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Ampadu Boateng D, Word MD, Gutsev LG, Jena P, Tibbetts KM. Conserved Vibrational Coherence in the Ultrafast Rearrangement of 2-Nitrotoluene Radical Cation. J Phys Chem A 2019; 123:1140-1152. [DOI: 10.1021/acs.jpca.8b11723] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Derrick Ampadu Boateng
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Mi’Kayla D. Word
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Lavrenty G. Gutsev
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Puru Jena
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Katharine Moore Tibbetts
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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2
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Ampadu Boateng D, Tibbetts KM. Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization. J Vis Exp 2018. [PMID: 30124651 DOI: 10.3791/58263] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
We present a pump-probe method for preparing vibrational coherences in polyatomic radical cations and probing their ultrafast dynamics. By shifting the wavelength of the strong-field ionizing pump pulse from the commonly used 800 nm into the near-infrared (1200-1600 nm), the contribution of adiabatic electron tunneling to the ionization process increases relative to multiphoton absorption. Adiabatic ionization results in predominant population of the ground electronic state of the ion upon electron removal, which effectively prepares a coherent vibrational state ("wave packet") amenable to subsequent excitation. In our experiments, the coherent vibrational dynamics are probed with a weak-field 800 nm pulse and the time-dependent yields of dissociation products measured in a time-of-flight mass spectrometer. We present the measurements on the molecule dimethyl methylphosphonate (DMMP) to illustrate how using 1500 nm pulses for excitation enhances the amplitude of coherent oscillations in ion yields by a factor of 10 as compared to 800 nm pulses. This protocol may be implemented in existing pump-probe setups through the incorporation of an optical parametric amplifier (OPA) for wavelength conversion.
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Modesto-Costa L, Borges I. Discrete and continuum modeling of solvent effects in a twisted intramolecular charge transfer system: The 4-N,N-dimethylaminobenzonitrile (DMABN) molecule. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 201:73-81. [PMID: 29734107 DOI: 10.1016/j.saa.2018.04.064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/19/2018] [Accepted: 04/29/2018] [Indexed: 06/08/2023]
Abstract
The 4-N,N-dimethylaminobenzonitrile (DMABN) molecule is a prototypical system displaying twisted intramolecular (TICT) charge transfer effects. The ground and the first four electronic excited states (S1-S4) in gas phase and upon solvation were studied. Charge transfer values as function of the torsion angle between the donor group (dimethylamine) and the acceptor moiety (benzonitrile) were explicitly computed. Potential energy curves were also obtained. The algebraic diagrammatic construction method at the second-order [ADC(2)] ab initio wave function was employed. Three solvents of increased polarities (benzene, DMSO and water) were investigated using discrete (average solvent electrostatic configuration - ASEC) and continuum (conductor-like screening model - COSMO) models. The results for the S3 and S4 excited states and the S1-S4 charge transfer curves were not previously available in the literature. Electronic gas phase and solvent vertical spectra are in good agreement with previous theoretical and experimental results. In the twisted (90°) geometry the optical oscillator strengths have negligible values even for the S2 bright state. Potential energy curves show two distinct pairs of curves intersecting at decreasing angles or not crossing in the more polar solvents. Charge transfer and electric dipole values allowed the rationalization of these results. The former effects are mostly independent of the solvent model and polarity. Although COSMO and ASEC solvent models mostly lead to similar results, there is an important difference: some crossings of the excitation energy curves appear only in the ASEC solvation model, which has important implications to the photochemistry of DMABN.
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Affiliation(s)
- Lucas Modesto-Costa
- Departamento de Química, Instituto Militar de Engenharia, Praça General Tibúrcio, 80, 22290-270 Rio de Janeiro, Brazil.
| | - Itamar Borges
- Departamento de Química, Instituto Militar de Engenharia, Praça General Tibúrcio, 80, 22290-270 Rio de Janeiro, Brazil.
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4
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Rankine CD, Nunes JPF, Feixas TWBL, Young S, Wann DA. Structure of 4-(Dimethylamino)benzonitrile Using Gas Electron Diffraction: A New Lease of Life for the Only Gas Electron Diffractometer in the U.K. . J Phys Chem A 2018; 122:5656-5665. [PMID: 29870255 DOI: 10.1021/acs.jpca.8b03613] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The continued demand for gas-phase molecular structures has led to the recommissioning of a gas electron diffractometer, formerly housed at the University of Reading. The gas electron diffractometer, now the only one of its kind in the U.K., is currently housed at the University of York, where it is now used routinely to determine directly structures of isolated molecules in the gas phase. The instrument has been fitted with an air-heated nozzle assembly to increase the range of molecules accessible to study in the gas phase; the efficacy of this assembly is demonstrated in this article via the determination of the gas-phase structure of 4-(dimethylamino)benzonitrile (DMABN) at high temperature. A series of complementary theoretical calculations using the B2PLYP DFT functional of Grimme et al. with correlation-consistent basis sets of double, triple, and quadruple-ζ quality are also presented. The agreement between the experimental and theoretical structural parameters attests to the accuracy of the applied theoretical calculations and of our gas-phase structural solution.
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Affiliation(s)
- Conor D Rankine
- Department of Chemistry , University of York , Heslington, York YO10 5DD , U.K
| | - João Pedro F Nunes
- Department of Chemistry , University of York , Heslington, York YO10 5DD , U.K
| | | | - Stuart Young
- Department of Chemistry , University of York , Heslington, York YO10 5DD , U.K
| | - Derek A Wann
- Department of Chemistry , University of York , Heslington, York YO10 5DD , U.K
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5
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Yatsuhashi T, Nakashima N. Multiple ionization and Coulomb explosion of molecules, molecular complexes, clusters and solid surfaces. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2018. [DOI: 10.1016/j.jphotochemrev.2017.12.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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6
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Hao Q, Deng X, Long J, Wang Y, Abulimiti B, Zhang B. Real-time observation of cascaded electronic relaxation processes in p-Fluorotoluene. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 183:109-115. [PMID: 28441538 DOI: 10.1016/j.saa.2017.04.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 03/31/2017] [Accepted: 04/17/2017] [Indexed: 06/07/2023]
Abstract
Ultrafast electronic relaxation processes following two photoexcitation of 400nm in p-Fluorotoluene (pFT) have been investigated utilizing time-resolved photoelectron imaging coupled with time-resolved mass spectroscopy. Cascaded electronic relaxation processes started from the electronically excited S2 state are directly imaged in real time and well characterized by two distinct time constants of ~85±10fs and 2.4±0.3ps. The rapid component corresponds to the lifetime of the initially excited S2 state, including the structure relaxation from the Franck-Condon region to the conical intersection of S2/S1 and the subsequent internal conversion to the highly excited S1 state. While, the slower relaxation constant is attributed to the further internal conversion to the high levels of S0 from the secondarily populated S1 locating in the channel three region. Moreover, dynamical differences with benzene and toluene of analogous structures, including, specifically, the slightly slower relaxation rate of S2 and the evidently faster decay of S1, are also presented and tentatively interpreted as the substituent effects. In addition, photoelectron kinetic energy and angular distributions reveal the feature of accidental resonances with low-lying Rydberg states (the 3p, 4s and 4p states) during the multi-photon ionization process, providing totally unexpected but very interesting information for pFT.
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Affiliation(s)
- Qiaoli Hao
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xulan Deng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jinyou Long
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yanmei Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Bumaliya Abulimiti
- College of Physics and Electronic Engineering, Xinjiang Normal University, Urumqi 830054, PR China.
| | - Bing Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
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7
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Sun S, Mignolet B, Fan L, Li W, Levine RD, Remacle F. Nuclear Motion Driven Ultrafast Photodissociative Charge Transfer of the PENNA Cation: An Experimental and Computational Study. J Phys Chem A 2017; 121:1442-1447. [PMID: 28135094 DOI: 10.1021/acs.jpca.6b12310] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ultrafast nuclear driven charge transfer prior to dissociation is an important process in modular systems as was demonstrated experimentally in the bifunctional molecule 2-phenylethyl-N,N-dimethylamine (PENNA) in work by Lehr et al. ( J. Phys. Chem. A 2005 , 109 , 8074 ). The ultrafast dynamics of PENNA photoexcited to the three lowest electronic states of the cation (D0, D1, and D2) was studied using quantum chemistry and surface hoping. We show that a conical intersection, localized in the Franck-Condon region, between the D0 and the D1 states, leads to an ultrafast charge transfer, computed here to be on a time scale of 65 fs, between the phenyl and the amine charged subunits. On the D0 ground state, the dissociation proceeds on the 60 ps time scale through a 19 kcal/mol late barrier. The computed kinetic energy release is in good agreement with a new experimental measurement of PENNA ionization by an 800 nm 30 fs intense laser pulse.
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Affiliation(s)
- Shoutian Sun
- Department of Chemistry, B6c, University of Liege , B4000 Liege, Belgium
| | - Benoit Mignolet
- Department of Chemistry, B6c, University of Liege , B4000 Liege, Belgium
| | - Lin Fan
- Department of Chemistry, Wayne State University , Detroit, Michigan 48202, United States
| | - Wen Li
- Department of Chemistry, Wayne State University , Detroit, Michigan 48202, United States
| | - Raphael D Levine
- Crump Institute for Molecular Imaging and Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, and Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States.,The Fritz Haber Research Center for Molecular Dynamics, Institute of Chemistry, The Hebrew University of Jerusalem , 91904 Jerusalem, Israel
| | - Francoise Remacle
- Department of Chemistry, B6c, University of Liege , B4000 Liege, Belgium
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8
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Medders GR, Alguire EC, Jain A, Subotnik JE. Ultrafast Electronic Relaxation through a Conical Intersection: Nonadiabatic Dynamics Disentangled through an Oscillator Strength-Based Diabatization Framework. J Phys Chem A 2017; 121:1425-1434. [DOI: 10.1021/acs.jpca.6b12120] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gregory R. Medders
- Department
of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Ethan C. Alguire
- Department
of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Amber Jain
- Department
of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Joseph E. Subotnik
- Department
of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Stanford
PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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9
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Curchod BFE, Sisto A, Martínez TJ. Ab Initio Multiple Spawning Photochemical Dynamics of DMABN Using GPUs. J Phys Chem A 2017; 121:265-276. [DOI: 10.1021/acs.jpca.6b09962] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Basile F. E. Curchod
- Department
of Chemistry and the PULSE Institute, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Aaron Sisto
- Department
of Chemistry and the PULSE Institute, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Todd J. Martínez
- Department
of Chemistry and the PULSE Institute, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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10
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Du L, Lan Z. An On-the-Fly Surface-Hopping Program JADE for Nonadiabatic Molecular Dynamics of Polyatomic Systems: Implementation and Applications. J Chem Theory Comput 2016; 11:1360-74. [PMID: 26574348 DOI: 10.1021/ct501106d] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Nonadiabatic dynamics simulations have rapidly become an indispensable tool for understanding ultrafast photochemical processes in complex systems. Here, we present our recently developed on-the-fly nonadiabatic dynamics package, JADE, which allows researchers to perform nonadiabatic excited-state dynamics simulations of polyatomic systems at an all-atomic level. The nonadiabatic dynamics is based on Tully's surface-hopping approach. Currently, several electronic structure methods (CIS, TDHF, TDDFT(RPA/TDA), and ADC(2)) are supported, especially TDDFT, aiming at performing nonadiabatic dynamics on medium- to large-sized molecules. The JADE package has been interfaced with several quantum chemistry codes, including Turbomole, Gaussian, and Gamess (US). To consider environmental effects, the Langevin dynamics was introduced as an easy-to-use scheme into the standard surface-hopping dynamics. The JADE package is mainly written in Fortran for greater numerical performance and Python for flexible interface construction, with the intent of providing open-source, easy-to-use, well-modularized, and intuitive software in the field of simulations of photochemical and photophysical processes. To illustrate the possible applications of the JADE package, we present a few applications of excited-state dynamics for various polyatomic systems, such as the methaniminium cation, fullerene (C20), p-dimethylaminobenzonitrile (DMABN) and its primary amino derivative aminobenzonitrile (ABN), and 10-hydroxybenzo[h]quinoline (10-HBQ).
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Affiliation(s)
- Likai Du
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao, 266101 Shandong, People's Republic of China.,University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China.,The Qingdao Key Lab of Solar Energy Utilization and Energy Storage Technology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao, 266101 Shandong, People's Republic of China
| | - Zhenggang Lan
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao, 266101 Shandong, People's Republic of China.,University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China.,The Qingdao Key Lab of Solar Energy Utilization and Energy Storage Technology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao, 266101 Shandong, People's Republic of China
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11
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Branching and competition of ultrafast photochemical reactions of cyclooctatriene and bicyclooctadiene. Chem Phys 2015. [DOI: 10.1016/j.chemphys.2015.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Ovejas V, Montero R, Fernández-Fernández M, Longarte A. Tracking the Relaxation of 2,5-Dimethylpyrrole by Femtosecond Time-Resolved Photoelectron and Photoion Detection. J Phys Chem A 2015; 119:3355-65. [DOI: 10.1021/jp512133c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Virginia Ovejas
- Departamento de Química
Física, Universidad del País Vasco (UPV/EHU), Apart.
644, 48080 Bilbao, Spain
| | - Raúl Montero
- Departamento de Química
Física, Universidad del País Vasco (UPV/EHU), Apart.
644, 48080 Bilbao, Spain
| | - Marta Fernández-Fernández
- Departamento de Química
Física, Universidad del País Vasco (UPV/EHU), Apart.
644, 48080 Bilbao, Spain
| | - Asier Longarte
- Departamento de Química
Física, Universidad del País Vasco (UPV/EHU), Apart.
644, 48080 Bilbao, Spain
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13
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Gómez I, Castro PJ, Reguero M. Insight into the Mechanisms of Luminescence of Aminobenzonitrile and Dimethylaminobenzonitrile in Polar Solvents. An ab Initio Study. J Phys Chem A 2015; 119:1983-95. [DOI: 10.1021/acs.jpca.5b01421] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Isabel Gómez
- Departament
de Química
Física i Inorgànica, Universitat Rovira i Virgili, C.
Marcel·lí Domingo 1, 43007, Tarragona , Spain
| | - Pedro J. Castro
- Departament
de Química
Física i Inorgànica, Universitat Rovira i Virgili, C.
Marcel·lí Domingo 1, 43007, Tarragona , Spain
| | - Mar Reguero
- Departament
de Química
Física i Inorgànica, Universitat Rovira i Virgili, C.
Marcel·lí Domingo 1, 43007, Tarragona , Spain
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14
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Kochman MA, Tajti A, Morrison CA, Miller RJD. Early Events in the Nonadiabatic Relaxation Dynamics of 4-(N,N-Dimethylamino)benzonitrile. J Chem Theory Comput 2015; 11:1118-28. [DOI: 10.1021/ct5010609] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michał A. Kochman
- Max Planck Institute
for the Structure and Dynamics of Matter, Building 99 (CFEL), Luruper Chaussee 149, 22761 Hamburg, Hamburg, Germany
| | - Attila Tajti
- Institute
of Chemistry, Eötvös Loránd University, Budapest 1053, Hungary
| | - Carole A. Morrison
- School
of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, Scotland EH9 3FJ
| | - R. J. Dwayne Miller
- Max Planck Institute
for the Structure and Dynamics of Matter, Building 99 (CFEL), Luruper Chaussee 149, 22761 Hamburg, Hamburg, Germany
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15
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Montero R, Ovejas V, Fernández-Fernández M, Peralta Conde Á, Longarte A. Revisiting the relaxation dynamics of isolated pyrrole. J Chem Phys 2014; 141:014303. [DOI: 10.1063/1.4885722] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Raúl Montero
- Departamento de Química Física, Universidad del País Vasco (UPV/EHU), Apart. 644, 48080 Bilbao,
Spain
| | - Virginia Ovejas
- Departamento de Química Física, Universidad del País Vasco (UPV/EHU), Apart. 644, 48080 Bilbao,
Spain
| | - Marta Fernández-Fernández
- Departamento de Química Física, Universidad del País Vasco (UPV/EHU), Apart. 644, 48080 Bilbao,
Spain
| | - Álvaro Peralta Conde
- Centro de Láseres Pulsados (CLPU),
Edificio M3, Parque Científico, 37185 Villamayor, Spain
| | - Asier Longarte
- Departamento de Química Física, Universidad del País Vasco (UPV/EHU), Apart. 644, 48080 Bilbao,
Spain
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17
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Peralta Conde A, Ovejas V, Montero R, Castaño F, Longarte A. Influence of solvation on the indole photophysics: Ultrafast dynamics of indole–water clusters. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.01.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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18
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Aloïse S, Pawlowska Z, Ruckebusch C, Sliwa M, Dubois J, Poizat O, Buntinx G, Perrier A, Maurel F, Jacques P, Malval JP, Poisson L, Piani G, Abe J. A two-step ICT process for solvatochromic betaine pyridinium revealed by ultrafast spectroscopy, multivariate curve resolution, and TDDFT calculations. Phys Chem Chem Phys 2012; 14:1945-56. [DOI: 10.1039/c2cp22254j] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Montero R, Conde ÁP, Ovejas V, Martínez R, Castaño F, Longarte A. Ultrafast dynamics of aniline in the 294-234 nm excitation range: The role of the πσ* state. J Chem Phys 2011; 135:054308. [DOI: 10.1063/1.3615544] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Zachariasse KA, Druzhinin SI, Galievsky VA, Demeter A, Allonas X, Kovalenko SA, Senyushkina TA. Pentacyano-N,N-Dimethylaniline in the Excited State. Only Locally Excited State Emission, in Spite of the Large Electron Affinity of the Pentacyanobenzene Subgroup. J Phys Chem A 2010; 114:13031-9. [DOI: 10.1021/jp108804q] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Klaas A. Zachariasse
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Prospekt Nezavisimosti 68, 22072 Minsk, Belarus, Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, Département de Photochimie Générale, UMR CNRS 7525, Université de Haute Alsace, ENSCMu, 3 rue Alfred Werner, 68093
| | - Sergey I. Druzhinin
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Prospekt Nezavisimosti 68, 22072 Minsk, Belarus, Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, Département de Photochimie Générale, UMR CNRS 7525, Université de Haute Alsace, ENSCMu, 3 rue Alfred Werner, 68093
| | - Victor A. Galievsky
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Prospekt Nezavisimosti 68, 22072 Minsk, Belarus, Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, Département de Photochimie Générale, UMR CNRS 7525, Université de Haute Alsace, ENSCMu, 3 rue Alfred Werner, 68093
| | - Attila Demeter
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Prospekt Nezavisimosti 68, 22072 Minsk, Belarus, Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, Département de Photochimie Générale, UMR CNRS 7525, Université de Haute Alsace, ENSCMu, 3 rue Alfred Werner, 68093
| | - Xavier Allonas
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Prospekt Nezavisimosti 68, 22072 Minsk, Belarus, Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, Département de Photochimie Générale, UMR CNRS 7525, Université de Haute Alsace, ENSCMu, 3 rue Alfred Werner, 68093
| | - Sergey A. Kovalenko
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Prospekt Nezavisimosti 68, 22072 Minsk, Belarus, Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, Département de Photochimie Générale, UMR CNRS 7525, Université de Haute Alsace, ENSCMu, 3 rue Alfred Werner, 68093
| | - Tamara A. Senyushkina
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Prospekt Nezavisimosti 68, 22072 Minsk, Belarus, Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary, Département de Photochimie Générale, UMR CNRS 7525, Université de Haute Alsace, ENSCMu, 3 rue Alfred Werner, 68093
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Druzhinin SI, Mayer P, Stalke D, von Bülow R, Noltemeyer M, Zachariasse KA. Intramolecular Charge Transfer with 1-tert-Butyl-6-cyano-1,2,3,4-tetrahydroquinoline (NTC6) and Other Aminobenzonitriles. A Comparison of Experimental Vapor Phase Spectra and Crystal Structures with Calculations. J Am Chem Soc 2010; 132:7730-44. [DOI: 10.1021/ja101336n] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sergey I. Druzhinin
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, Department Chemie und Biochemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, Haus F, 81377 München, Germany, and Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Peter Mayer
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, Department Chemie und Biochemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, Haus F, 81377 München, Germany, and Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Dietmar Stalke
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, Department Chemie und Biochemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, Haus F, 81377 München, Germany, and Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Rixa von Bülow
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, Department Chemie und Biochemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, Haus F, 81377 München, Germany, and Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Mathias Noltemeyer
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, Department Chemie und Biochemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, Haus F, 81377 München, Germany, and Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Klaas A. Zachariasse
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, Department Chemie und Biochemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, Haus F, 81377 München, Germany, and Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
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Cirmi G, Brida D, Gambetta A, Piacenza M, Sala FD, Favaretto L, Cerullo G, Lanzani G. Observation and control of coherent torsional dynamics in a quinquethiophene molecule. Phys Chem Chem Phys 2010; 12:7917-23. [DOI: 10.1039/c000505c] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zoon PD, van Stokkum IHM, Parent M, Mongin O, Blanchard-Desce M, Brouwer AM. Fast photo-processes in triazole-based push–pull systems. Phys Chem Chem Phys 2010; 12:2706-15. [DOI: 10.1039/b921322h] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Kosma K, Trushin SA, Fuß W, Schmid WE, Schneider BMR. Photodissociation of group-6 hexacarbonyls: observation of coherent oscillations in an antisymmetric (pseudorotation) vibration in Mo(CO)5 and W(CO)5. Phys Chem Chem Phys 2010; 12:13197-214. [DOI: 10.1039/c0cp00731e] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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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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Trushin S, Kosma K, Fuß W, Schmid W. Wavelength-independent ultrafast dynamics and coherent oscillation of a metal–carbon stretch vibration in photodissociation of Cr(CO)6 in the region of 270–345nm. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2007.09.057] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Studzinski H, Zhang S, Wang Y, Temps F. Ultrafast nonradiative dynamics in electronically excited hexafluorobenzene by femtosecond time-resolved mass spectrometry. J Chem Phys 2008; 128:164314. [DOI: 10.1063/1.2907859] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Druzhinin SI, Kovalenko SA, Senyushkina T, Zachariasse KA. Dynamics of Ultrafast Intramolecular Charge Transfer with 1-tert-Butyl-6-cyano-1,2,3,4-tetrahydroquinoline (NTC6) in n-Hexane and Acetonitrile. J Phys Chem A 2007; 111:12878-90. [DOI: 10.1021/jp074983z] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sergey I. Druzhinin
- Spektroskopie und Photochemische Kinetik, Max-Planck-Institut für biophysikalische Chemie, 37070 Göttingen, Germany, and Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany
| | - Sergey A. Kovalenko
- Spektroskopie und Photochemische Kinetik, Max-Planck-Institut für biophysikalische Chemie, 37070 Göttingen, Germany, and Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany
| | - Tamara Senyushkina
- Spektroskopie und Photochemische Kinetik, Max-Planck-Institut für biophysikalische Chemie, 37070 Göttingen, Germany, and Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany
| | - Klaas A. Zachariasse
- Spektroskopie und Photochemische Kinetik, Max-Planck-Institut für biophysikalische Chemie, 37070 Göttingen, Germany, and Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany
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Demeter A, Mile V, Bérces T. Hydrogen Bond Formation between 4-(Dimethylamino)pyridine and Aliphatic Alcohols. J Phys Chem A 2007; 111:8942-9. [PMID: 17718545 DOI: 10.1021/jp072989i] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The photophysics of 4-(dimethylamino)pyridine (DMAP) has been investigated in different solvents in the presence of aliphatic and fluorinated aliphatic alcohols, respectively. For most systems, consecutive two-step hydrogen-bonded complex formation is observed in the presence of alcohols. Equilibrium constants are determined from UV spectroscopic results for the formation of singly and doubly complexed species. The resolved absorption and fluorescence spectra for the singly and doubly complexed DMAP are derived by means of the equilibrium constants. Exceptionally large hydrogen bond basicity values are found for the ground and singlet excited DMAP molecules. In n-hexane, as a consequence of complex formation, the intramolecular charge transfer (ICT) emission becomes dominant over of the locally excited fluorescence; the fluorescence and triplet yields increase considerably with complexation. In polar solvents, both the fluorescence and triplet yields of the complex are much smaller than that of the uncomplexed DMAP. The dipole moments derived for the singly complexed species from the Lippert-Mataga analysis are much larger than those of the uncomplexed molecules. However, for the relaxed ICT excited-state one obtains different dipole moments in apolar and polar solvents. This may be explained by a conformational change of the molecule in the ICT excited state from planar geometry in apolar solvent to the perpendicular structure (characterized with bigger dipole moment) in polar solvent.
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Affiliation(s)
- Attila Demeter
- Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, 1025 Budapest, Pusztaszeri u. 59-67, Hungary.
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