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Abiola TT, Rioux B, Toldo JM, Alarcan J, Woolley JM, Turner MAP, Coxon DJL, Telles do Casal M, Peyrot C, Mention MM, Buma WJ, Ashfold MNR, Braeuning A, Barbatti M, Stavros VG, Allais F. Towards developing novel and sustainable molecular light-to-heat converters. Chem Sci 2021; 12:15239-15252. [PMID: 34976344 PMCID: PMC8634993 DOI: 10.1039/d1sc05077j] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 10/18/2021] [Indexed: 12/18/2022] Open
Abstract
Light-to-heat conversion materials generate great interest due to their widespread applications, notable exemplars being solar energy harvesting and photoprotection. Another more recently identified potential application for such materials is in molecular heaters for agriculture, whose function is to protect crops from extreme cold weather and extend both the growing season and the geographic areas capable of supporting growth, all of which could help reduce food security challenges. To address this demand, a new series of phenolic-based barbituric absorbers of ultraviolet (UV) radiation has been designed and synthesised in a sustainable manner. The photophysics of these molecules has been studied in solution using femtosecond transient electronic and vibrational absorption spectroscopies, allied with computational simulations and their potential toxicity assessed by in silico studies. Following photoexcitation to the lowest singlet excited state, these barbituric absorbers repopulate the electronic ground state with high fidelity on an ultrafast time scale (within a few picoseconds). The energy relaxation pathway includes a twisted intramolecular charge-transfer state as the system evolves out of the Franck–Condon region, internal conversion to the ground electronic state, and subsequent vibrational cooling. These barbituric absorbers display promising light-to-heat conversion capabilities, are predicted to be non-toxic, and demand further study within neighbouring application-based fields. The synthesis and photophysical properties of phenolic barbiturics are reported. These molecules convert absorbed ultraviolet light to heat with high fidelity and may be suitable for inclusion in foliar sprays to boost crop protection and production.![]()
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Affiliation(s)
- Temitope T Abiola
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Benjamin Rioux
- URD Agro-Biotechnologies (ABI), CEBB, AgroParisTech 51110 Pomacle France
| | | | - Jimmy Alarcan
- Department of Food Safety, German Federal Institute for Risk Assessment Max-Dohrn-Str. 8-10 10589 Berlin Germany
| | - Jack M Woolley
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Matthew A P Turner
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK .,Department of Physics, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Daniel J L Coxon
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK .,Department of Physics, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK.,EPSRC Centre for Doctoral Training in Diamond Science and Technology UK
| | | | - Cédric Peyrot
- URD Agro-Biotechnologies (ABI), CEBB, AgroParisTech 51110 Pomacle France
| | - Matthieu M Mention
- URD Agro-Biotechnologies (ABI), CEBB, AgroParisTech 51110 Pomacle France
| | - Wybren J Buma
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam Amsterdam The Netherlands.,Institute for Molecules and Materials, FELIX Laboratory, Radboud University 6525 ED Nijmegen The Netherlands
| | - Michael N R Ashfold
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Albert Braeuning
- Department of Food Safety, German Federal Institute for Risk Assessment Max-Dohrn-Str. 8-10 10589 Berlin Germany
| | - Mario Barbatti
- Aix Marseille Université, CNRS, ICR Marseille France .,Institut Universitaire de France 75231 Paris France
| | - Vasilios G Stavros
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Florent Allais
- URD Agro-Biotechnologies (ABI), CEBB, AgroParisTech 51110 Pomacle France
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Nonlinear Optical Properties of Pyrene Based Fluorescent Hemicurcuminoid and their BF 2 Complexes -Spectroscopic and DFT Studies. J Fluoresc 2017; 27:1777-1792. [PMID: 28550418 DOI: 10.1007/s10895-017-2116-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 05/08/2017] [Indexed: 10/19/2022]
Abstract
The acetyl acetone and benzoyl acetone pyrene based difluoroboron scaffolds and their respective decomplexed congeners were investigated for their nonlinear optical properties in various microenvironment. The geometries of the chromophore were optimized and electronic excitation properties were estimated using time dependant density functional theory. The vertical excitation properties were found to be complimentary to the experimental results. Nolinear optical properties were evaluated using solvatochromism and Density Functional Theory. The experimental nonlinear optical properties well correlated using Mulliken Hush parameters and also compared with calculated values. CAM-B3LYP results were found to be superior over the B3LYP and BHandHLYP methods. The positive solvatochromism in emission were well explained by multilinear regression and bond length alteration.
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Coumarin-Pyrazole Hybrid with Red Shifted ESIPT Emission and AIE Characteristics - a Comprehensive Study. J Fluoresc 2017; 27:1687-1707. [DOI: 10.1007/s10895-017-2106-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Accepted: 04/26/2017] [Indexed: 12/20/2022]
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Margar SN, Sekar N. Red and near-infrared emitting bis-coumarin analogues based on curcumin framework-synthesis and photophysical studies. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.05.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Pradhan T, Gazi HAR, Biswas R. Excited state intramolecular charge transfer reaction in nonaqueous electrolyte solutions: Temperature dependence. J Chem Phys 2009; 131:054507. [DOI: 10.1063/1.3196239] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Pradhan T, Ghoshal P, Biswas R. Excited State Intramolecular Charge Transfer Reaction in Binary Mixtures of Water and Tertiary Butanol (TBA): Alcohol Mole Fraction Dependence. J Phys Chem A 2008; 112:915-24. [DOI: 10.1021/jp0770460] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Tuhin Pradhan
- Department of Chemical, Biological and Macromolecular Sciences, and Unit for Nanoscience and Technology, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake City, Kolkata 700 098, India
| | - Piue Ghoshal
- Department of Chemical, Biological and Macromolecular Sciences, and Unit for Nanoscience and Technology, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake City, Kolkata 700 098, India
| | - Ranjit Biswas
- Department of Chemical, Biological and Macromolecular Sciences, and Unit for Nanoscience and Technology, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake City, Kolkata 700 098, India
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Pradhan T, Biswas R. Electrolyte-Concentration and Ion-Size Dependence of Excited-State Intramolecular Charge-Transfer Reaction in (Alkylamino)benzonitriles: Time-Resolved Fluorescence Emission Studies. J Phys Chem A 2007; 111:11524-30. [DOI: 10.1021/jp075825a] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Tuhin Pradhan
- Department of Chemical, Biological & Macromolecular Sciences, and Unit for Nano Science & Technology, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata 700 098, India
| | - Ranjit Biswas
- Department of Chemical, Biological & Macromolecular Sciences, and Unit for Nano Science & Technology, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata 700 098, India
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Pradhan T, Biswas R. Electrolyte-Concentration and Ion-Size Dependence of Excited-State Intramolecular Charge-Transfer Reaction in (Alkylamino)benzonitriles: Steady-State Spectroscopic Studies. J Phys Chem A 2007; 111:11514-23. [DOI: 10.1021/jp075820d] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Tuhin Pradhan
- Department of Chemical, Biological & Macromolecular Sciences, and Unit for Nano Science & Technology, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata 700 098, India
| | - Ranjit Biswas
- Department of Chemical, Biological & Macromolecular Sciences, and Unit for Nano Science & Technology, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata 700 098, India
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Song L, Xie J, Zhang C, Li C, Zhao J. Recognition of various biomolecules by the environment-sensitive spectral responses of hypocrellin B. Photochem Photobiol Sci 2007; 6:683-8. [PMID: 17549271 DOI: 10.1039/b618678e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In this work, the spectral responses of hypocrellin B (HB) to the microenvironments of various biomolecules were studied, with human serum albumin (HSA), bovine serum albumin (BSA) and ovalbumin (OVA) used as the models for proteins, sodium alginate (SOA) and hyaluronan (HYA) for polysaccharides and liposomes for lipid membranes. Generally, compared to those in aqueous solution, the absorbance and fluorescence of HB were all strengthened in the model systems except for the fluorescence in HYA. Specially, according to the spectral responses of HB, the microenvironments in biomolecules and liposomes could be set in a sequence of hydrophobic grades, i.e., liposomes > proteins > polysaccharides. Further, R(F/A), a parameter defined as the ratio of the fluorescence intensity to the absorbance, was proposed to identify the microenvironment quantitatively. It was found that the R(F/A) could not only distinguish various types of biomolecules but also identify specific binding from nonspecific binding to proteins or polysaccharides.
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Affiliation(s)
- Liming Song
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, People's Republic of China
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Cogan S, Zilberg S, Haas Y. The Electronic Origin of the Dual Fluorescence in Donor−Acceptor Substituted Benzene Derivatives. J Am Chem Soc 2006; 128:3335-45. [PMID: 16522115 DOI: 10.1021/ja0548945] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The origin of the dual fluorescence of DMABN (dimethylaminobenzonitrile) and other benzene derivatives is explained by a charge transfer model based on the properties of the benzene anion radical. It is shown that, in general, three low-lying electronically excited states are expected for these molecules, two of which are of charge transfer (CT) character, whereas the third is a locally excited (LE) state. Dual fluorescence may arise from any two of these states, as each has a different geometry at which it attains a minimum. The Jahn-Teller induced distortion of the benzene anion radical ground state helps to classify the CT states as having quinoid (Q) and antiquinoid (AQ) forms. The intramolecular charge transfer (ICT) state is formed by the transfer of an electron from a covalently linked donor group to an anti-bonding orbital of the pi-electron system of benzene. The change in charge distribution of the molecule in the CT states leads to the most significant geometry change undergone by the molecule which is the distortion of the benzene ring to a Q or AQ structure. As the dipole moment is larger in the perpendicular geometry than in the planar one, this geometry is preferred in polar solvents, supporting the twisted intramolecular charge transfer (TICT) model. However, in many cases the planar conformation of CT excited states is lower in energy than that of the LE state, and dual fluorescence can be observed also from planar structures.
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Affiliation(s)
- Semyon Cogan
- Department of Physical Chemistry and the Farkas Center for Light Induced Processes, The Hebrew University of Jerusalem, Jerusalem, Israel
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Dahl K, Biswas R, Ito N, Maroncelli M. Solvent Dependence of the Spectra and Kinetics of Excited-State Charge Transfer in Three (Alkylamino)benzonitriles. J Phys Chem B 2005; 109:1563-85. [PMID: 16851128 DOI: 10.1021/jp046605p] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Steady-state absorption and emission spectra and emission decay kinetics are reported for 4-aminobenzonitrile (ABN), 4-(1-azetidinyl)benzonitrile (P4C), 4-(1-pyrrolidinyl)benzonitrile (P5C), and 4-(1-piperidinyl)benzonitrile (P6C) in 24 room temperature solvents. In solvents of modest to high polarity, P4C, P5C, and P6C exhibit dual fluorescence and emission decays characteristic of the transformation from an initially prepared (LE) state to a more polar charge transfer (CT) state, whereas ABN does not undergo this reaction. The frequencies of the steady-state absorption and emission spectra of all of these solutes can be rationalized using a dielectric continuum description of the solvent and considering only the minima on the reactive surfaces, which are assumed to involve both an intramolecular (twisting) and a solvation coordinate. Characteristics of the gas-phase solutes deduced from this analysis are in good agreement with electronic structure calculations and indicate that differences in their spectra mainly reflect differences in the relative energies of the gas-phase LE and CT states. The relative yields of LE and CT emission are not described as satisfactorily by this model, and reasons for this failure are discussed. The kinetics of the LE --> CT reaction vary considerably with solute and solvent. In many solvents, the emission decays of P4C are reasonably described by a simple two-state kinetic scheme with time-independent rate constants. In P5C and P6C multiexponential decays are observed that reflect time-dependent shifts of the component spectra as well as time-dependent reaction rates. A simplified analysis of these complex dynamics provides estimates for both the free energy change Delta(r)G and (average) LE --> CT rate constant k(f) for a wide range of solute and solvent combinations. The driving force for reaction (-Delta(r)G) follows the order P6C > P5C > P4C and increases with increasing solvent polarity. The reaction rates are correlated to Delta(r)G and follow the opposite trend. The relationships observed between k(f) and Delta(r)G suggest that static solvent effects, i.e., barrier height changes, are the primary determinants of the solvent dependence in P4C. Correlations between barrier-corrected rates and solvation times suggest that dynamical solvent effects contribute substantially to the solvent dependence of the rates in P5C, and especially P6C.
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Affiliation(s)
- K Dahl
- Department of Chemistry, Penn State University, University Park, PA 16802, USA
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Belau L, Haas Y, Rettig W. Dual Emission of 4-(1H-Pyrrol-1-yl)benzonitrile Clusters with Acetonitrile in a Supersonic Jet and Its Absence in Phenylpyrrole Clusters. J Phys Chem A 2004. [DOI: 10.1021/jp037547v] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Leonid Belau
- Department of Physical Chemistry and the Farkas Center for Light Induced Processes, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Yehuda Haas
- Department of Physical Chemistry and the Farkas Center for Light Induced Processes, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Wolfgang Rettig
- Humboldt University of Berlin, Brook-Taylor-Str. 2, D-12489 Berlin, Germany
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Grabowski ZR, Rotkiewicz K, Rettig W. Structural Changes Accompanying Intramolecular Electron Transfer: Focus on Twisted Intramolecular Charge-Transfer States and Structures. Chem Rev 2003; 103:3899-4032. [PMID: 14531716 DOI: 10.1021/cr940745l] [Citation(s) in RCA: 2240] [Impact Index Per Article: 106.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Parusel AB. Excited state intramolecular charge transfer in N,N-heterocyclic-4-aminobenzonitriles: a DFT study. Chem Phys Lett 2001. [DOI: 10.1016/s0009-2614(01)00441-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Gude C, Rettig W. Radiative and Nonradiative Excited State Relaxation Channels in Squaric Acid Derivatives Bearing Differently Sized Donor Substituents: A Comparison of Experiment and Theory. J Phys Chem A 2000. [DOI: 10.1021/jp000139w] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Claudia Gude
- Institut für Chemie, Physikalische und Theoretische Chemie, Humboldt-Universität zu Berlin, Bunsenstrasse 1, D-10117 Berlin, Germany
| | - Wolfgang Rettig
- Institut für Chemie, Physikalische und Theoretische Chemie, Humboldt-Universität zu Berlin, Bunsenstrasse 1, D-10117 Berlin, Germany
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Sczepan M, Rettig W, L. Bricks Y, Slominski YL, Tolmachev AI. Unsymmetric cyanines: chemical rigidization and photophysical properties. J Photochem Photobiol A Chem 1999. [DOI: 10.1016/s1010-6030(99)00045-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Braatz H, Hecht S, Seifert H, Helm S, Bendig J, Rettig W. Photochemistry and photophysics of donor-acceptor-polyenes. I: all-trans-4-dimethylamino-4′-cyano-1,4-diphenylbutadiene (DCB). J Photochem Photobiol A Chem 1999. [DOI: 10.1016/s1010-6030(99)00024-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Drljaca A, Hubbard CD, van Eldik R, Asano T, Basilevsky MV, le Noble WJ. Activation and Reaction Volumes in Solution. 3. Chem Rev 1998; 98:2167-2290. [PMID: 11848963 DOI: 10.1021/cr970461b] [Citation(s) in RCA: 272] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Drljaca
- Institute for Inorganic Chemistry, University of Erlangen-Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany, Institute for Fundamental Research of Organic Chemistry, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, Japan, Karpov Institute of Physical Chemistry, 10, Vorontsovo Pole, 103064 Moscow, Russia, and Department of Chemistry, State University of New York, Stony Brook, New York 11794-3400
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Affiliation(s)
- Pingyun Chen
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599minus sign3290
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Depaemelaere S, De Schryver FC, Verhoeven JW. Two-Directional Photoinduced Electron Transfer in a Trichromophoric System. J Phys Chem A 1998. [DOI: 10.1021/jp980039e] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sigrid Depaemelaere
- Laboratory of Molecular Dynamics and Spectroscopy, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
| | - Frans C. De Schryver
- Laboratory of Molecular Dynamics and Spectroscopy, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
| | - Jan W. Verhoeven
- Laboratory of Organic Chemistry, University of Amsterdam, Nieuwe Achtergracht 129, 1018 WS Amsterdam, The Netherlands
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Rettig W, Fritz R, Braun D. Combination of Pressure and Temperature Dependent Measurements: A Simple Access to Intrinsic Thermal Activation Energies. J Phys Chem A 1997. [DOI: 10.1021/jp970167n] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- W. Rettig
- W. Nernst-Institut für Physikalische und Theoretische Chemie, Humboldt-Universität Berlin, Bunsenstrasse 1, D-10117 Berlin, Germany, and BASF Schwarzheide GmbH, Schipkauer Strasse, 1, D-01986 Schwarzheide, Germany
| | - R. Fritz
- W. Nernst-Institut für Physikalische und Theoretische Chemie, Humboldt-Universität Berlin, Bunsenstrasse 1, D-10117 Berlin, Germany, and BASF Schwarzheide GmbH, Schipkauer Strasse, 1, D-01986 Schwarzheide, Germany
| | - D. Braun
- W. Nernst-Institut für Physikalische und Theoretische Chemie, Humboldt-Universität Berlin, Bunsenstrasse 1, D-10117 Berlin, Germany, and BASF Schwarzheide GmbH, Schipkauer Strasse, 1, D-01986 Schwarzheide, Germany
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Zachariasse K, Grobys M, von der Haar T, Hebecker A, Il'ichev Y, Jiang YB, Morawski O, Kühnle W. Intramolecular charge transfer in the excited state. Kinetics and configurational changes. J Photochem Photobiol A Chem 1996. [DOI: 10.1016/s1010-6030(96)04368-7] [Citation(s) in RCA: 189] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Formation and stabilization of twisted intramolecular charge transfer states in binary mixed solvents. Chem Phys 1996. [DOI: 10.1016/0301-0104(96)00054-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Vollmer F, Rettig W. Fluorescence loss mechanism due to large-amplitude motions in derivatives of 2,2′-bipyridyl exhibiting excited-state intramolecular proton transfer and perspectives of luminescence solar concentrators. J Photochem Photobiol A Chem 1996. [DOI: 10.1016/1010-6030(95)04252-0] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lang J, Dreger Z, Drickamer H. A high pressure study of the effect of viscosity on the light induced isomerization of DMABN in three linear alcohols, iso-butanol and glycerol. Chem Phys Lett 1995. [DOI: 10.1016/0009-2614(95)00775-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dahal S, Krishnan V. Charge transfer excited states of zinc(II) derivatives of β-substituted dinitrotetraphenylporphyrin. J Photochem Photobiol A Chem 1995. [DOI: 10.1016/1010-6030(94)04017-v] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fisz J. An algorithm for analyzing the polarization-free picosecond fluorescence experiments on TICT, CT, PT and other relevant systems in solutions. Chem Phys 1995. [DOI: 10.1016/0301-0104(94)00366-i] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Dedonder-Lardeux C, Jouvet C, Martrenchard S, Solgadi D, McCombie J, Howells B, Palmer T, Subaric-Leitis A, Monte C, Rettig W, Zimmermann P. Photochemistry in jet-cooled aniline derivatives. Chem Phys 1995. [DOI: 10.1016/0301-0104(94)00334-7] [Citation(s) in RCA: 24] [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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Excited state relaxation channels of liquid-crystalline cyanobiphenyls and a ring-bridged model compound. Comparison of bulk and dilute solution properties. J Photochem Photobiol A Chem 1995. [DOI: 10.1016/1010-6030(94)03881-t] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Al-Hassan KA. Dual fluorescence of ester derivatives of dialkylaniline in polymer matrices: a time-resolved fluorescence study using picosecond dye laser pulses as excitation source. J Photochem Photobiol A Chem 1994. [DOI: 10.1016/1010-6030(94)03832-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Photophysics of linked donor—acceptor systems: through-space and through-bond interactions. J Photochem Photobiol A Chem 1994. [DOI: 10.1016/1010-6030(94)02001-9] [Citation(s) in RCA: 36] [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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33
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Fisz J. Fluorescence depolarization of solutions and ordered systems. Photochemical reactions in the excited states. II. General considerations (b). Chem Phys 1994. [DOI: 10.1016/0301-0104(93)e0432-u] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Braun D, Rettig W. Kinetic studies of twisted intramolecular charge transfer in highly viscous solvents as a function of pressure and temperature. Chem Phys 1994. [DOI: 10.1016/0301-0104(93)e0423-s] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Electronic and molecular structure of 2-phenyl-3,3-dimethyl-3H-indole molecular fluorescence probe and the molecular structure of its dimer. J Mol Struct 1993. [DOI: 10.1016/0022-2860(93)80160-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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The role of the angle of pretwist of some molecules forming twisted intramolecular charge transfer (TICT) states in polymer matrices. Chem Phys Lett 1993. [DOI: 10.1016/0009-2614(93)85511-l] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Belletête M, Sarpal RS, Durocher G. Excited-state dynamics and viscosity-dependent internal conversion in 3,3-dimethyl-2-phenyl-3H-indole. Chem Phys Lett 1993. [DOI: 10.1016/0009-2614(93)85048-s] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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TICT states and beyond: Reaction dimensionality and application to photosynthesis. J CHEM SCI 1992. [DOI: 10.1007/bf02863355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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