1
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Youngworth R, Roux B. Simulating the Fluorescence of the Locally Excited State of DMABN in Solvents of Different Polarities. J Phys Chem B 2024; 128:172-183. [PMID: 38113445 DOI: 10.1021/acs.jpcb.3c02975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
4-(N,N-Dimethylamino)benzonitrile (DMABN) is a luminescent probe that can be used for tracking changes in the surrounding solvent due to the large change in polarity between its ground and excited states. An important characteristic of DMABN is that it exhibits dual fluorescence with two different emission energies that can be monitored, allowing for better characterization of the surrounding system. The first excited state is called the locally excited (LE) state and is characterized by the movement of charge over the conjugated ring structure. In nonpolar solvents and in the gas phase, the fluorescence of DMABN is entirely attributed to the transition from the near-planar LE state. In more polar environments, emission occurs from both the LE and a second excited state, corresponding to a twisted intramolecular charge-transfer (ICT) structure. For the sake of simplicity, this work considers transitions between only the ground and LE state. Molecular mechanical force field models of DMABN in its ground and LE states have been developed to investigate the sensitivity of the LE state to the polarity of the solvent. Both nonpolarizable and polarizable force fields were developed to simulate the molecule in a series of 10 different solvents of different polarities. The calculated Stokes shift of DMABN increases with increasing orientation polarizability of the surrounding solvent, which is the expected trend, as seen in experimental studies.
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Affiliation(s)
- Rachael Youngworth
- Department of Chemistry, The University of Chicago, 5735 S Ellis Avenue, Chicago, Illinois 60637, United States
| | - Benoît Roux
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois 60637, United States
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2
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Das A, Bhattacharyya S, Rohwer EJ, Gazzetto M, Cannizzo A, Rothlisberger U, Feurer T. Control of Excited State Charge Transfer Dynamics of DMABN in Deep Eutectic Solvent: Involvement of the Partially Twisted Intermediate State. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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3
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Kochman MA, Durbeej B, Kubas A. Simulation and Analysis of the Transient Absorption Spectrum of 4-( N, N-Dimethylamino)benzonitrile (DMABN) in Acetonitrile. J Phys Chem A 2021; 125:8635-8648. [PMID: 34550700 PMCID: PMC8503879 DOI: 10.1021/acs.jpca.1c06166] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/03/2021] [Indexed: 12/17/2022]
Abstract
4-(N,N-Dimethylamino)benzonitrile (DMABN) is a well-known model compound for dual fluorescence-in sufficiently polar solvents, it exhibits two distinct fluorescence emission bands. The interpretation of its transient absorption (TA) spectrum in the visible range is the subject of a long-standing controversy. In the present study, we resolve this issue by calculating the TA spectrum on the basis of nonadiabatic molecular dynamics simulations. An unambiguous assignment of spectral signals to specific excited-state structures is achieved by breaking down the calculated spectrum into contributions from twisted and nontwisted molecular geometries. In particular, the much-discussed excited-state absorption band near 1.7 eV (ca. 700 nm) is attributed to the near-planar locally excited (LE) minimum on the S1 state. On the technical side, our study demonstrates that the second-order approximate coupled cluster singles and doubles (CC2) method can be used successfully to calculate the TA spectra of moderately large organic molecules, provided that the system in question does not approach a crossing between the lowest excited state and the singlet ground state within the time frame of the simulation.
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Affiliation(s)
- Michał Andrzej Kochman
- Institute
of Physical Chemistry, Polish Academy of
Sciences, Ul. Marcina Kasprzaka 44/52, 01-224 Warszawa, Poland
| | - Bo Durbeej
- Division
of Theoretical Chemistry, Department of Physics, Chemistry and Biology
(IFM), Linköping University, 581 83 Linköping, Sweden
| | - Adam Kubas
- Institute
of Physical Chemistry, Polish Academy of
Sciences, Ul. Marcina Kasprzaka 44/52, 01-224 Warszawa, Poland
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4
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Sun S, Qin C, Liu H, Jiang C. Excitation wavelength dependent ICT character and ISC efficiency in a photocleavage agent of 1-aminoanthraquinone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 234:118200. [PMID: 32172187 DOI: 10.1016/j.saa.2020.118200] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 02/12/2020] [Accepted: 02/26/2020] [Indexed: 06/10/2023]
Abstract
Anthraquinone derivatives have been widely used as photocleavage agents and dyes. Here, photoinduced excited state intramolecular charge transfer (ICT) dynamics of 1-aminoanthraquinone in ethanol are studied by femtosecond transient absorption (fs-TA) spectroscopy and quantum chemical (QC) calculations. Four decay associated difference spectra and corresponding lifetime components were obtained by singular value decomposition and global fitting analysis from the fs-TA spectra. The QC calculations prove that the S1 state has obvious ICT character. Planar ICT (PICT) and twisted ICT (TICT) reaction coordinates are observed. On the PICT coordinate, vibrational relaxation (VR) and intersystem crossing (ISC) processes are observed. The ISC efficiency is dependent on excitation wavelength, which elucidates that T'2 state participates in the ISC process on a higher-level than the S'1 state. On the TICT coordinate, the TICT process is dependent on excitation wavelength, which elucidates a direct experimental evidence of an energy barrier in excited state TICT potential energy.
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Affiliation(s)
- Simei Sun
- School of Physics, Henan Normal University, Xinxiang 453007, China; Huangshi Key Laboratory of Photoelectric Technology and Materials, College of Physics and Electronic Science, Hubei Normal University, Huangshi 435002, China
| | - Chaochao Qin
- School of Physics, Henan Normal University, Xinxiang 453007, China; Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, Henan Normal University, Xinxiang 453007, China.
| | - Hua Liu
- School of Physics, Henan Normal University, Xinxiang 453007, China; Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, Henan Normal University, Xinxiang 453007, China
| | - Chao Jiang
- Huangshi Key Laboratory of Photoelectric Technology and Materials, College of Physics and Electronic Science, Hubei Normal University, Huangshi 435002, China
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5
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Escamilla PR, Shen Y, Zhang Q, Hernandez DS, Howard CJ, Qian X, Filonov DY, Kinev AV, Shear JB, Anslyn EV, Yang Y. 2-Amino-3'-dialkylaminobiphenyl-based fluorescent intracellular probes for nitric oxide surrogate N 2O 3. Chem Sci 2020; 11:1394-1403. [PMID: 34123264 PMCID: PMC8148321 DOI: 10.1039/c9sc04304g] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/07/2019] [Indexed: 12/12/2022] Open
Abstract
Fluorescent probes for nitric oxide (NO), or more frequently for its oxidized surrogate dinitrogen trioxide (N2O3), have enabled scientists to study the contributions of this signaling molecule to many physiological processes. Seeking to improve upon limitations of other probes, we have developed a family of fluorescent probes based on a 2-amino-3'-dialkylaminobiphenyl core. This core condenses with N2O3 to form benzo[c]cinnoline structures, incorporating the analyte into the newly formed fluorophore, which results in product fluorescence with virtually no background contribution from the initial probe. We varied the substituents in the core in order to optimize both the reactivity of the probes with N2O3 and their cinnoline products' fluorescence wavelengths and brightness. The top candidates were then applied to cultured cells to verify that they could respond to NO within cellular milieus, and the top performer, NO530, was compared with a "gold standard" commercial probe, DAF-FM, in a macrophage-derived cell line, RAW 264.7, stimulated to produce NO. NO530 demonstrated similar or better sensitivity and higher selectivity for NO than DAF, making it an attractive potential alternative for NO tracking in various applications.
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Affiliation(s)
| | - Yanming Shen
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology Meilong Road 130 Shanghai 200237 China
| | - Quanjuan Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology Meilong Road 130 Shanghai 200237 China
| | - Derek S Hernandez
- Department of Chemistry, University of Texas at Austin Austin Texas USA
| | - Cecil J Howard
- Department of Chemistry, University of Texas at Austin Austin Texas USA
| | - Xuhong Qian
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology Meilong Road 130 Shanghai 200237 China
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology Meilong Road 130 Shanghai 200237 China
| | | | | | - Jason B Shear
- Department of Chemistry, University of Texas at Austin Austin Texas USA
| | - Eric V Anslyn
- Department of Chemistry, University of Texas at Austin Austin Texas USA
| | - Youjun Yang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology Meilong Road 130 Shanghai 200237 China
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology Meilong Road 130 Shanghai 200237 China
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6
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Modulation of diarylethene fluorescence by photochromic switching and solvent polarity. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.09.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Maschietto F, Sanz García J, Campetella M, Ciofini I. Using density based indexes to characterize excited states evolution. J Comput Chem 2019; 40:650-656. [PMID: 30549077 DOI: 10.1002/jcc.25750] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 09/10/2018] [Accepted: 09/13/2018] [Indexed: 12/24/2022]
Abstract
With the aim of offering new computational tools helping in the description of photochemical reactions and phenomena occurring at the excited state, we present in this work the capability of a density based index (Π) in locating decay channels from higher to lower excited states. The Π index, previously applied to disclose non-radiative decay channels from the first excited state to the ground state, is very simple in its formulation and can be evaluated, practically with no extra computational cost, and coupled to any quantum method able to provide excited states densities. Indeed, this index relies only on the knowledge of energetics and electron densities of the different electronic states involved in the decay. In the present work, we show the proficiency of the Π index in the general case of decay between excited states by applying it to two model systems well characterized both theoretically and experimentally. In both cases, this descriptor was successful in spotting the regions where excited states are more likely to decay, thus suggesting its potential interest for further application in the design of new compounds. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Federica Maschietto
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris, F-75005, Paris, France
| | - Juan Sanz García
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris, F-75005, Paris, France
| | - Marco Campetella
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris, F-75005, Paris, France
| | - Ilaria Ciofini
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris, F-75005, Paris, France
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8
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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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9
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Rajak K, Ghosh A, Mahapatra S. Photophysics of phenol and pentafluorophenol: The role of nonadiabaticity in the optical transition to the lowest bright 1ππ* state. J Chem Phys 2018; 148:054301. [DOI: 10.1063/1.5015986] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Karunamoy Rajak
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - Arpita Ghosh
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - S. Mahapatra
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
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10
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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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11
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Szyszkowska M, Bylińska I, Wiczk W. Influence of an electron-acceptor substituent type on the photophysical properties of unsymmetrically substituted diphenylacetylene. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.03.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Segado M, Gómez I, Reguero M. Intramolecular charge transfer in aminobenzonitriles and tetrafluoro counterparts: fluorescence explained by competition between low-lying excited states and radiationless deactivation. Part I: A mechanistic overview of the parent system ABN. Phys Chem Chem Phys 2016; 18:6861-74. [DOI: 10.1039/c5cp04690d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The simplicity of the fluorescence pattern of ABN is in fact the outcome of an intricate interplay between locally excited and charge transfer excited states.
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Affiliation(s)
- Mireia Segado
- Departament de Química Física i Inorgànica
- Facultat de Química
- Universitat Rovira i Virgili
- Tarragona
- Spain
| | - Isabel Gómez
- Departament de Química Física i Inorgànica
- Facultat de Química
- Universitat Rovira i Virgili
- Tarragona
- Spain
| | - Mar Reguero
- Departament de Química Física i Inorgànica
- Facultat de Química
- Universitat Rovira i Virgili
- Tarragona
- Spain
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13
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Segado M, Mercier Y, Gómez I, Reguero M. Intramolecular charge transfer in aminobenzonitriles and tetrafluoro counterparts: fluorescence explained by competition between low lying excited states and radiationless deactivation. Part II: influence of substitution on luminescence patterns. Phys Chem Chem Phys 2016; 18:6875-84. [DOI: 10.1039/c5cp04693a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Same fluorescence paterns, diferent topographies of excited states.
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Affiliation(s)
- Mireia Segado
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007-Tarragona
- Spain
| | - Yannick Mercier
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007-Tarragona
- Spain
| | - Isabel Gómez
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007-Tarragona
- Spain
| | - Mar Reguero
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007-Tarragona
- Spain
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14
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Georgieva I, Aquino AJA, Plasser F, Trendafilova N, Köhn A, Lischka H. Intramolecular Charge-Transfer Excited-State Processes in 4-(N,N-Dimethylamino)benzonitrile: The Role of Twisting and the πσ* State. J Phys Chem A 2015; 119:6232-43. [PMID: 25989536 PMCID: PMC4476306 DOI: 10.1021/acs.jpca.5b03282] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
![]()
The
structural processes leading to dual fluorescence of 4-(dimethylamino)benzonitrile
in the gas phase and in acetonitrile solvent were investigated using
a combination of multireference configuration interaction (MRCI) and
the second-order algebraic diagrammatic construction (ADC(2)) methods.
Solvent effects were included on the basis of the conductor-like screening
model. The MRCI method was used for computing the nonadiabatic interaction
between the two lowest excited ππ* states (S2(La, CT) and S1(Lb, LE)) and the
corresponding minimum on the crossing seam (MXS) whereas the ADC(2)
calculations were dedicated to assessing the role of the πσ*
state. The MXS structure was found to have a twisting angle of ∼50°.
The branching space does not contain the twisting motion of the dimethylamino
group and thus is not directly involved in the deactivation process
from S2 to S1. Polar solvent effects are not
found to have a significant influence on this situation. Applying Cs symmetry restrictions, the ADC(2) calculations
show that CCN bending leads to a strong stabilization and to significant
charge transfer (CT). Nevertheless, this structure is not a minimum
but converts to the local excitation (LE) structure on releasing the
symmetry constraint. These findings suggest that the main role in
the dynamics is played by the nonadiabatic interaction of the LE and
CT states and that the main source for the dual fluorescence is the
twisted internal charge-transfer state in addition to the LE state.
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Affiliation(s)
- Ivelina Georgieva
- †Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Adélia J A Aquino
- ‡Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States.,§Institute for Theoretical Chemistry, University of Vienna, A-1090 Vienna, Austria
| | - Felix Plasser
- §Institute for Theoretical Chemistry, University of Vienna, A-1090 Vienna, Austria
| | - Natasha Trendafilova
- †Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Andreas Köhn
- ∥Institute for Theoretical Chemistry, University of Stuttgart, 70569 Stuttgart, Germany
| | - Hans Lischka
- ‡Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States.,§Institute for Theoretical Chemistry, University of Vienna, A-1090 Vienna, Austria
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15
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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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16
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Zgierski MZ, Lim EC, Fujiwara T. Intramolecular charge transfer in di-tert-butylaminobenzonitriles and 2,4,6-tricyanoanilines: A computational TDDFT study. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.02.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Segarra-Martí J, Coto PB. A theoretical study of the intramolecular charge transfer in 4-(dimethylamino)benzethyne. Phys Chem Chem Phys 2014; 16:25642-8. [DOI: 10.1039/c4cp03436h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The intramolecular charge transfer process in DMABE is investigated using multireference perturbation theory methods.
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Affiliation(s)
| | - Pedro B. Coto
- Institut für Theoretische Physik
- Theoretische Festkörperphysik
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- Erlangen D-91058, Germany
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18
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Lunkenheimer B, Köhn A. Solvent Effects on Electronically Excited States Using the Conductor-Like Screening Model and the Second-Order Correlated Method ADC(2). J Chem Theory Comput 2012; 9:977-94. [DOI: 10.1021/ct300763v] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bernd Lunkenheimer
- Institut für Physikalische
Chemie, Johannes Gutenberg-Universität, 55099 Mainz,
Germany
| | - Andreas Köhn
- Institut für Physikalische
Chemie, Johannes Gutenberg-Universität, 55099 Mainz,
Germany
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19
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Rhinehart JM, Challa JR, McCamant DW. Multimode Charge-Transfer Dynamics of 4-(Dimethylamino)benzonitrile Probed with Ultraviolet Femtosecond Stimulated Raman Spectroscopy. J Phys Chem B 2012; 116:10522-34. [DOI: 10.1021/jp3020645] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Justin M. Rhinehart
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
| | - J. Reddy Challa
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
| | - David W. McCamant
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
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20
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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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21
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Perrier A, Aloïse S, Pawlowska Z, Sliwa M, Maurel F, Abe J. Photoinduced intramolecular charge transfer process of betaine pyridinium: A theoretical spectroscopic study. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.09.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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22
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Zgierski MZ, Fujiwara T, Lim EC. Coupled Electron and Proton Transfer Processes in 4-Dimethylamino-2-hydroxy-benzaldehyde. J Phys Chem A 2011; 115:10009-17. [DOI: 10.1021/jp203009j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marek Z. Zgierski
- Steacie Institute for Molecular Science, National Research Council of Canada, Ottawa, K1A 0R6 Canada
| | - Takashige Fujiwara
- Department of Physics, The Ohio State University, Columbus, Ohio 43210-1117, United States
| | - Edward C. Lim
- Department of Chemistry and The Center for Laser and Optical Spectroscopy, The University of Akron, Akron, Ohio 44325-3601, United States
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Fujiwara T, Zgierski MZ, Lim EC. The role of the πσ* state in intramolecular charge transfer of 4-(dimethylamino)benzonitrile. Phys Chem Chem Phys 2011; 13:6779-83. [DOI: 10.1039/c0cp02706e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fan W, Tan D, Deng W. Theoretical investigation of triphenylamine dye/titanium dioxide interface for dye-sensitized solar cells. Phys Chem Chem Phys 2011; 13:16159-67. [DOI: 10.1039/c1cp21308c] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Fujiwara T, Zgierski MZ, Lim EC. Combined Experimental and Computational Study of Intramolecular Charge Transfer In p-N,N-Dimethylamino-p′-cyano-diphenylacetylene. J Phys Chem A 2010; 115:586-92. [DOI: 10.1021/jp109674t] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takashige Fujiwara
- Department of Chemistry and The Center for Laser and Optical Spectroscopy, The University of Akron, Akron, Ohio 44325-3601, United States
| | - Marek Z. Zgierski
- Steacie Institute for Molecular Science, National Research Council of Canada, Ottawa, K1A 0R6 Canada
| | - Edward C. Lim
- Department of Chemistry and The Center for Laser and Optical Spectroscopy, The University of Akron, Akron, Ohio 44325-3601, United States
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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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Galván IF, Martín ME, Aguilar MA. Theoretical Study of the Dual Fluorescence of 4-(N,N-Dimethylamino)benzonitrile in Solution. J Chem Theory Comput 2010; 6:2445-54. [DOI: 10.1021/ct9006713] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ignacio Fdez. Galván
- Química Física, Edif. José María Viguera Lobo, Universidad de Extremadura, Avda. de Elvas s/n, 06071 Badajoz, Spain
| | - M. Elena Martín
- Química Física, Edif. José María Viguera Lobo, Universidad de Extremadura, Avda. de Elvas s/n, 06071 Badajoz, Spain
| | - Manuel A. Aguilar
- Química Física, Edif. José María Viguera Lobo, Universidad de Extremadura, Avda. de Elvas s/n, 06071 Badajoz, Spain
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Rhinehart JM, Mehlenbacher RD, McCamant D. Probing the Charge Transfer Reaction Coordinate of 4-(Dimethylamino)benzonitrile with Femtosecond Stimulated Raman Spectroscopy. J Phys Chem B 2010; 114:14646-56. [DOI: 10.1021/jp1023982] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Justin M. Rhinehart
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216
| | | | - David McCamant
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216
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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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Zgierski MZ, Fujiwara T, Lim EC. Role of the pisigma* state in molecular photophysics. Acc Chem Res 2010; 43:506-17. [PMID: 20078111 DOI: 10.1021/ar9002043] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Photosynthesis, which depends on light-driven energy and electron transfer in assemblies of porphyrins, chlorophylls, and carotenoids, is just one example of the many complex natural systems of photobiology. A fuller understanding of the spectroscopy and photophysics of simple aromatic molecules is central to elucidating photochemical processes in the more sophisticated assemblies of photobiology. Moreover, developing a better grasp of the photophysics of simple aromatic molecules will also enhance our ability to create and improve practical applications in photochemical energy conversion, molecular nanophotonics, and molecular electronics. In this Account, we present a concerted experimental and theoretical study of aromatic ethynes, aromatic nitriles, and fluorinated benzenes, illustrating the important roles that the low-lying pisigma* state plays in the electronic relaxation of these aromatic compounds. Diphenylacetylene, 4-dialkylaminobenzonitriles, 4-dialkylaminobenzethynes, and fluorinated benzenes exhibit fluorescence that strongly quenches as the excitation energy is increased for gas-phase systems and at elevated temperatures in solution. Much of this interesting photophysical behavior can be attributed to the presence of a dark intermediate state that crosses the fluorescent pipi* state. Our quantum chemistry calculations, as well as time-resolved laser spectroscopies, indicate that this dark intermediate state is the pisigma* state that arises from the promotion of an electron from the pi orbital of the phenyl ring to the sigma* orbital localized in the C[triple bond]X group (where X is CH and N) or on the C-X group (where X is a halogen). These crossings not only lead to the strong excitation energy and temperature dependence of fluorescence but also induce highly interesting pisigma*-mediated intramolecular charge transfer in 4-dialkylaminobenzonitriles. Most previous studies on the excited-state dynamics of organic molecules have examined aromatic hydrocarbons, nitrogen heterocycles, aromatic carbonyl compounds, and polyenes, which have low-lying excited states of pipi* character (hydrocarbons and polyenes) or npi* and pipi* character (carbonyls and N-heterocycles). These studies have revealed important involvement of selection rules (promoting vibrational modes and spin-orbit coupling) and Franck-Condon factors for radiationless transitions, which have important effects on photophysical properties. The recent experimental and time-dependent density functional theory (TDDFT) calculations of aromatic ethynes, nitriles, and perfluorinated benzenes described in this Account demonstrate the importance of the bound excited state of a pisigma* configuration in these molecules.
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Affiliation(s)
- Marek Z. Zgierski
- Steacie Institute for Molecular Science, National Research Council of Canada, Ottawa K1A 0R6, Canada and
| | - Takashige Fujiwara
- Department of Chemistry and The Center for Laser and Optical Spectroscopy, The University of Akron, Akron, Ohio 44325-3601
| | - Edward C. Lim
- Department of Chemistry and The Center for Laser and Optical Spectroscopy, The University of Akron, Akron, Ohio 44325-3601
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Peng B, Yang S, Li L, Cheng F, Chen J. A density functional theory and time-dependent density functional theory investigation on the anchor comparison of triarylamine-based dyes. J Chem Phys 2010; 132:034305. [DOI: 10.1063/1.3292639] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [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 TA, Demeter A, Zachariasse KA. Intramolecular Charge Transfer with Fluorazene and N-Phenylpyrrole. J Phys Chem A 2009; 114:1621-32. [DOI: 10.1021/jp909682p] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sergey I. Druzhinin
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany, and Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences. P. O. Box 17, 1525 Budapest, Hungary
| | - Sergey A. Kovalenko
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany, and Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences. P. O. Box 17, 1525 Budapest, Hungary
| | - Tamara A. Senyushkina
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany, and Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences. P. O. Box 17, 1525 Budapest, Hungary
| | - Attila Demeter
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany, and Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences. P. O. Box 17, 1525 Budapest, Hungary
| | - Klaas A. Zachariasse
- Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und Photochemische Kinetik, 37070 Göttingen, Germany, Institut für Chemie, Humboldt Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany, and Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences. P. O. Box 17, 1525 Budapest, Hungary
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Zachariasse KA, Druzhinin SI, Kovalenko SA, Senyushkina T. Intramolecular charge transfer of 4-(dimethylamino)benzonitrile probed by time-resolved fluorescence and transient absorption: No evidence for two ICT states and a πσ∗ reaction intermediate. J Chem Phys 2009; 131:224313. [DOI: 10.1063/1.3270165] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Fujiwara T, Lee JK, Zgierski MZ, Lim EC. Intramolecular charge transfer in the excited state of 4-dimethylaminobenzaldehyde and 4-dimethylaminoacetophenone. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.09.053] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Gustavsson T, Coto PB, Serrano-Andrés L, Fujiwara T, Lim EC. Do fluorescence and transient absorption probe the same intramolecular charge transfer state of 4-(dimethylamino)benzonitrile? J Chem Phys 2009; 131:031101. [DOI: 10.1063/1.3173609] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Fujiwara T, Lee JK, Zgierski MZ, Lim EC. Photophysical and spectroscopic manifestations of the low-lying πσ* state of 4-(dimethylamino)benzethyne: solvent-polarity dependence of fluorescence and excited-state absorptions. Phys Chem Chem Phys 2009; 11:2475-9. [DOI: 10.1039/b820371g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zgierski MZ, Fujiwara T, Lim EC. Conical intersections and ultrafast intramolecular excited-state dynamics in nucleic acid bases and electron donor–acceptor molecules. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.06.024] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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