1
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Liu XL, Li Y, Xu QD, Yang YY, Fu JH, Wu XT, Sheng TL. Influence of the CN Orientation on the Degree of Electron Delocalization of Ru–Ru–Ru Mixed-Valent Complexes. Inorg Chem 2022; 61:17392-17401. [DOI: 10.1021/acs.inorgchem.2c01172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiao-Lin Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yi Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, P. R. China
| | - Qing-Dou Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, P. R. China
| | - Yu-Ying Yang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, P. R. China
| | - Jin-Hui Fu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, P. R. China
| | - Xin-Tao Wu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, P. R. China
| | - Tian-Lu Sheng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, P. R. China
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2
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Breimaier S, Fröhlich N, Herberger J, Linseis M, Kivala M, Winter RF. Charge and Spin Delocalization in Mixed-Valent Vinylruthenium–Triarylamine-Conjugates with Planarized Triarylamines. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stefanie Breimaier
- Department of Chemistry, University of Konstanz, Universitätsstraße 10, D-78457 Konstanz, Germany
| | - Nina Fröhlich
- Department of Chemistry and Pharmacy, Friedrich−Alexander-Universität Erlangen−Nürnberg, Nicolaus-Fiebiger-Straße 10, D-91058 Erlangen, Germany
| | - Jan Herberger
- Department of Chemistry, University of Konstanz, Universitätsstraße 10, D-78457 Konstanz, Germany
| | - Michael Linseis
- Department of Chemistry, University of Konstanz, Universitätsstraße 10, D-78457 Konstanz, Germany
| | - Milan Kivala
- Institute of Organic Chemistry, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Rainer F. Winter
- Department of Chemistry, University of Konstanz, Universitätsstraße 10, D-78457 Konstanz, Germany
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3
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Tahara K, Koyama H, Fujitsuka M, Tokunaga K, Lei X, Majima T, Kikuchi JI, Ozawa Y, Abe M. Charge-Separated Mixed Valency in an Unsymmetrical Acceptor-Donor-Donor Triad Based on Diarylboryl and Triarylamine Units. J Org Chem 2019; 84:8910-8920. [PMID: 31072099 DOI: 10.1021/acs.joc.9b00836] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, we report the generation of new mixed-valence (MV) subspecies with charge-separated (CS) characters from an unsymmetrical acceptor-donor-donor (A-D-D) triad. The triad was synthesized by attaching a dimesitylboryl group (A) to a D-D conjugate that consisted of triarylamine (NAr3) units. The MV radical cation, obtained by chemical oxidation of the triad, exhibited a strong intervalence charge transfer (IVCT) absorption derived from the bis(NAr3)•+ moiety in the near-IR region. The charge-separated MV (CSMV) state, obtained by photoexcitation of the triad, caused a blue shift in IVCT energy in the femtosecond transient absorption spectra, reflecting a bias of positive charge distributions to the D end site. This resulted from increased electron density at the A site and restructuring of the central D site from NAr3 to NAr2 sites. Interestingly, any shift in the IVCT energy that was caused by the polarity of the solvent was minimal, reflecting the unique characteristics of the CSMV state. These findings represent the first detailed analysis of the CSMV state, including a comparison with conventional MV states. Therefore, this work provides new insights into counterion-free MV systems and their applications in molecular devices.
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Affiliation(s)
- Keishiro Tahara
- Department of Material Science and Research Center for New Functional Materials, Graduate School of Material Science , University of Hyogo , 3-2-1, Kouto , Kamigori, Ako , Hyogo 678-1297 , Japan
| | - Haruya Koyama
- Graduate School of Materials Science , Nara Institute of Science and Technology , 8916-5, Takayama , Ikoma, Nara 630-0192 , Japan
| | - Mamoru Fujitsuka
- Institute of Scientific and Industrial Research (SANKEN) , Osaka University , 8-1, Mihogaoka , Ibaraki , Osaka 567-0047 , Japan
| | - Ken Tokunaga
- Division of Liberal Arts, Centre for Promotion of Higher Education , Kogakuin University , 2665-1, Nakano , Hachioji, Tokyo 192-0015 , Japan
| | - Xu Lei
- Institute of Scientific and Industrial Research (SANKEN) , Osaka University , 8-1, Mihogaoka , Ibaraki , Osaka 567-0047 , Japan
| | - Tetsuro Majima
- Institute of Scientific and Industrial Research (SANKEN) , Osaka University , 8-1, Mihogaoka , Ibaraki , Osaka 567-0047 , Japan
| | - Jun-Ichi Kikuchi
- Graduate School of Materials Science , Nara Institute of Science and Technology , 8916-5, Takayama , Ikoma, Nara 630-0192 , Japan
| | - Yoshiki Ozawa
- Department of Material Science and Research Center for New Functional Materials, Graduate School of Material Science , University of Hyogo , 3-2-1, Kouto , Kamigori, Ako , Hyogo 678-1297 , Japan
| | - Masaaki Abe
- Department of Material Science and Research Center for New Functional Materials, Graduate School of Material Science , University of Hyogo , 3-2-1, Kouto , Kamigori, Ako , Hyogo 678-1297 , Japan
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4
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Gückel S, Gluyas JBG, Eaves SG, Safari P, Yufit DS, Sobolev AN, Kaupp M, Low PJ. A Spectroscopic and Computationally Minimal Approach to the Analysis of Charge-Transfer Processes in Conformationally Fluxional Mixed-Valence and Heterobimetallic Complexes. Chemistry 2019; 25:8837-8853. [PMID: 31050060 DOI: 10.1002/chem.201901200] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Indexed: 11/09/2022]
Abstract
Class II mixed-valence bimetallic complexes {[Cp'(PP)M]C≡C-C≡N[M'(PP)'Cp']}2+ (M, M'=Ru, Fe; PP=dppe, (PPh3 )2 ; Cp'=Cp*, Cp) exist as conformational ensembles in fluid solution, with a population of structures ranging from cis- to trans-like geometries. Each conformer gives rise to its own series of low-energy intervalence charge-transfer (IVCT) and local d-d transitions, which overlap in the NIR region, giving complex band envelopes in the NIR absorption spectrum, which prevent any meaningful attempt at analysis of the band shape. However, DFT and time-dependent (TD)DFT calculations with dispersion-corrected global-hybrid (BLYP35-D3) or local hybrid (lh-SsirPW92-D3) functionals on a small number of optimised structures chosen to sample the ground state potential energy hypersurfaces of each of these complexes has proven sufficient to explain the major features of the electronic spectra. Although modest in terms of computational expense, this approach provides a more accurate description of the underlying molecular electronic structure than would be possible through analysis of the IVCT band by using the static point-charge model of Marcus-Hush theory and derivatives, or TDDFT calculations from a single (global) minimum energy geometry.
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Affiliation(s)
- Simon Gückel
- Institut für Chemie, Theoretische Chemie/Quantenchemie, Technische Universität Berlin, Sekr. C7, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Josef B G Gluyas
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, 6009, Western Australia, Australia
| | - Samantha G Eaves
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, 6009, Western Australia, Australia.,Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - Parvin Safari
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, 6009, Western Australia, Australia
| | - Dmitry S Yufit
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - Alexandre N Sobolev
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, 6009, Western Australia, Australia
| | - Martin Kaupp
- Institut für Chemie, Theoretische Chemie/Quantenchemie, Technische Universität Berlin, Sekr. C7, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Paul J Low
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, 6009, Western Australia, Australia
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5
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Telo JP, Carvalho MFN. Mixed valence radical anions of 4,4″-dinitro-p-terphenyl and its aza derivatives as models for electronic communication in conducting polymers. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.02.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Tahara K, Kadowaki T, Kikuchi JI, Ozawa Y, Yoshimoto S, Abe M. Synthesis and Characterization of a New Series of Binuclear Pd(II) Biscatecholato Complexes: Non-Innocent Ligand-Based Approach to a Wide Range of Variation in Near-Infrared Absorptions of Mixed-Valence Complexes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180187] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Keishiro Tahara
- Department of Material Science and Research Center for New Functional Materials, Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan
| | - Tomoya Kadowaki
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Jun-ichi Kikuchi
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Yoshiki Ozawa
- Department of Material Science and Research Center for New Functional Materials, Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan
| | - Soichiro Yoshimoto
- Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Masaaki Abe
- Department of Material Science and Research Center for New Functional Materials, Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan
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7
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Cook AR, Valášek M, Funston AM, Poliakov P, Michl J, Miller JR. p-Carborane Conjugation in Radical Anions of Cage–Cage and Cage–Phenyl Compounds. J Phys Chem A 2018; 122:798-810. [DOI: 10.1021/acs.jpca.7b10885] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrew R. Cook
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Michal Valášek
- Institute
of Organic Chemistry and Biochemistry, ASCR, Prague 6 16610, Czech Republic
| | - Alison M. Funston
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Pavel Poliakov
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Josef Michl
- Institute
of Organic Chemistry and Biochemistry, ASCR, Prague 6 16610, Czech Republic
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - John R. Miller
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
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8
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Ringenberg MR, Holz J, Peters R. Intervalence of two planar chiral 2-methylferrocenyl groups over a diaurum bridge. Dalton Trans 2018; 47:12873-12878. [DOI: 10.1039/c8dt02640h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The electronic structure of recently reported diaurum (AuI⋯AuI and XAuII–AuIIX) complexes, containing two methylferrocenyloxazoline ligands are described.
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Affiliation(s)
- Mark R. Ringenberg
- Universität Stuttgart Insitut für Anorganische Chemie
- 70569 Stuttgart
- Germany
| | - Julia Holz
- Universität Stuttgart
- Insitut für Organische Chemie
- 70569 Stuttgart
- Germany
| | - René Peters
- Universität Stuttgart
- Insitut für Organische Chemie
- 70569 Stuttgart
- Germany
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9
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Zoerb MC, Henderson JS, Glover SD, Lomont JP, Nguyen SC, Hill AD, Kubiak CP, Harris CB. Electron Dynamics and IR Peak Coalescence in Bridged Mixed Valence Dimers Studied by Ultrafast 2D-IR Spectroscopy. J Phys Chem B 2015. [DOI: 10.1021/acs.jpcb.5b06734] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthew C. Zoerb
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Jane S. Henderson
- Department
of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Starla D. Glover
- Department
of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Justin P. Lomont
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Son C. Nguyen
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Adam D. Hill
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Clifford P. Kubiak
- Department
of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Charles B. Harris
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Chemical
Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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10
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Makhoul R, Sahnoune H, Dorcet V, Halet JF, Hamon JR, Lapinte C. 1,2-Diethynylbenzene-Bridged [Cp*(dppe)Fe]n+ Units: Effect of Steric Hindrance on the Chemical and Physical Properties. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00332] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rim Makhoul
- Institut
des Sciences Chimiques de Rennes,
UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes, France
| | - Hiba Sahnoune
- Institut
des Sciences Chimiques de Rennes,
UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes, France
| | - Vincent Dorcet
- Institut
des Sciences Chimiques de Rennes,
UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes, France
| | - Jean-François Halet
- Institut
des Sciences Chimiques de Rennes,
UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes, France
| | - Jean-René Hamon
- Institut
des Sciences Chimiques de Rennes,
UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes, France
| | - Claude Lapinte
- Institut
des Sciences Chimiques de Rennes,
UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes, France
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11
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Telo JP, Moneo Á. The influence of bridge-reduced state levels on the electron transfer within the 2,7-dinitroanthracene radical anion. Phys Chem Chem Phys 2015; 17:4038-41. [DOI: 10.1039/c4cp05404k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The 2,7-dinitroanthracene radical anion has an (apparent) electronic coupling much higher than either itsN,Ndistance or its non-Kekule substitution would suggest. The results can only be explained if a low-lying bridge redox state is influencing the electron transfer.
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Affiliation(s)
- J. P. Telo
- Centro Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Á. Moneo
- Centro Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
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12
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Cheng T, Tan YN, Zhang Y, Zhang YY, Meng M, Lei H, Chen L, Liu CY. Distinguishing the Strength of Electronic Coupling for Mo2-Containing Mixed-Valence Compounds within the Class III Regime. Chemistry 2014; 21:2353-7. [DOI: 10.1002/chem.201406196] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Indexed: 11/11/2022]
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13
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Hoekstra RM, Chen YT, Kiesz MD, Telo JP, Stephenson RM, Nelsen SF, Zink JI. Resonance Raman spectroscopic study of solvent-dependent coexistence of localized and delocalized dinitroaromatic radical anions. CAN J CHEM 2014. [DOI: 10.1139/cjc-2014-0058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Optical absorption spectra of three dinitroaromatic radical anions, 2,7-dinitro-9,9-dimethylfluorene (1•−), 4,4′-dinitrobiphenyl (2•−), and 4,4′-dinitrotolane (3•−) in solvents THF, HMPA, and MeCN show both an unresolved broad band characteristic of charge-localized mixed valence species (Robin-Day classification Class II), and a vibronically structured band of the delocalized species (Class III). With decreasing solvent reorganization energy, a greater portion of the compounds become charge-delocalized. In particular, 1•− with the greatest coupling, is almost entirely composed of the delocalized species in all solvents. An intense Raman mode is used to identify the charge-bearing unit as the nitrobenzene moiety. Resonance Raman profiles are utilized to gain detailed information of vibrational modes. The out-of-phase ring lengthening stretch mode is observed to be enhanced at higher excitation energies, corresponding to the absorption band of the Class II species, while the in-phase ring lengthening stretch mode, a totally symmetric vibration, is most strongly enhanced in the absorption region of the Class III species. Resonance Raman profiles support the solvent-dependent coexistence of Class II and Class III molecules of the same chemical composition.
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Affiliation(s)
- Ryan M. Hoekstra
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095-1569, USA
| | - Yen-Ting Chen
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095-1569, USA
| | - Matthew D. Kiesz
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095-1569, USA
| | - João P. Telo
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Rachel M. Stephenson
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095-1569, USA
| | - Stephen F. Nelsen
- Department of Chemistry and Molecular Structure Laboratory, University of Wisconsin, 1101 University Avenue, Madison, WI 53706-1396, USA
| | - Jeffrey I. Zink
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095-1569, USA
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14
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Mori Y. Computational study on intramolecular electron transfer in 1,3-dintrobenzene radical anion. J PHYS ORG CHEM 2014. [DOI: 10.1002/poc.3339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yukie Mori
- Department of Chemistry, Faculty of Science; Ochanomizu University; Otsuka, Bunkyo-ku Tokyo 112-8610 Japan
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15
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Moneo Á, Justino GC, Carvalho MFNN, Oliveira MC, Antunes AMM, Bléger D, Hecht S, Telo JP. Electronic Communication in Linear Oligo(azobenzene) Radical Anions. J Phys Chem A 2013; 117:14056-64. [DOI: 10.1021/jp407099c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Álvaro Moneo
- Centro de Química Estrutural, Instituto Superior
Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Gonçalo C. Justino
- Centro de Química Estrutural, Instituto Superior
Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - M. Fernanda N. N. Carvalho
- Centro de Química Estrutural, Instituto Superior
Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - M. Conceição Oliveira
- Centro de Química Estrutural, Instituto Superior
Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Alexandra M. M. Antunes
- Centro de Química Estrutural, Instituto Superior
Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - David Bléger
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse
2, 12489 Berlin, Germany
| | - Stefan Hecht
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse
2, 12489 Berlin, Germany
| | - João P. Telo
- Centro de Química Estrutural, Instituto Superior
Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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16
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Moneo Á, Telo JP. Electron transfer within 1,3-dinitrobenzene radical anions: electron hopping or superexchange? J PHYS ORG CHEM 2013. [DOI: 10.1002/poc.2957] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Álvaro Moneo
- Centro de Química Estrutural, Instituto Superior Técnico; Technical University of Lisbon; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - João P. Telo
- Centro de Química Estrutural, Instituto Superior Técnico; Technical University of Lisbon; Av. Rovisco Pais 1049-001 Lisboa Portugal
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17
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Yang J, Zhang W, Si Y, Zhao Y. Intramolecular Electronic Couplings in Class II/III Organic Mixed-Valence Systems of Bis(1,4-dimethoxybenzene). J Phys Chem B 2012; 116:14126-35. [DOI: 10.1021/jp308242s] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Juanhua Yang
- State Key Laboratory of Physical Chemistry
of Solid Surfaces, Fujian Provincial Key Lab of Theoretical
and Computational Chemistry, and College of Chemistry and Chemical
Engineering, Xiamen University, Xiamen
361005, P. R. China
| | - Weiwei Zhang
- State Key Laboratory of Physical Chemistry
of Solid Surfaces, Fujian Provincial Key Lab of Theoretical
and Computational Chemistry, and College of Chemistry and Chemical
Engineering, Xiamen University, Xiamen
361005, P. R. China
| | - Yubing Si
- State Key Laboratory of Physical Chemistry
of Solid Surfaces, Fujian Provincial Key Lab of Theoretical
and Computational Chemistry, and College of Chemistry and Chemical
Engineering, Xiamen University, Xiamen
361005, P. R. China
| | - Yi Zhao
- State Key Laboratory of Physical Chemistry
of Solid Surfaces, Fujian Provincial Key Lab of Theoretical
and Computational Chemistry, and College of Chemistry and Chemical
Engineering, Xiamen University, Xiamen
361005, P. R. China
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18
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Renz M, Kaupp M. Predicting the localized/delocalized character of mixed-valence diquinone radical anions. Toward the right answer for the right reason. J Phys Chem A 2012; 116:10629-37. [PMID: 23025699 DOI: 10.1021/jp308294r] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The Robin-Day class II/III mixed-valence character is established quantum-chemically for a series of mixed-valence diquinone radical anions. Particular emphasis is placed on the radical anion of tetrathiafulvalenedibenzoquinone, Q-TTF-Q, which has recently been used to evaluate constrained density functional approaches (CDFT) and new range hybrid functionals. Using a computational protocol based on hybrid functionals with 35-42% exact-exchange admixture and inclusion of solvent models during the structure optimization, it is demonstrated that a) Q-TTF-Q(•-), 1, and the related diquinone radical anions 2-4 are all delocalized class III species in the gas phase and in nonpolar solvents, in contrast to previous assumptions; b) 1,4,5,8-anthracenetetraone radical anion, 2, remains class III in polar aprotic solvents, c) systems 1, 3 and 4 become class II, providing excellent agreement between computed and experimental intervalence charge-transfer excitations, thermal electron-transfer (ET) barriers and ESR hyperfine couplings. The direct conductor-like screening model for real solvents (D-COSMO-RS) allows the inclusion of specific hydrogen-bonding effects without the computational effort of molecular dynamics simulations and provides increased ET barriers, as well as a predicted incipient symmetry breaking for 2, due to hydrogen bonding in alcohol solvents. For the first time D-COSMO-RS optimizations in solvent mixtures have been evaluated. As previous computational studies of Q-TTF-Q(•-) neglected solvent effects during structure optimizations and obtained charge localization in gas-phase optimizations by CDFT or by exaggerated exact-exchange admixtures, they provided at best the right answer for the wrong reason.
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Affiliation(s)
- Manuel Renz
- Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Sekr. C7, Straße des 17. Juni 135, 10623 Berlin, Germany
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Moneo Á, Carvalho MFNN, Telo JP. Dicyanoaromatic radical anions as mixed valence species. J PHYS ORG CHEM 2012. [DOI: 10.1002/poc.2905] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Álvaro Moneo
- Centro de Química Estrutural, Instituto Superior Técnico; Technical University of Lisbon; Av. Rovisco Pais,; 1049-001; Lisboa; Portugal
| | - M. Fernanda N. N. Carvalho
- Centro de Química Estrutural, Instituto Superior Técnico; Technical University of Lisbon; Av. Rovisco Pais,; 1049-001; Lisboa; Portugal
| | - João P. Telo
- Centro de Química Estrutural, Instituto Superior Técnico; Technical University of Lisbon; Av. Rovisco Pais,; 1049-001; Lisboa; Portugal
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Heckmann A, Lambert C. Organic Mixed-Valence Compounds: A Playground for Electrons and Holes. Angew Chem Int Ed Engl 2011; 51:326-92. [DOI: 10.1002/anie.201100944] [Citation(s) in RCA: 414] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Indexed: 11/05/2022]
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Heckmann A, Lambert C. Organische gemischtvalente Verbindungen: ein Spielplatz für Elektronen und Löcher. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100944] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Affiliation(s)
- Jihane Hankache
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
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Chisholm MH, Lear BJ. M2δ to ligand π-conjugation: testbeds for current theories of mixed valence in ground and photoexcited states of molecular systems. Chem Soc Rev 2011; 40:5254-65. [DOI: 10.1039/c1cs15061h] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Kaupp M, Renz M, Parthey M, Stolte M, Würthner F, Lambert C. Computational and spectroscopic studies of organic mixed-valence compounds: where is the charge? Phys Chem Chem Phys 2011; 13:16973-86. [DOI: 10.1039/c1cp21772k] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Hoekstra RM, Telo JP, Wu Q, Stephenson RM, Nelsen SF, Zink JI. Solvent Effects on the Coexistence of Localized and Delocalized 4,4′-Dinitrotolane Radical Anion by Resonance Raman Spectroscopy. J Am Chem Soc 2010; 132:8825-7. [DOI: 10.1021/ja1017859] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Ryan M. Hoekstra
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry and Molecular Structure Laboratory, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706-1396
| | - João P. Telo
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry and Molecular Structure Laboratory, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706-1396
| | - Qin Wu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry and Molecular Structure Laboratory, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706-1396
| | - Rachel M. Stephenson
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry and Molecular Structure Laboratory, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706-1396
| | - Stephen F. Nelsen
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry and Molecular Structure Laboratory, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706-1396
| | - Jeffrey I. Zink
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry and Molecular Structure Laboratory, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706-1396
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Renz M, Theilacker K, Lambert C, Kaupp M. A reliable quantum-chemical protocol for the characterization of organic mixed-valence compounds. J Am Chem Soc 2010; 131:16292-302. [PMID: 19831383 DOI: 10.1021/ja9070859] [Citation(s) in RCA: 150] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Structures, dipole moments, electron-transfer barriers, and spin density distributions of a series of mixed-valent bistriarylamin radical cations have been studied systematically by hybrid density functional methods with variable exact-exchange admixture combined with a continuum solvent model. The chosen systems differ in their bridging units and are all relatively close, from both sides, to the class II/III borderline of the Robin-Day classification of mixed-valence systems. Solvent effects are found to have a dramatic influence on the localized vs delocalized character of these cations. While gas-phase calculations or computations in a nonpolar solvent place all systems on the delocalized class III side, a more polar solvent like acetonitrile enables observation of symmetry breaking and charge localization with moderate exact-exchange admixtures in a hybrid functional for the systems on the class II side (with diphenylbutadiyne and diphenylethyne bridges). In contrast, the cations with the shortest bridges (phenylene, biphenylene) are characterized as class III. The comparison of computed intervalence charge-transfer excitation frequencies with experiment confirms the system with the diphenylbutadiyne bridge, and probably the system with the diphenylethyne bridge, to be class II, whereas in the dichloromethane solvent employed for spectroscopic measurements, the two other systems are on the class III side. Nonstandard hybrid density functional calculations with 35% Hartree-Fock-like exchange combined with continuum solvent models are suggested as a practical protocol for the quantum-chemical characterization of organic mixed-valence systems. This approach should allow closer examinations and provides a basis for the evaluation of other computational methods.
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Affiliation(s)
- Manuel Renz
- Institut für Anorganische Chemie, Universität Würzburg, Germany
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Telo JP, Nelsen SF, Zhao Y. Electron Transfer within Charge-Localized Dinitroaromatic Radical Anions. J Phys Chem A 2009; 113:7730-6. [DOI: 10.1021/jp9017508] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- João P. Telo
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Department of Chemistry, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706-1396, and State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, People’s Republic of China
| | - Stephen F. Nelsen
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Department of Chemistry, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706-1396, and State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, People’s Republic of China
| | - Yi Zhao
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Department of Chemistry, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706-1396, and State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, People’s Republic of China
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