- Universidad Andrés Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas. Avenida, República 275, 8370146, Santiago de Chile, Chile
| | - Eduardo Chamorro
- Universidad Andrés Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas. Avenida, República 275, 8370146, Santiago de Chile, Chile
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5
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Raucci U, Weir H, Bannwarth C, Sanchez DM, Martínez TJ. Chiral photochemistry of achiral molecules. Nat Commun 2022; 13:2091. [PMID: 35440559 PMCID: PMC9019051 DOI: 10.1038/s41467-022-29662-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 03/25/2022] [Indexed: 11/23/2022] Open
Abstract
Chirality is a molecular property governed by the topography of the potential energy surface (PES). Thermally achiral molecules interconvert rapidly when the interconversion barrier between the two enantiomers is comparable to or lower than the thermal energy, in contrast to thermally stable chiral configurations. In principle, a change in the PES topography on the excited electronic state may diminish interconversion, leading to electronically prochiral molecules that can be converted from achiral to chiral by electronic excitation. Here we report that this is the case for two prototypical examples – cis-stilbene and cis-stiff stilbene. Both systems exhibit unidirectional photoisomerization for each enantiomer as a result of their electronic prochirality. We simulate an experiment to demonstrate this effect in cis-stilbene based on its interaction with circularly polarized light. Our results highlight the drastic change in chiral behavior upon electronic excitation, opening up the possibility for asymmetric photochemistry from an effectively nonchiral starting point. The authors report non-adiabatic first principles molecular dynamics to show how an achiral molecule can be converted to a chiral one upon photoexcitation. These results demonstrate the possibility of asymmetric photochemistry starting from achiral reactants.
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Affiliation(s)
- Umberto Raucci
- Department of Chemistry and The PULSE Institute, Stanford University, Stanford, CA, 94305, USA.,SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA.,Italian Institute of Technology, Genova, GE, Italy
| | - Hayley Weir
- Department of Chemistry and The PULSE Institute, Stanford University, Stanford, CA, 94305, USA.,SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - Christoph Bannwarth
- Department of Chemistry and The PULSE Institute, Stanford University, Stanford, CA, 94305, USA.,SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA.,Institute of Physical Chemistry, RWTH Aachen University, Aachen, Germany
| | - David M Sanchez
- Department of Chemistry and The PULSE Institute, Stanford University, Stanford, CA, 94305, USA.,SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA.,Design Physics Division, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Todd J Martínez
- Department of Chemistry and The PULSE Institute, Stanford University, Stanford, CA, 94305, USA. .,SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA.
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6
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Guerra C, Ayarde-Henríquez L, Duque-Noreña M, Chamorro E. On Electron Pair Rearrangements in Photochemical Reactions: 1,3-Cyclohexadiene Ring Opening. J Phys Chem A 2021; 126:395-405. [PMID: 34923827 DOI: 10.1021/acs.jpca.1c07800] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
1,3-Cyclohexadiene ring opening has been studied within the bonding evolution theory (BET) framework. We have focused on describing for the first time the electron pair rearrangements leading to the cis-1,3,5-hexatriene (HT) product from CHD. The nature of bonding in this process begins with the weakening of the double bonds in the Franck-Condon region. Along the 11B surface, the C-C sigma bond weakens. Meanwhile, its density redistributes toward the whole CHD ring, mainly over double bonds. Breaking of this bond occurs on the 21A surface due to the symmetrical splitting of pair density from this region. This density redistributes toward the reaction center once the pericyclic minimum is reached. The formation of the double bonds that characterize HT occurs gradually in the ground state. However, near the 21A/11A intersection, these bonds are partially established.
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Affiliation(s)
- Cristian Guerra
- Facultad de Ciencias Exactas. Departamento de Ciencias Químicas, Universidad Andrés Bello, Avenida República 275, 8370146 Santiago de Chile, Chile
| | - Leandro Ayarde-Henríquez
- Facultad de Ciencias Exactas. Departamento de Ciencias Químicas, Universidad Andrés Bello, Avenida República 275, 8370146 Santiago de Chile, Chile
| | - Mario Duque-Noreña
- Facultad de Ciencias Exactas. Departamento de Ciencias Químicas, Universidad Andrés Bello, Avenida República 275, 8370146 Santiago de Chile, Chile
| | - Eduardo Chamorro
- Facultad de Ciencias Exactas. Departamento de Ciencias Químicas, Universidad Andrés Bello, Avenida República 275, 8370146 Santiago de Chile, Chile
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7
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Fang Y, Duan YC, Geng Y, Zhao ZW, Zhong RL, Zhao L, Li RH, Zhang M, Su ZM. Theoretical study on the photocyclization reactivity mechanism in a diarylethene derivative with multicolour fluorescence modulation. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Filatov M, Lee S, Nakata H, Choi CH. Structural or population dynamics: what is revealed by the time-resolved photoelectron spectroscopy of 1,3-cyclohexadiene? A study with an ensemble density functional theory method. Phys Chem Chem Phys 2020; 22:17567-17573. [PMID: 32716454 DOI: 10.1039/d0cp02963g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Time-resolved photoelectron spectra during the photochemical ring-opening reaction of 1,3-cyclohexadiene (CHD) are modeled by an ensemble density functional theory (eDFT) method. The computational methodology employed in this work is capable of correctly describing the multi-reference effects arising in the ground and excited electronic states of molecules, which is important for the correct description of the ring-opening reaction of CHD. The geometries of molecular species along the non-adiabatic molecular dynamics (NAMD) trajectories reported in a previous study of the CHD photochemical ring-opening were used in this work to calculate the ionization energies and the respective Dyson orbitals for all possible ionization channels. The obtained theoretical time-resolved spectra display decay characteristics in a reasonable agreement with the experimental observations; i.e., the decay (and rise) of the most mechanistically significant signals occurs on the timescale of 100-150 fs. This is very different from the excited state population decay characteristics (τS1 = 234 ± 8 fs) obtained in the previous NAMD study. The difference between the population decay and the decay of the photoelectron signal intensity is traced back to the geometric transformation that the molecule undergoes during the photoreaction. This demonstrates the importance of including the geometric information in interpretation of the experimental observations.
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Affiliation(s)
- Michael Filatov
- Department of Chemistry, Kyungpook National University, Daegu 702-701, South Korea.
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9
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Chakraborty P, Liu Y, Weinacht T, Matsika S. Excited state dynamics of cis,cis-1,3-cyclooctadiene: Non-adiabatic trajectory surface hopping. J Chem Phys 2020; 152:174302. [PMID: 32384830 DOI: 10.1063/5.0005558] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have performed trajectory surface hopping dynamics for cis,cis-1,3-cyclooctadiene to investigate the photochemical pathways involved after being excited to the S1 state. Our calculations reveal ultrafast decay to the ground state, facilitated by conical intersections involving distortions around the double bonds. The main distortions are localized on one double bond, involving twisting and pyramidalization of one of the carbons of that double bond (similar to ethylene), while a limited number of trajectories decay via delocalized (non-local) twisting of both double bonds. The interplay between local and non-local distortions is important in our understanding of photoisomerization in conjugated systems. The calculations show that a broad range of the conical intersection seam space is accessed during the non-adiabatic events. Several products formed on the ground state have also been observed.
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Affiliation(s)
- Pratip Chakraborty
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Yusong Liu
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794, USA
| | - Thomas Weinacht
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794, USA
| | - Spiridoula Matsika
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, USA
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10
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Li Y, Pérez Lustres JL, Volpp HR, Buckup T, Kolmar T, Jäschke A, Motzkus M. Ultrafast ring closing of a diarylethene-based photoswitchable nucleoside. Phys Chem Chem Phys 2019; 20:22867-22876. [PMID: 30152514 DOI: 10.1039/c8cp03549k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Deoxyuridine nucleosides embodied into diarylethenes form an especial class of photoswitchable compounds that are designed to stack and pair with DNA bases. The molecular geometry can be switched between "open" and "closed" isomers by a pericyclic reaction that affects the stability of the surrounding double helix. This potentially enables light-induced control of DNA hybridization at microscopic resolution. Despite its importance for the optimization of DNA photoswitches, the ultrafast photoisomerization mechanism of these diarylethenes is still not well understood. In this work, femtosecond transient absorption spectroscopy is applied to study the ring closing reaction upon UV excitation with 45 fs pulses. Excited-state absorption decays rapidly and gives rise to the UV-Vis difference spectrum of the "closed" form within ≈15 ps. Time constants of 0.09, 0.49 and 6.6 ps characterize the multimodal dynamics, where a swift recurrence in the signal anisotropy indicates transient population of the intermediate 21A-like state.
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Affiliation(s)
- Yang Li
- Physikalisch Chemisches Institut, Ruprecht-Karls University, D-69120 Heidelberg, Germany.
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11
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Polyak I, Hutton L, Crespo-Otero R, Barbatti M, Knowles PJ. Ultrafast Photoinduced Dynamics of 1,3-Cyclohexadiene Using XMS-CASPT2 Surface Hopping. J Chem Theory Comput 2019; 15:3929-3940. [DOI: 10.1021/acs.jctc.9b00396] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Iakov Polyak
- School of Chemistry, Cardiff University, Cardiff CF10 3AT, United Kingdom
| | - Lewis Hutton
- School of Chemistry, Cardiff University, Cardiff CF10 3AT, United Kingdom
| | - Rachel Crespo-Otero
- School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom
| | | | - Peter J. Knowles
- School of Chemistry, Cardiff University, Cardiff CF10 3AT, United Kingdom
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12
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Filatov M, Min SK, Kim KS. Non-adiabatic dynamics of ring opening in cyclohexa-1,3-diene described by an ensemble density-functional theory method. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1519200] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Michael Filatov
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Korea
| | - Seung Kyu Min
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Korea
| | - Kwang S. Kim
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Korea
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13
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Ishida T, Nanbu S, Nakamura H. Clarification of nonadiabatic chemical dynamics by the Zhu-Nakamura theory of nonadiabatic transition: from tri-atomic systems to reactions in solutions. INT REV PHYS CHEM 2017. [DOI: 10.1080/0144235x.2017.1293399] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Ohta A, Kobayashi O, Danielache SO, Nanbu S. Nonadiabatic ab initio molecular dynamics with PME-ONIOM scheme of photoisomerization reaction between 1,3-cyclohexadiene and 1,3,5-cis-hexatriene in solution phase. Chem Phys 2017. [DOI: 10.1016/j.chemphys.2017.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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15
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Schalk O, Geng T, Thompson T, Baluyot N, Thomas RD, Tapavicza E, Hansson T. Cyclohexadiene Revisited: A Time-Resolved Photoelectron Spectroscopy and ab Initio Study. J Phys Chem A 2016; 120:2320-9. [DOI: 10.1021/acs.jpca.5b10928] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Oliver Schalk
- Department
of Chemical Physics, AlbaNova University Centre, Stockholm University, Roslagstullsbacken 21, 106 91 Stockholm, Sweden
| | - Ting Geng
- Department
of Chemical Physics, AlbaNova University Centre, Stockholm University, Roslagstullsbacken 21, 106 91 Stockholm, Sweden
| | - Travis Thompson
- Department
of Chemistry and Biochemistry, California State University, Long Beach, 1250 Bellflower Boulevard, Long Beach, California 90840-9507, United States
| | - Noel Baluyot
- Department
of Chemistry and Biochemistry, California State University, Long Beach, 1250 Bellflower Boulevard, Long Beach, California 90840-9507, United States
| | - Richard D. Thomas
- Department
of Chemical Physics, AlbaNova University Centre, Stockholm University, Roslagstullsbacken 21, 106 91 Stockholm, Sweden
| | - Enrico Tapavicza
- Department
of Chemistry and Biochemistry, California State University, Long Beach, 1250 Bellflower Boulevard, Long Beach, California 90840-9507, United States
| | - Tony Hansson
- Department
of Chemical Physics, AlbaNova University Centre, Stockholm University, Roslagstullsbacken 21, 106 91 Stockholm, Sweden
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16
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Lei Y, Wu H, Zheng X, Zhai G, Zhu C. Photo-induced 1,3-cyclohexadiene ring opening reaction: Ab initio on-the-fly nonadiabatic molecular dynamics simulation. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2015.10.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Nonadiabatic ab initio molecular dynamics of photoisomerization reaction between 1,3-cyclohexadiene and 1,3,5-cis-hexatriene. Chem Phys 2015. [DOI: 10.1016/j.chemphys.2015.07.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Pemberton CC, Zhang Y, Saita K, Kirrander A, Weber PM. From the (1B) Spectroscopic State to the Photochemical Product of the Ultrafast Ring-Opening of 1,3-Cyclohexadiene: A Spectral Observation of the Complete Reaction Path. J Phys Chem A 2015; 119:8832-45. [DOI: 10.1021/acs.jpca.5b05672] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christine C. Pemberton
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Yao Zhang
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Kenichiro Saita
- EaStCHEM,
School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, United Kingdom
| | - Adam Kirrander
- EaStCHEM,
School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, United Kingdom
| | - Peter M. Weber
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
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19
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Vazquez FX, Talapatra S, Sension RJ, Geva E. The Entropic Origin of Solvent Effects on the Single Bond cZt-tZt Isomerization Rate Constant of 1,3,5-cis-Hexatriene in Alkane and Alcohol Solvents: A Molecular Dynamics Study. J Phys Chem B 2014; 118:7869-77. [DOI: 10.1021/jp5002644] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Francisco X. Vazquez
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Surma Talapatra
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Roseanne J. Sension
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Eitan Geva
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
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20
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Arruda BC, Sension RJ. Ultrafast polyene dynamics: the ring opening of 1,3-cyclohexadiene derivatives. Phys Chem Chem Phys 2014; 16:4439-55. [DOI: 10.1039/c3cp54767a] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Renth F, Siewertsen R, Strübe F, Mattay J, Temps F. Ultrafast Z → E photoisomerisation of structurally modified furylfulgides. Phys Chem Chem Phys 2014; 16:19556-63. [DOI: 10.1039/c4cp01739k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Femtosecond transient absorption spectroscopy of Z-fulgides with selected structural motifs revealed fast and direct excited-state dynamics independent of chemical modifications.
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Affiliation(s)
- Falk Renth
- Institut für Physikalische Chemie
- Christian-Albrechts-Universität zu Kiel
- D-24098 Kiel, Germany
| | - Ron Siewertsen
- Institut für Physikalische Chemie
- Christian-Albrechts-Universität zu Kiel
- D-24098 Kiel, Germany
| | - Frank Strübe
- Organische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33501 Bielefeld, Germany
| | - Jochen Mattay
- Organische Chemie I
- Fakultät für Chemie
- Universität Bielefeld
- D-33501 Bielefeld, Germany
| | - Friedrich Temps
- Institut für Physikalische Chemie
- Christian-Albrechts-Universität zu Kiel
- D-24098 Kiel, Germany
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22
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Petrovic VS, Schorb S, Kim J, White J, Cryan JP, Glownia JM, Zipp L, Broege D, Miyabe S, Tao H, Martinez T, Bucksbaum PH. Enhancement of strong-field multiple ionization in the vicinity of the conical intersection in 1,3-cyclohexadiene ring opening. J Chem Phys 2013; 139:184309. [DOI: 10.1063/1.4829766] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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23
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Renth F, Siewertsen R, Temps F. Enhanced photoswitching and ultrafast dynamics in structurally modified photochromic fulgides. INT REV PHYS CHEM 2013. [DOI: 10.1080/0144235x.2012.729331] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Nenov A, Schreier WJ, Koller FO, Braun M, de Vivie-Riedle R, Zinth W, Pugliesi I. Molecular Model of the Ring-Opening and Ring-Closure Reaction of a Fluorinated Indolylfulgide. J Phys Chem A 2012; 116:10518-28. [DOI: 10.1021/jp307437f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Artur Nenov
- Department für Chemie, Ludwig-Maximilians-Universität München, Butenandt-Strasse 11, 81377 München, Germany
| | - Wolfgang J. Schreier
- Lehrstuhl für BioMolekulare
Optik, Ludwig-Maximilians-Universität München, Oettingenstrasse 67, 80538 München, Germany
| | - Florian O. Koller
- Lehrstuhl für BioMolekulare
Optik, Ludwig-Maximilians-Universität München, Oettingenstrasse 67, 80538 München, Germany
| | - Markus Braun
- Lehrstuhl für BioMolekulare
Optik, Ludwig-Maximilians-Universität München, Oettingenstrasse 67, 80538 München, Germany
- Institut für Physikalische und Theoretische
Chemie, Goethe-Universität Frankfurt am Main, Max-von-Laue Strasse 7, D-60438 Frankfurt am Main, Germany
| | - Regina de Vivie-Riedle
- Department für Chemie, Ludwig-Maximilians-Universität München, Butenandt-Strasse 11, 81377 München, Germany
| | - Wolfgang Zinth
- Lehrstuhl für BioMolekulare
Optik, Ludwig-Maximilians-Universität München, Oettingenstrasse 67, 80538 München, Germany
| | - Igor Pugliesi
- Lehrstuhl für BioMolekulare
Optik, Ludwig-Maximilians-Universität München, Oettingenstrasse 67, 80538 München, Germany
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25
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von den Hoff P, Thallmair S, Kowalewski M, Siemering R, de Vivie-Riedle R. Optimal control theory--closing the gap between theory and experiment. Phys Chem Chem Phys 2012; 14:14460-85. [PMID: 23019574 DOI: 10.1039/c2cp41838j] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Optimal control theory and optimal control experiments are state-of-the-art tools to control quantum systems. Both methods have been demonstrated successfully for numerous applications in molecular physics, chemistry and biology. Modulated light pulses could be realized, driving these various control processes. Next to the control efficiency, a key issue is the understanding of the control mechanism. An obvious way is to seek support from theory. However, the underlying search strategies in theory and experiment towards the optimal laser field differ. While the optimal control theory operates in the time domain, optimal control experiments optimize the laser fields in the frequency domain. This also implies that both search procedures experience a different bias and follow different pathways on the search landscape. In this perspective we review our recent developments in optimal control theory and their applications. Especially, we focus on approaches, which close the gap between theory and experiment. To this extent we followed two ways. One uses sophisticated optimization algorithms, which enhance the capabilities of optimal control experiments. The other is to extend and modify the optimal control theory formalism in order to mimic the experimental conditions.
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Affiliation(s)
- Philipp von den Hoff
- Department of Chemistry, Ludwig-Maximilians-Universität München, München, Germany
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26
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White JL, Kim J, Petrović VS, Bucksbaum PH. Ultrafast ring opening in 1,3-cyclohexadiene investigated by simplex-based spectral unmixing. J Chem Phys 2012; 136:054303. [DOI: 10.1063/1.3681258] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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27
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Mori T, Glover WJ, Schuurman MS, Martinez TJ. Role of Rydberg States in the Photochemical Dynamics of Ethylene. J Phys Chem A 2012; 116:2808-18. [DOI: 10.1021/jp2097185] [Citation(s) in RCA: 122] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Toshifumi Mori
- PULSE Institute and Department of Chemistry, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California, United States
| | - William J. Glover
- PULSE Institute and Department of Chemistry, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California, United States
| | - Michael S. Schuurman
- Steacie Institute for Molecular Sciences, National Research Council of Canada, Ottawa, Canada
| | - Todd J. Martinez
- PULSE Institute and Department of Chemistry, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California, United States
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28
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Marazzi M, Blanco-Lomas M, Rodríguez MA, Campos PJ, Castaño O, Sampedro D, Frutos LM. On the mechanism of the photocyclization of azadienes. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.10.101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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29
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Schönborn JB, Koslowski A, Thiel W, Hartke B. Photochemical dynamics of E-iPr-furylfulgide. Phys Chem Chem Phys 2012; 14:12193-201. [DOI: 10.1039/c2cp41817g] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Tapavicza E, Meyer AM, Furche F. Unravelling the details of vitamin D photosynthesis by non-adiabatic molecular dynamics simulations. Phys Chem Chem Phys 2011; 13:20986-98. [PMID: 22020179 DOI: 10.1039/c1cp21292c] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We investigate the photodynamics of vitamin D derivatives by a fully analytical implementation of the linear response time-dependent density functional theory surface hopping method (LR-TDDFT-SH). Our study elucidates the dynamics of the processes involved in vitamin D formation at the molecular level and with femtosecond resolution. We explain the major experimental findings and provide new insights that cannot directly be obtained from experiments: firstly, we investigate the dynamics of the photoinduced ring-opening of provitamin D (Pro) and cyclohexadiene (CHD) and the subsequent rotational isomerization. In agreement with recent experiments and CC2 calculations, only the bright S(1) state is involved in the ring-opening reaction. Our calculations confirm the experimentally reported 5 : 1 ratio between the excited state lifetimes of Pro and CHD. The longer lifetimes of Pro are attributed to steric constraints of the steroid skeleton and to temperature effects, both emerging directly from our simulations. For CHD and Pro, we present an explanation of the biexponential decay recently reported by Sension and coworkers [Tang et al., J. Phys. Chem., 2011, 134, 104503]: our calculations suggest that the fast and slow components arise from a reactive and an unreactive reaction pathway, respectively. Secondly, we assess the wavelength dependent photochemistry of previtamin D (Pre). Using replica exchange molecular dynamics we sample the Pre conformers present at thermal equilibrium. Based on this ensemble we explain the conformation dependent absorption and the essential features of Pre photochemistry. Consistent with the experiments, we find ring-closure to occur mostly after excitation of the cZc conformers and at lower energies, whereas Z/E isomerization of the central double bond preferably occurs after excitation at higher energies. For the isomerization we provide the first theoretical evidence of the proposed hula-twist mechanism. Our results show that LR-TDDFT-SH is a highly valuable tool for studying the photochemistry of moderately large systems, even though challenges remain in the vicinity of conical intersections.
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Affiliation(s)
- Enrico Tapavicza
- Department of Chemistry, University of California, Irvine, 1102 Natural Sciences 2, Irvine, California 92697-2025, USA.
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31
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Deb S, Weber PM. The Ultrafast Pathway of Photon-Induced Electrocyclic Ring-Opening Reactions: The Case of 1,3-Cyclohexadiene. Annu Rev Phys Chem 2011; 62:19-39. [DOI: 10.1146/annurev.physchem.012809.103350] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The photochemically induced electrocyclic ring-opening reaction of 1,3-cyclohexadiene to 1,3,5-hexatriene serves as a prototype for many important reactions in chemistry and in biological systems. Based on experimental and computational studies, a detailed picture of the reaction has now emerged: Excitation to the Franck-Condon region places the molecule on a steeply repulsive part of the 1B potential energy surface, which propels the molecule in exactly the conrotatory direction that conforms to the Woodward-Hoffmann rules of orbital symmetry. Bypassing a cusp in a symmetry-breaking direction, the wave packet enters the 2A state within 55 fs. It continues to move directly toward the 2A/1A conical intersection, where it crosses in approximately 80 fs to the ground state. This article summarizes the published experimental and theoretical work to describe the current understanding of the reaction while pointing to important questions that remain to be addressed.
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Affiliation(s)
| | - Peter M. Weber
- Department of Chemistry, Brown University, Providence, Rhode Island 02912;
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32
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Ji Y, Verdaguer X, Riera A. Solvent and Substituent Effects on the Photochemistry of Norbornadiene-Diarylacetylene Pauson-Khand Adducts. Chemistry 2011; 17:3942-8. [DOI: 10.1002/chem.201001037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Revised: 10/19/2010] [Indexed: 12/28/2022]
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33
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Siewertsen R, Strübe F, Mattay J, Renth F, Temps F. Electronic and steric effects on the photo-induced C→E ring-opening of structurally modified furylfulgides. Phys Chem Chem Phys 2011; 13:15699-707. [DOI: 10.1039/c1cp21320b] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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34
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Schapiro I, Melaccio F, Laricheva EN, Olivucci M. Using the computer to understand the chemistry of conical intersections. Photochem Photobiol Sci 2011; 10:867-86. [DOI: 10.1039/c0pp00290a] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Siewertsen R, Strübe F, Mattay J, Renth F, Temps F. Tuning of switching properties and excited-state dynamics of fulgides by structural modifications. Phys Chem Chem Phys 2011; 13:3800-8. [DOI: 10.1039/c0cp01890b] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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36
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Masunov AE, Mikhailov IA. Theory and computations of two-photon absorbing photochromic chromophores. ACTA ACUST UNITED AC 2010. [DOI: 10.5155/eurjchem.1.2.142-161.119] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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37
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Marzec KM, Reva I, Fausto R, Malek K, Proniewicz LM. Conformational Space and Photochemistry of α-Terpinene. J Phys Chem A 2010; 114:5526-36. [DOI: 10.1021/jp100770v] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- K. M. Marzec
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland, and Departament of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal
| | - I. Reva
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland, and Departament of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal
| | - R. Fausto
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland, and Departament of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal
| | - K. Malek
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland, and Departament of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal
| | - L. M. Proniewicz
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland, and Departament of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal
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38
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Schönborn JB, Sielk J, Hartke B. Photochemical Ring-Opening of Cyclohexadiene: Quantum Wavepacket Dynamics on a Global Ab Initio Potential Energy Surface. J Phys Chem A 2010; 114:4036-44. [DOI: 10.1021/jp909362c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. B. Schönborn
- Institut für Physikalische Chemie, Christian-Albrechts-Universität, Olshausenstrasse 40, 24098 Kiel, Germany
| | - J. Sielk
- Institut für Physikalische Chemie, Christian-Albrechts-Universität, Olshausenstrasse 40, 24098 Kiel, Germany
| | - B. Hartke
- Institut für Physikalische Chemie, Christian-Albrechts-Universität, Olshausenstrasse 40, 24098 Kiel, Germany
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39
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Li A, Yuan S, Dou Y, Wang Y, Wen Z. Semiclassical dynamic simulation of photon induced ring-opening of cyclohexadiene to hexatriene. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.07.048] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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40
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Dynamic electron correlation effect on conical intersections in photochemical ring-opening reaction of cyclohexadiene: MS-CASPT2 study. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.05.067] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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Mikhailov IA, Belfield KD, Masunov AE. DFT-Based Methods in the Design of Two-Photon Operated Molecular Switches. J Phys Chem A 2009; 113:7080-9. [DOI: 10.1021/jp8113368] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ivan A. Mikhailov
- NanoScience Technology Center, University of Central Florida, 12424 Research Parkway, Orlando, Florida 32826, and Department of Chemistry, CREOL, College of Optics and Photonics, and Department of Physics, University of Central Florida, P.O. Box 162366, Orlando, Florida 32816-2366
| | - Kevin D. Belfield
- NanoScience Technology Center, University of Central Florida, 12424 Research Parkway, Orlando, Florida 32826, and Department of Chemistry, CREOL, College of Optics and Photonics, and Department of Physics, University of Central Florida, P.O. Box 162366, Orlando, Florida 32816-2366
| | - Artëm E. Masunov
- NanoScience Technology Center, University of Central Florida, 12424 Research Parkway, Orlando, Florida 32826, and Department of Chemistry, CREOL, College of Optics and Photonics, and Department of Physics, University of Central Florida, P.O. Box 162366, Orlando, Florida 32816-2366
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42
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Kotur M, Weinacht T, Pearson BJ, Matsika S. Closed-loop learning control of isomerization using shaped ultrafast laser pulses in the deep ultraviolet. J Chem Phys 2009; 130:134311. [DOI: 10.1063/1.3103486] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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43
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Kosma K, Trushin SA, Fuß W, Schmid WE. Cyclohexadiene ring opening observed with 13 fs resolution: coherent oscillations confirm the reaction path. Phys Chem Chem Phys 2009; 11:172-81. [DOI: 10.1039/b814201g] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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44
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Siewertsen R, Renth F, Temps F, Sönnichsen F. Parallel ultrafast E–C ring closure and E–Z isomerisation in a photochromic furylfulgide studied by femtosecond time-resolved spectroscopy. Phys Chem Chem Phys 2009; 11:5952-61. [DOI: 10.1039/b821344e] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Tomasello G, Ogliaro F, Bearpark MJ, Robb MA, Garavelli M. Modeling the Photophysics and Photochromic Potential of 1,2-Dihydronaphthalene (DHN): A Combined CASPT2//CASSCF-Topological and MMVB-Dynamical Investigation. J Phys Chem A 2008; 112:10096-107. [DOI: 10.1021/jp802613m] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gaia Tomasello
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, Via Selmi 2, I-40126 Bologna, Italy, Equipe de Chimie et Biochimie Théoriques, UMR 7565 - CNRS, Université Henri Poincaré, Nancy 1, BP 239, 54506 Vandoeuvre-lès-Nancy Cedex, France, and Department of Chemistry, Imperial College London, London SW7 2AZ U.K
| | - Francois Ogliaro
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, Via Selmi 2, I-40126 Bologna, Italy, Equipe de Chimie et Biochimie Théoriques, UMR 7565 - CNRS, Université Henri Poincaré, Nancy 1, BP 239, 54506 Vandoeuvre-lès-Nancy Cedex, France, and Department of Chemistry, Imperial College London, London SW7 2AZ U.K
| | - Michael J. Bearpark
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, Via Selmi 2, I-40126 Bologna, Italy, Equipe de Chimie et Biochimie Théoriques, UMR 7565 - CNRS, Université Henri Poincaré, Nancy 1, BP 239, 54506 Vandoeuvre-lès-Nancy Cedex, France, and Department of Chemistry, Imperial College London, London SW7 2AZ U.K
| | - Michael A. Robb
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, Via Selmi 2, I-40126 Bologna, Italy, Equipe de Chimie et Biochimie Théoriques, UMR 7565 - CNRS, Université Henri Poincaré, Nancy 1, BP 239, 54506 Vandoeuvre-lès-Nancy Cedex, France, and Department of Chemistry, Imperial College London, London SW7 2AZ U.K
| | - Marco Garavelli
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, Via Selmi 2, I-40126 Bologna, Italy, Equipe de Chimie et Biochimie Théoriques, UMR 7565 - CNRS, Université Henri Poincaré, Nancy 1, BP 239, 54506 Vandoeuvre-lès-Nancy Cedex, France, and Department of Chemistry, Imperial College London, London SW7 2AZ U.K
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46
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Carroll EC, White JL, Florean AC, Bucksbaum PH, Sension RJ. Multiphoton Control of the 1,3-Cyclohexadiene Ring-Opening Reaction in the Presence of Competing Solvent Reactions. J Phys Chem A 2008; 112:6811-22. [DOI: 10.1021/jp8013404] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Elizabeth C. Carroll
- FOCUS Center, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109-1040
| | - James L. White
- FOCUS Center, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109-1040
| | - Andrei C. Florean
- FOCUS Center, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109-1040
| | - Philip H. Bucksbaum
- FOCUS Center, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109-1040
| | - Roseanne J. Sension
- FOCUS Center, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109-1040
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47
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Nonadiabatic Chemical Dynamics: Comprehension and Control of Dynamics, and Manifestation of Molecular Functions. ADVANCES IN CHEMICAL PHYSICS 2008. [DOI: 10.1002/9780470259474.ch3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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48
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Balss KM, Llanos G, Papandreou G, Maryanoff CA. Quantitative spatial distribution of sirolimus and polymers in drug-eluting stents using confocal Raman microscopy. J Biomed Mater Res A 2008; 85:258-70. [PMID: 17876804 DOI: 10.1002/jbm.a.31535] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Raman spectroscopy was used to differentiate each component found in the CYPHER Sirolimus-eluting Coronary Stent. The unique spectral features identified for each component were then used to develop three separate calibration curves to describe the solid phase distribution found on drug-polymer coated stents. The calibration curves were obtained by analyzing confocal Raman spectral depth profiles from a set of 16 unique formulations of drug-polymer coatings sprayed onto stents and planar substrates. The sirolimus model was linear from 0 to 100 wt % of drug. The individual polymer calibration curves for poly(ethylene-co-vinyl acetate) [PEVA] and poly(n-butyl methacrylate) [PBMA] were also linear from 0 to 100 wt %. The calibration curves were tested on three independent drug-polymer coated stents. The sirolimus calibration predicted the drug content within 1 wt % of the laboratory assay value. The polymer calibrations predicted the content within 7 wt % of the formulation solution content. Attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectra from five formulations confirmed a linear response to changes in sirolimus and polymer content.
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Affiliation(s)
- K M Balss
- Cordis Corporation, a Johnson & Johnson Company, Welsh and McKean Roads, Spring House, Pennsylvania 19477, USA.
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49
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Koller FO, Schreier WJ, Schrader TE, Malkmus S, Schulz C, Dietrich S, Rück-Braun K, Braun M. Ultrafast Ring-Closure Reaction of Photochromic Indolylfulgimides Studied with UV-Pump−IR-Probe Spectroscopy. J Phys Chem A 2007; 112:210-4. [DOI: 10.1021/jp073545p] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Florian O. Koller
- BioMolekulare Optik, Department für Physik, Munich-Centre for Advanced Photonics, Ludwig-Maximilians-Universität München, Oettingenstr. 67, D-80538 München, Germany, and Institut für Chemie, Technische Universität Berlin, Str. d. 17. Juni 135, D-10623 Berlin, Germany
| | - Wolfgang J. Schreier
- BioMolekulare Optik, Department für Physik, Munich-Centre for Advanced Photonics, Ludwig-Maximilians-Universität München, Oettingenstr. 67, D-80538 München, Germany, and Institut für Chemie, Technische Universität Berlin, Str. d. 17. Juni 135, D-10623 Berlin, Germany
| | - Tobias E. Schrader
- BioMolekulare Optik, Department für Physik, Munich-Centre for Advanced Photonics, Ludwig-Maximilians-Universität München, Oettingenstr. 67, D-80538 München, Germany, and Institut für Chemie, Technische Universität Berlin, Str. d. 17. Juni 135, D-10623 Berlin, Germany
| | - Stephan Malkmus
- BioMolekulare Optik, Department für Physik, Munich-Centre for Advanced Photonics, Ludwig-Maximilians-Universität München, Oettingenstr. 67, D-80538 München, Germany, and Institut für Chemie, Technische Universität Berlin, Str. d. 17. Juni 135, D-10623 Berlin, Germany
| | - Christine Schulz
- BioMolekulare Optik, Department für Physik, Munich-Centre for Advanced Photonics, Ludwig-Maximilians-Universität München, Oettingenstr. 67, D-80538 München, Germany, and Institut für Chemie, Technische Universität Berlin, Str. d. 17. Juni 135, D-10623 Berlin, Germany
| | - Steffen Dietrich
- BioMolekulare Optik, Department für Physik, Munich-Centre for Advanced Photonics, Ludwig-Maximilians-Universität München, Oettingenstr. 67, D-80538 München, Germany, and Institut für Chemie, Technische Universität Berlin, Str. d. 17. Juni 135, D-10623 Berlin, Germany
| | - Karola Rück-Braun
- BioMolekulare Optik, Department für Physik, Munich-Centre for Advanced Photonics, Ludwig-Maximilians-Universität München, Oettingenstr. 67, D-80538 München, Germany, and Institut für Chemie, Technische Universität Berlin, Str. d. 17. Juni 135, D-10623 Berlin, Germany
| | - Markus Braun
- BioMolekulare Optik, Department für Physik, Munich-Centre for Advanced Photonics, Ludwig-Maximilians-Universität München, Oettingenstr. 67, D-80538 München, Germany, and Institut für Chemie, Technische Universität Berlin, Str. d. 17. Juni 135, D-10623 Berlin, Germany
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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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