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Peng Z, Lin Y, Deng S, Liu Z, Xia Y, Ou YP, Zhang J, Hua Liu S. Molecular engineering of thiophene- and pyrrole-fused core arylamine systems: Tuning redox properties, NIR spectral responsiveness and bacterial imaging applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 321:124704. [PMID: 38936208 DOI: 10.1016/j.saa.2024.124704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 06/11/2024] [Accepted: 06/21/2024] [Indexed: 06/29/2024]
Abstract
The thiophene- and pyrrole-fused heterocyclic compounds have garnered significant interest for their distinctive electron-rich characteristics and notable optoelectronic properties. However, the construction of high-performance systems within this class is of great challenge. Herein, we develop a series of novel dithieno[3,2-b:2',3'-d] pyrrole (DTP) and tetrathieno[3,2-b:2',3'-d] pyrrole (TTP) bridged arylamine compounds (DTP-C4, DTP-C12, DTP-C4-Fc, TTP-C4-OMe, TTP-C4, and TTP-C12) with varying carbon chain lengths. The pertinent experimental results reveal that this series of compounds undergo completely reversible multistep redox processes. Notably, TTP-bridged compounds TTP-C4 and TTP-C12 exhibit impressive multistep near-infrared (NIR) absorption alterations with notable color changes and electroluminescent behaviors, which are mainly attributed to the charge transfer transitions from terminal arylamine units to central bridges, as supported by theoretical calculations. Additionally, compound DTP-C4 demonstrates the ability to visually identify gram-positive and gram-negative bacteria. Therefore, this work suggests the promising electroresponsive nature of compounds TTP-C4 and TTP-C12, positioning them as excellent materials for various applications. It also provides a facile approach to constructing high-performance multifunctional luminescent materials, particularly those with strong and long-wavelength NIR absorption capabilities.
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Affiliation(s)
- Zhen Peng
- State Key Laboratory of Green Pesticide, Central China Normal University, Wuhan 430079, China
| | - Yiling Lin
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Shuangling Deng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhenji Liu
- College of Chemistry and Material Science, Hunan Provincial Key Laboratory of Functional Metal-Organic Compounds, Hengyang Normal University, Hengyang 421008, China
| | - Yonglin Xia
- Hengyang Normal University Nanyue College, Hengyang, Hunan 421001, China
| | - Ya-Ping Ou
- College of Chemistry and Material Science, Hunan Provincial Key Laboratory of Functional Metal-Organic Compounds, Hengyang Normal University, Hengyang 421008, China; Hengyang Normal University Nanyue College, Hengyang, Hunan 421001, China.
| | - Jing Zhang
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Sheng Hua Liu
- State Key Laboratory of Green Pesticide, Central China Normal University, Wuhan 430079, China.
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2
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Gogesch FS, Bauer L, Vollstädt FD, Linseis M, Senft L, Ivanović-Burmazović I, Winter RF. Pyrene fluorescence in 2,7-di(4-phenylethynyl)pyrene-bridged bis(alkenylruthenium) complexes. Dalton Trans 2023; 53:251-259. [PMID: 38037827 DOI: 10.1039/d3dt03114d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Complexes PyrDPE-RuCl and PyrDPE-Ruacac with a π-extended 2,7-di(4-phenylethynyl)pyrene linker undergo simultaneous one-electron oxidations of their {Ru}-styryl entities. The absence of an intervalence charge-transfer (IVCT) band at intermediate stages, where the mixed-valent, singly oxidized radical cation is present, and spin density confinement to the terminal styryl ruthenium site(s) are tokens of a lack of electronic coupling between the {Ru} entities across the π-conjugated linker. The close similarity of the linker-based π → π* bands in the complexes and the free ligand and their insensitivity towards oxidations at the terminal sites indicate that the central pyrenyl fluorophore is electronically decoupled from the electron-rich {Ru}-styryl termini. As a consequence, the complexes offer stable pyrene-based fluorescence emissions at 77 K, which are red-shifted from that of the linker.
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Affiliation(s)
- Franciska S Gogesch
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany.
| | - Lea Bauer
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany.
| | - Florian D Vollstädt
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany.
| | - Michael Linseis
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany.
| | - Laura Senft
- Fachbereich Chemie, Ludwig-Maximilian-Universität München, Butenandtstraße 5-13, Haus D, 81377 München, Germany
| | - Ivana Ivanović-Burmazović
- Fachbereich Chemie, Ludwig-Maximilian-Universität München, Butenandtstraße 5-13, Haus D, 81377 München, Germany
| | - Rainer F Winter
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany.
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3
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Gillespie AA, Roemer M, Jago D, Sobolev AN, Nealon GL, Spackman PR, Moggach SA, Koutsantonis GA. Functionalised organometallic photoswitches containing dihydropyrene units. Dalton Trans 2023; 52:14549-14563. [PMID: 37781908 DOI: 10.1039/d3dt02505e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Functionalising organic molecular photoswitches with metal complexes has been shown to alter and enhance their switching states. These organometallic photoswitches provide a promising basis for novel smart molecular materials and molecular electronic devices. We have detailed the synthesis and characterisation of mono- and bimetallic half-sandwich ruthenium and iron complexes functionalised with alkynyl dihydropyrenes (DHP). Their electronic and photophysical properties were determined by the use of chemical, electrochemical and spectroelectrochemical techniques. The introduction of the metal alkynyl moiety allows access to additional redox and protonation states not accessible by the DHP alone. An additional metal alkynyl moiety inhibits observable photochromic switching. Analysis of the NIR and IR bands in the mixed valence complexes suggests there is a high degree of charge delocalisation across the DHP.
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Affiliation(s)
- Angus A Gillespie
- Chemistry, School of Molecular Science, The University of Western Australia, Crawley, WA 6009, Australia.
| | - Max Roemer
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - David Jago
- Chemistry, School of Molecular Science, The University of Western Australia, Crawley, WA 6009, Australia.
| | - Alexandre N Sobolev
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Crawley, WA 6009, Australia
| | - Gareth L Nealon
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Crawley, WA 6009, Australia
| | - Peter R Spackman
- Curtin Institute for Computation, School of Molecular and Life Sciences, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia
| | - Stephen A Moggach
- Chemistry, School of Molecular Science, The University of Western Australia, Crawley, WA 6009, Australia.
| | - George A Koutsantonis
- Chemistry, School of Molecular Science, The University of Western Australia, Crawley, WA 6009, Australia.
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4
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Clendening RA, Delancey SS, Poore AT, Xue S, Guo Y, Tian S, Ren T. Enabling Valence Delocalization in Iron(III) Macrocyclic Complexes through Ring Unsaturation. Inorg Chem 2023; 62:11121-11133. [PMID: 37390479 PMCID: PMC10688613 DOI: 10.1021/acs.inorgchem.3c01179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2023]
Abstract
The complexes [FeIII(HMC)(C2DMA)2]CF3SO3 ([2]OTf) and [FeIII(HMTI)(C2Y)2]CF3SO3 ([3a-c]OTf) have been prepared and thoroughly characterized (HMC = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane; HMTI = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene; Y = Fc (ferrocenyl, [3a]OTf), 4-(N,N-dimethyl)anilino (DMA, [3b]OTf), or 4-(N,N-bis(4-methoxyphenyl)anilino (TPA, [3c]OTf); OTf- = CF3SO3-)). Vibrational and electronic absorption spectroelectrochemical analyses following one-electron oxidation of the ethynyl substituent Y revealed evidence of strong coupling in the resultant mixed valent species for all HMTI-based complexes. However, the analogous mixed valent ion based on [2]OTf appeared to be more localized. Thus, the tetra-imino macrocycle HMTI has enabled significant valence delocalization along the -C2-FeIII-C2- bridge. Electron paramagnetic resonance and Mössbauer spectroscopic studies of [3b]OTf reveal that the π-acidity of HMTI lowers the energy of the FeIII dπ orbitals compared to the purely σ-donating HMC. This observation provides a basis for the interpretation of the macrocycle-dependent valence (de)localization.
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Affiliation(s)
- Reese A. Clendening
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Stephanie S. Delancey
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Andrew T. Poore
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Shan Xue
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Yisong Guo
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Shiliang Tian
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Tong Ren
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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5
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Tanaka Y, Kawano R, Akita M. Acene Size-Dependent Transition of The Radical Centers From the Metal to The Acene Parts In Monocationic Dinuclear (Diethynylacene)diyl Complexes. Chemistry 2022; 28:e202201358. [PMID: 35680560 PMCID: PMC9804824 DOI: 10.1002/chem.202201358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Indexed: 01/09/2023]
Abstract
Controlling radical localization/delocalization is important for functional materials. The present paper describes synthesis and results of electrochemical, spectroscopic, and theoretical studies of diruthenium (p-diethynylacene)diyl complexes, Me3 Si-(C≡C)2 -Ru(dppe)2 -C≡C-Ar-C≡C-Ru(dppe)2 -(C≡C)2 -SiMe3 (1-6) (dppe: 1,2-bis(diphenylphosphino)ethane), and their monocationic radical species ([1]+ -[6]+ ). The HOMO-LUMO energy gaps can be finely tuned by the acene rings in the bridging ligands installed, as indicated by the absorption maxima of the electronic spectra of 1-6 ranging from the UV region even to the NIR region. The cationic species [1]+ -[6]+ show two characteristic NIR bands, which are ascribed to the charge resonance (CR) and π-π* transition bands, as revealed by spectroelectrochemistry. Expansion of the acene rings in [1]+ -[6]+ causes (1) blue shifts of the CR bands and red shifts of the π-π* transition bands and (2) charge localization on the acene parts as evidenced by the ESR, DFT and TD-DFT analyses. Notably, the monocationic complexes of the larger acene derivatives are characterized as the non-classical acene-localized radicals.
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Affiliation(s)
- Yuya Tanaka
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology4259 Nagatsuta, Midori-kuYokohama226-8503Japan,Department of Chemical Science and EngineeringSchool of Materials and Chemical TechnologyTokyo Institute of Technology4259 Nagatsuta, Midori-kuYokohama226-8503Japan
| | - Reo Kawano
- Department of Chemical Science and EngineeringSchool of Materials and Chemical TechnologyTokyo Institute of Technology4259 Nagatsuta, Midori-kuYokohama226-8503Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology4259 Nagatsuta, Midori-kuYokohama226-8503Japan,Department of Chemical Science and EngineeringSchool of Materials and Chemical TechnologyTokyo Institute of Technology4259 Nagatsuta, Midori-kuYokohama226-8503Japan
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6
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Safari P, Gückel S, Gluyas JBG, Moggach SA, Kaupp M, Low PJ. The Use of Bridging Ligand Substituents to Bias the Population of Localized and Delocalized Mixed‐Valence Conformers in Solution. Chemistry 2022; 28:e202200926. [PMID: 35642131 PMCID: PMC9401031 DOI: 10.1002/chem.202200926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Parvin Safari
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley, WA 6009 Australia
| | - Simon Gückel
- Institut für Chemie Theoretische Chemie/Quantenchemie Sekr. C7 Technische Universität Berlin Straße des 17. Juni 135 10623 Berlin Germany
| | - Josef B. G. Gluyas
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley, WA 6009 Australia
| | - Stephen A. Moggach
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley, WA 6009 Australia
| | - Martin Kaupp
- Institut für Chemie Theoretische Chemie/Quantenchemie Sekr. C7 Technische Universität Berlin Straße des 17. Juni 135 10623 Berlin Germany
| | - Paul J. Low
- School of Molecular Sciences University of Western Australia 35 Stirling Highway Crawley, WA 6009 Australia
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7
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Das R, Linseis M, Schupp SM, Schmidt-Mende L, Winter RF. Electron-Rich Diruthenium Complexes with π-Extended Alkenyl Ligands and Their F 4 TCNQ Charge-Transfer Salts. Chemistry 2022; 28:e202104403. [PMID: 35235235 PMCID: PMC9310581 DOI: 10.1002/chem.202104403] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Indexed: 11/07/2022]
Abstract
The synthesis of dinuclear ruthenium alkenyl complexes with {Ru(CO)(Pi Pr3 )2 (L)} entities (L=Cl- in complexes Ru2 -3 and Ru2 -7; L=acetylacetonate (acac- ) in complexes Ru2 -4 and Ru2 -8) and with π-conjugated 2,7-divinylphenanthrenediyl (Ru2 -3, Ru2 -4) or 5,8-divinylquinoxalinediyl (Ru2 -7, Ru2 -8) as bridging ligands are reported. The bridging ligands are laterally π-extended by anellating a pyrene (Ru2 -7, Ru2 -8) or a 6,7-benzoquinoxaline (Ru2 -3, Ru2 -4) π-perimeter. This was done with the hope that the open π-faces of the electron-rich complexes will foster association with planar electron acceptors via π-stacking. The dinuclear complexes were subjected to cyclic and square-wave voltammetry and were characterized in all accessible redox states by IR, UV/Vis/NIR and, where applicable, by EPR spectroscopy. These studies signified the one-electron oxidized forms of divinylphenylene-bridged complexes Ru2 -7, Ru2 -8 as intrinsically delocalized mixed-valent species, and those of complexes Ru2 -3 and Ru2 -4 with the longer divinylphenanthrenediyl linker as partially localized on the IR, yet delocalized on the EPR timescale. The more electron-rich acac- congeners formed non-conductive 1 : 1 charge-transfer (CT) salts on treatment with the F4 TCNQ electron acceptor. All spectroscopic techniques confirmed the presence of pairs of complex radical cations and F4 TCNQ.- radical anions in these CT salts, but produced no firm evidence for the relevance of π-stacking to their formation and properties.
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Affiliation(s)
- Rajorshi Das
- Fachbereich Chemie, Universität Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
| | - Michael Linseis
- Fachbereich Chemie, Universität Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
| | - Stefan M Schupp
- Fachbereich Physik, Universität Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
| | - Lukas Schmidt-Mende
- Fachbereich Physik, Universität Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
| | - Rainer F Winter
- Fachbereich Chemie, Universität Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
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8
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Sil A, Roy SS, Mishra VK, Islam SN, Mishra S, Patra SK. Modulation of Electrochemical and Spectroscopic Properties in Ru(II)‐Terpyridyl End‐Capped Homobimetallic Organometallic Complexes by Varying π‐Conjugated Organic Spacers. ChemistrySelect 2022. [DOI: 10.1002/slct.202200152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Amit Sil
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Sourav Saha Roy
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Vipin Kumar Mishra
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Sk Najmul Islam
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Sabyashachi Mishra
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 India
- Centre for Computational and Data Sciences Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Sanjib K. Patra
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 India
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9
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Metzelaars M, Sanz S, Rawson J, Hartmann R, Schneider CM, Kögerler P. Fusing pyrene and ferrocene into a chiral, redox-active triangle. Chem Commun (Camb) 2021; 57:6660-6663. [PMID: 34128505 DOI: 10.1039/d1cc02191e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A macrocycle that integrates three ferrocene-pyrene dyads in a triangular C2-symmetric arrangement is synthesised as a racemate in a simple one-pot approach. Crystal structural analysis reveals two enantiomeric conformers that pack alternatingly via π-π stacking and interconvert dynamically in solution. Electrochemical investigations indicate weak electrostatic interactions between Fc groups upon oxidation to a mixed valence triangle.
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Affiliation(s)
- Marvin Metzelaars
- Institute of Inorganic Chemistry, RWTH Aachen University, Aachen 52074, Germany.
| | - Sergio Sanz
- Peter Grünberg Institute (PGI-6), Forschungszentrum Jülich GmbH, Jülich 52425, Germany
| | - Jeff Rawson
- Institute of Inorganic Chemistry, RWTH Aachen University, Aachen 52074, Germany. and Peter Grünberg Institute (PGI-6), Forschungszentrum Jülich GmbH, Jülich 52425, Germany
| | - Rudolf Hartmann
- Institute of Biological Information Processing (IBI-7), Forschungszentrum Jülich GmbH, Jülich 52425, Germany
| | - Claus M Schneider
- Peter Grünberg Institute (PGI-6), Forschungszentrum Jülich GmbH, Jülich 52425, Germany
| | - Paul Kögerler
- Institute of Inorganic Chemistry, RWTH Aachen University, Aachen 52074, Germany. and Peter Grünberg Institute (PGI-6), Forschungszentrum Jülich GmbH, Jülich 52425, Germany
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10
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Harrison DP, Kumar VJ, Noppers JN, Gluyas JBG, Sobolev AN, Moggach SA, Low PJ. Iron vs. ruthenium: syntheses, structures and IR spectroelectrochemical characterisation of half-sandwich Group 8 acetylide complexes. NEW J CHEM 2021. [DOI: 10.1039/d0nj03093g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A synthetic ‘trick’ affording complexes [M(CCR)(dppe)Cp′] (M = Fe, Ru) in high purity directly from the reaction vessel is described.
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Affiliation(s)
- Daniel P. Harrison
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - Varshini J. Kumar
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - Johanna N. Noppers
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - Josef B. G. Gluyas
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - Alexandre N. Sobolev
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - Stephen A. Moggach
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - Paul J. Low
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
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11
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Banziger SD, Clendening RA, Oxley BM, Ren T. Spectroelectrochemical and Computational Analysis of a Series of Cycloaddition–Retroelectrocyclization-Derived Donor–Acceptor Chromophores. J Phys Chem B 2020; 124:11901-11909. [PMID: 33347757 DOI: 10.1021/acs.jpcb.0c09450] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Susannah D. Banziger
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Reese A. Clendening
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Benjamin M. Oxley
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Tong Ren
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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12
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Ou YP, Zhang J, Hu Y, Yin J, Chi C, Liu SH. Oxidized divinyl oligoacene-bridged diruthenium complexes: bridged localized radical characters and reduced aromaticity in bridge cores. Dalton Trans 2020; 49:16877-16886. [PMID: 33180078 DOI: 10.1039/d0dt02883e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A series of bimetallic ruthenium vinyl complexes 1-5 bridged by oligoacenes were synthesized and characterized in this study. Comparative cyclic voltammetry results from 1-5 indicated that the first oxidation potential decreased gradually with the extension of conjugate ligands. Upon oxidation to singly oxidized species 1+-5+, rather small ν(CO) changes in the infrared (IR) spectra and the characteristic bands of metal-to-ligand charge transfer absorptions in the near IR (NIR) region predicted via time-dependent DFT calculations suggested that strong bridged ligands participate in redox processes. NIR absorptions were not observed in complexes 4+ and 5+ possibly because of instability in their twisted and noncoplanar geometry. Electron paramagnetic resonance results and spin density distribution demonstrated that the bridged localized degrees of 1+-5+ successively increased with the extension of oligoacene from benzene to tetracene. Further comparative analysis of neutral molecules and monocations to the aromaticity and π-electron density of bridge cores indicated a step-by-step transformation process from an aromatic to quinoidal radical upon oxidation.
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Affiliation(s)
- Ya-Ping Ou
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Functional Organometallic Materials of Hunan Province College, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, Hunan 421008, P. R. China
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13
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Roy SS, Chowdhury SR, Mishra S, Patra SK. Role of Substituents at 3-position of Thienylethynyl Spacer on Electronic Properties in Diruthenium(II) Organometallic Wire-like Complexes. Chem Asian J 2020; 15:3304-3313. [PMID: 32790947 DOI: 10.1002/asia.202000755] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/27/2020] [Indexed: 11/11/2022]
Abstract
A series of organometallic complexes [Cl(dppe)2 Ru-C≡C-(3-R-C4 H2 S)-C≡C-Ru(dppe)2 Cl] (3-R-C4 H2 S=3-substituted thienyl moiety; R=-H, -C2 H5 , -C3 H7 , -C4 H9 , -C6 H13 , -OMe, -CN in 5 a-5 g respectively) have been synthesized by systematic variation of 3-substituents at the thienylethynyl bridging unit. The diruthenum(II) wire-like complexes (5 a-5 g) have been achieved by the reaction of thienylethynyl bridging units, HC≡C-(3-R-C4 H2 S)-C≡CH (4 a-4 g) with cis-[Ru(dppe)2 Cl2 ]. The wire-like diruthenium(II) complexes undergo two consecutive electrochemical oxidation processes in the potential range of 0.0 - 0.8 V. Interestingly, the wave separation between the two redox waves is greatly influenced by the substituents at the 3-position of the thienylethynyl. Thus, the substitution on 3-position of the thienylethynyl bridging unit plays a pivotal role for tuning the electronic properties. To understand the electronic behavior, density functional theory (DFT) calculations of the selected diruthenium wire-like complexes (5 a-5 e) with different alkyl appendages are performed. The theoretical data demonstrate that incorporation of alkyl groups to the thienylethynyl entity leaves unsymmetrical spin densities, thus affecting the electronic properties. The voltammetric features of the other two Ru(II) alkynyl complexes 5 f and 5 g (with -OMe and -CN group respectively) show an apparent dependence on the electronic properties. The electronic properties in the redox conjugate, (5 a+ ) with Kc of 3.9×106 are further examined by UV-Vis-NIR and FTIR studies, showing optical responses in NIR region along with changes in "-Ru-C≡C-" vibrational stretching frequency. The origin of the observed electronic transition has been assigned based on time-dependent DFT (TDDFT) calculations.
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Affiliation(s)
- Sourav Saha Roy
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, WB, India
| | | | - Sabyashachi Mishra
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, WB, India
| | - Sanjib K Patra
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, WB, India
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Hu YX, Zhang J, Zhang F, Wang X, Yin J, Hartl F, Liu SH. Electronic Properties of Oxidized Cyclometalated Diiridium Complexes: Spin Delocalization Controlled by the Mutual Position of the Iridium Centers. Chemistry 2020; 26:4567-4575. [PMID: 31891433 DOI: 10.1002/chem.201904894] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 12/20/2019] [Indexed: 11/10/2022]
Abstract
Four cyclometalated diiridium complexes, with IrCp*Cl (Cp*=η5 -C5 Me5 - ) termini bridged by 1,4- and 1,3-bis(p-tolyliminoethyl)benzene (1, 2), or 1,4- and 1,3-bis(2-pyridyl)benzene (3, 4), were prepared and characterized by nuclear magnetic resonance (NMR) spectroscopy and single-crystal X-ray diffraction (complexes 1, 2, and 4). The two iridium centers in complexes 1 and 3 are thus bound at the central benzene ring in the para-position (trans-Ir2), whereas those in complexes 2 and 4 are in the meta-position (cis-Ir2). Cyclic voltammograms of all four complexes show two consecutive one-electron oxidations. The potential difference between the two anodic steps in 1 and 3 is distinctly larger than that for 2 and 4. The visible-near-infrared (NIR)-short-wave infrared (SWIR) absorption spectra of trans-Ir2 monocations 1+ and 3+ are markedly different from those of cis-Ir2 monocations 2+ and 4+ . Notably, strong near-infrared electronic absorption appears only in the spectra of 1+ and 3+ whereas 2+ and 4+ absorb only weakly in the NIR-SWIR region. Combined DFT and TD-DFT calculations have revealed that (a) 1+ and 3+ (the diiridium-benzene trans-isomers) display the highest occupied spin-orbitals (HOSO) and the lowest unoccupied spin-orbital (LUSO) evenly delocalized over both molecule halves, and (b) their electronic absorptions in the NIR-SWIR region are attributed to mixed metal-to-ligand and ligand-to-ligand charge transfers (MLCT and LLCT). In contrast, cis-isomers 2+ and 4+ do not feature this stabilizing π-delocalization but a localized mixed-valence state showing a weak intervalence charge-transfer (IVCT) absorption in the SWIR region.
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Affiliation(s)
- Yu Xuan Hu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Jing Zhang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Fangfang Zhang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Xiaoyan Wang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Jun Yin
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - František Hartl
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
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15
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Ou Y, Wang A, Yuan A, Yin C, Hu F. Phenyl‐Bridged Ferrocene/Ruthenium Alkynyl Heterobimetallic Complexes: Syntheses, Characterization, and Electrochemical, Spectroscopic, and Computational Investigation. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Ya‐Ping Ou
- College of Chemistry and Material Science Hengyang Normal University Key Laboratory of Functional Metal‐Organic Compounds of Hunan Province Key Laboratory of Functional Organometallic Materials of Hunan Province College Hengyang Hunan 421008 P.R. China
| | - Aihui Wang
- College of Chemistry and Material Science Hengyang Normal University Key Laboratory of Functional Metal‐Organic Compounds of Hunan Province Key Laboratory of Functional Organometallic Materials of Hunan Province College Hengyang Hunan 421008 P.R. China
| | - Ande Yuan
- College of Chemistry and Material Science Hengyang Normal University Key Laboratory of Functional Metal‐Organic Compounds of Hunan Province Key Laboratory of Functional Organometallic Materials of Hunan Province College Hengyang Hunan 421008 P.R. China
| | - Chuang Yin
- College of Chemistry and Material Science Hengyang Normal University Key Laboratory of Functional Metal‐Organic Compounds of Hunan Province Key Laboratory of Functional Organometallic Materials of Hunan Province College Hengyang Hunan 421008 P.R. China
| | - Fang Hu
- Faculty of Materials Science and Chemical Engineering Ningbo University 315211 Ningbo China
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16
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Gendron F, Groizard T, Le Guennic B, Halet JF. Electronic Properties of Poly-Yne Carbon Chains and Derivatives with Transition Metal End-Groups. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901112] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Frédéric Gendron
- ISCR (Institut des Sciences Chimiques de Rennes); Univ Rennes, CNRS; UMR 6226, F -35000 Rennes France
| | - Thomas Groizard
- ISCR (Institut des Sciences Chimiques de Rennes); Univ Rennes, CNRS; UMR 6226, F -35000 Rennes France
| | - Boris Le Guennic
- ISCR (Institut des Sciences Chimiques de Rennes); Univ Rennes, CNRS; UMR 6226, F -35000 Rennes France
| | - Jean-François Halet
- ISCR (Institut des Sciences Chimiques de Rennes); Univ Rennes, CNRS; UMR 6226, F -35000 Rennes France
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17
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Preuß A, Notz S, Kovalski E, Korb M, Blaudeck T, Hu X, Schuster J, Miesel D, Rüffer T, Hildebrandt A, Schreiter K, Spange S, Schulz SE, Lang H. Ferrocenyl-Pyrenes, Ferrocenyl-9,10-Phenanthrenediones, and Ferrocenyl-9,10-Dimethoxyphenanthrenes: Charge-Transfer Studies and SWCNT Functionalization. Chemistry 2020; 26:2635-2652. [PMID: 31650632 PMCID: PMC7064959 DOI: 10.1002/chem.201904450] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Indexed: 11/06/2022]
Abstract
The synthesis of 1-Fc- (3), 1-Br-6-Fc- (5 a), 2-Br-7-Fc- (7 a), 1,6-Fc2 - (5 b), 2,7-Fc2 -pyrene (7 b), 3,6-Fc2 -9,10-phenanthrenedione (10), and 3,6-Fc2 -9,10-dimethoxyphenanthrene (12; Fc=Fe(η5 -C5 H4 )(η5 -C5 H5 )) is discussed. Of these compounds, 10 and 12 form 1D or 2D coordination polymers in the solid state. (Spectro)Electrochemical studies confirmed reversible Fc/Fc+ redox events between -130 and 160 mV. 1,6- and 2,7-Substitution in 5 a (E°'=-130 mV) and 7 a (E°'=50 mV) influences the redox potentials, whereas the ones of 5 b and 7 b (E°'=20 mV) are independent. Compounds 5 b, 7 b, 10, and 12 show single Fc oxidation processes with redox splittings between 70 and 100 mV. UV/Vis/NIR spectroelectrochemistry confirmed a weak electron transfer between FeII /FeIII in mixed-valent [5 b]+ and [12]+ . DFT calculations showed that 5 b non-covalently interacts with the single-walled carbon nanotube (SWCNT) sidewalls as proven by, for example, disentangling experiments. In addition, CV studies of the as-obtained dispersions confirmed exohedral attachment of 5 b at the SWCNTs.
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Affiliation(s)
- Andrea Preuß
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Sebastian Notz
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Eduard Kovalski
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Marcus Korb
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Current address: Faculty of Science, School of Molecular Sciences, The University of Western Australia, Crawley, Perth, WA, 6009, Australia
| | - Thomas Blaudeck
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany
| | - Xiao Hu
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany
| | - Jörg Schuster
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany.,Center for Advancing Electronics Dresden (cfaed), 09107, Chemnitz, Germany
| | - Dominique Miesel
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Tobias Rüffer
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Alexander Hildebrandt
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Katja Schreiter
- Faculty of Natural Sciences, Institute of Chemistry, Polymer Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Stefan Spange
- Faculty of Natural Sciences, Institute of Chemistry, Polymer Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Stefan E Schulz
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany.,Center for Advancing Electronics Dresden (cfaed), 09107, Chemnitz, Germany
| | - Heinrich Lang
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Center for Advancing Electronics Dresden (cfaed), 09107, Chemnitz, Germany
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18
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Hassenrück C, Azarkh M, Drescher M, Linseis M, Demeshko S, Meyer F, Winter RF. Redox Isomeric Ferrocenyl Styrylruthenium Radical Cations with Diphenyl-Substituted β-Ketoenolato Ligands. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00714] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christopher Hassenrück
- Universität Konstanz, Fachbereich Chemie, Universitätsstraße 10, D-78457 Konstanz, Germany
| | - Mykhailo Azarkh
- Universität Konstanz, Fachbereich Chemie, Universitätsstraße 10, D-78457 Konstanz, Germany
| | - Malte Drescher
- Universität Konstanz, Fachbereich Chemie, Universitätsstraße 10, D-78457 Konstanz, Germany
| | - Michael Linseis
- Universität Konstanz, Fachbereich Chemie, Universitätsstraße 10, D-78457 Konstanz, Germany
| | - Serhiy Demeshko
- Georg-August-Universität Göttingen, Institut für Anorganische Chemie, Tammannstraße 4, D-37077 Göttingen, Germany
| | - Franc Meyer
- Georg-August-Universität Göttingen, Institut für Anorganische Chemie, Tammannstraße 4, D-37077 Göttingen, Germany
| | - Rainer F. Winter
- Universität Konstanz, Fachbereich Chemie, Universitätsstraße 10, D-78457 Konstanz, Germany
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19
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Ou YAP, Hu Y, Xu M, Wang A, Liu SH. Rutheniumethynyl-triarylamine mixed-valence conjugated system: syntheses, (spectro-)electrochemistry, and theoretical calculations. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1695125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- YA-Ping Ou
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Functional Organometallic Materials of Hunan Province College, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, P.R. China
| | - Yuxuan Hu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, P.R. China
| | - Meng Xu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, P.R. China
| | - Aihui Wang
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Functional Organometallic Materials of Hunan Province College, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, P.R. China
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, P.R. China
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20
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Organometallic radicals of iron and ruthenium: Similarities and dissimilarities of radical reactivity and charge delocalization. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.02.036] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Roy SS, Patra SK. Synthesis and Characterization of Diferrocenyl Conjugates: Varying π-Conjugated Bridging Ligands and its Consequence on Electrochemical Communication. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sourav Saha Roy
- Department of Chemistry; Indian Institute of Technology Kharagpur; 721302 Kharagpur India
| | - Sanjib K. Patra
- Department of Chemistry; Indian Institute of Technology Kharagpur; 721302 Kharagpur India
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22
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Diphenylamine-Substituted Osmanaphthalyne Complexes: Structural, Bonding, and Redox Properties of Unusual Donor-Bridge-Acceptor Systems. Chemistry 2018; 24:18998-19009. [DOI: 10.1002/chem.201804025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Indexed: 11/07/2022]
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23
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Saha Roy S, Sil A, Giri D, Roy Chowdhury S, Mishra S, Patra SK. Diruthenium(ii)-capped oligothienylethynyl bridged highly soluble organometallic wires exhibiting long-range electronic coupling. Dalton Trans 2018; 47:14304-14317. [PMID: 29967914 DOI: 10.1039/c8dt01818a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organometallic molecular wires with π-conjugation along their molecular backbones are of considerable interest for application in molecular-scale electronics. In this regard, thienylethynyl-based π-conjugated oligomers of three, five and seven thienylethynyl units with -C[triple bond, length as m-dash]C-H termini have been successfully synthesized through stepwise Pd(0)/Cu(i)-catalyzed Sonogashira coupling. The corresponding highly soluble diruthenium(ii) diacetylide complexes (O1-Ru2, O3-Ru2, O5-Ru2 and O7-Ru2, respectively) have been prepared by the reaction of cis-Ru(dppe)2Cl2 and NaPF6 in DCM with the corresponding rigid rod-like thienylethynyl oligomers with one, three, five and seven thienylethynyl π-conjugated segments containing alkynyl termini (O1, O3, O5 and O7). These Ru(ii)-Cl capped diacetylide complexes have been further functionalized by incorporating a phenylacetynyl moiety to afford [Ru(ii)-C[triple bond, length as m-dash]C-Ph]-capped diacetylide organometallic wires (O1-Ru2-Ph, O3-Ru2-Ph, O5-Ru2-Ph and O7-Ru2-Ph). The photophysical properties of the highly soluble thienylethynyl-based oligomers and Ru(ii)-organometallic wires have been explored to understand their electronic properties. Electrochemical studies of the binuclear ruthenium(ii)-alkynyl complexes showed highly interesting results, revealing long-range electrochemical communication between the two remote Ru(ii) termini connected even with five and seven thienylethynyl units. DFT computational studies further support the long range electrochemical communication between the redox active metal termini through heavy participation of the thienylethynyl bridge in the corresponding mono-oxidized mixed valence species of the organometallic wire-like complexes.
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Affiliation(s)
- Sourav Saha Roy
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, WB, India.
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24
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Haque A, Al-Balushi RA, Al-Busaidi IJ, Khan MS, Raithby PR. Rise of Conjugated Poly-ynes and Poly(Metalla-ynes): From Design Through Synthesis to Structure-Property Relationships and Applications. Chem Rev 2018; 118:8474-8597. [PMID: 30112905 DOI: 10.1021/acs.chemrev.8b00022] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Conjugated poly-ynes and poly(metalla-ynes) constitute an important class of new materials with potential application in various domains of science. The key factors responsible for the diverse usage of these materials is their intriguing and tunable chemical and photophysical properties. This review highlights fascinating advances made in the field of conjugated organic poly-ynes and poly(metalla-ynes) incorporating group 4-11 metals. This includes several important aspects of conjugated poly-ynes viz. synthetic protocols, bonding, electronic structure, nature of luminescence, structure-property relationships, diverse applications, and concluding remarks. Furthermore, we delineated the future directions and challenges in this particular area of research.
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Affiliation(s)
- Ashanul Haque
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Rayya A Al-Balushi
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Idris Juma Al-Busaidi
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Muhammad S Khan
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Paul R Raithby
- Department of Chemistry , University of Bath , Claverton Down , Bath BA2 7AY , U.K
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25
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Zhang MX, Zhang J, Yin J, Hartl F, Liu SH. Anodic electrochemistry of mono- and dinuclear aminophenylferrocene and diphenylaminoferrocene complexes. Dalton Trans 2018; 47:6112-6123. [PMID: 29664488 DOI: 10.1039/c8dt00584b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two related three-membered series of nonlinear aminophenylferrocene and diphenylaminoferrocene complexes were prepared and characterized by 1H and 13C NMR spectroscopy. The first series consists of 4-(diphenylamino)phenylferrocene (TPA-Fc, 1a), its dimethoxy-substituted tetraphenylphenylenediamine derivative (M2TPPD-Fc, 1c), and the triphenylamine-bridged bis(ferrocenyl) complex (Fc-TPA-Fc, 1b). The second series involves bis(4-methoxyphenyl)aminoferrocene (M2DPA-Fc, 1d), 4-methoxyphenylaminoferrocene (MPA-Fc) with N-phenyl-appended terminal TPA (1e), and the corresponding bis(MPA-Fc) complex with bridging TPA (1f). The structure of complex 1d was further confirmed by single crystal X-ray diffraction. Combined investigations, based on anodic voltammetry, UV-vis-NIR spectroelectrochemistry and density functional theory (DFT) calculations, were conducted to illustrate the influence of the integration of multiple redox-active components on the sequential oxidation of these complexes. The first anodic steps in 1a-1f are localized preferentially on the ferrocenyl units, followed by oxidation of the TPA or TPPD moieties (absent in 1d). Irreversible oxidation of the ferrocene-appended strong donor DPA/MPA units in 1d-1f terminates the anodic series. The one-electron oxidation of the triphenylamine-bridged diferrocenyl (1b) and bis(phenylaminoferrocenyl) (1f) complexes triggers their facile redox disproportionation to dicationic bis(ferrocenium) products.
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Affiliation(s)
- Ming-Xing Zhang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China.
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26
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Pichaandi KR, Safronov LNAV, Sevryugina YV, Jalisatgi SS, Hawthorne MF. Electronic Interactions between Ferrocenyl Units Facilitated by the Cobalt Bis(dicarbollide) Anion Linker: An Experimental and DFT Study. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kothanda Rama Pichaandi
- International Institute of Nano and Molecular Medicine (I2NM2) School of Medicine University of Missouri 65211 Missouri, Columbia MO United States
| | | | - Yulia V. Sevryugina
- International Institute of Nano and Molecular Medicine (I2NM2) School of Medicine University of Missouri 65211 Missouri, Columbia MO United States
| | - Satish S. Jalisatgi
- International Institute of Nano and Molecular Medicine (I2NM2) School of Medicine University of Missouri 65211 Missouri, Columbia MO United States
| | - M. Frederick Hawthorne
- International Institute of Nano and Molecular Medicine (I2NM2) School of Medicine University of Missouri 65211 Missouri, Columbia MO United States
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27
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Fan Y, Li HM, Zou GD, Zhang X, Pan YL, Cao KK, Zhang ML, Ma PL, Lu HT. Diferrocenes Bridged by a Geminal Diethynylethene Scaffold with Varying Pendant Substituents: Electronic Interactions in Cross-Conjugated System. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00686] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yang Fan
- College of Chemistry
and Chemical Engineering, Xinyang Normal University, Xinyang 464000, People’s Republic of China
| | - Hua-Min Li
- College of Chemistry
and Chemical Engineering, Xinyang Normal University, Xinyang 464000, People’s Republic of China
| | - Guo-Dong Zou
- College of Chemistry
and Chemical Engineering, Xinyang Normal University, Xinyang 464000, People’s Republic of China
| | - Xu Zhang
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s Republic of China
| | - Ying-Le Pan
- College of Chemistry
and Chemical Engineering, Xinyang Normal University, Xinyang 464000, People’s Republic of China
| | - Ke-Ke Cao
- College of Chemistry
and Chemical Engineering, Xinyang Normal University, Xinyang 464000, People’s Republic of China
| | - Meng-Li Zhang
- College of Chemistry
and Chemical Engineering, Xinyang Normal University, Xinyang 464000, People’s Republic of China
| | - Pei-Lin Ma
- College of Chemistry
and Chemical Engineering, Xinyang Normal University, Xinyang 464000, People’s Republic of China
| | - Hai-Ting Lu
- College of Chemistry
and Chemical Engineering, Xinyang Normal University, Xinyang 464000, People’s Republic of China
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28
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Ou YP, Zhang J, Zhang MX, Zhang F, Kuang D, Hartl F, Liu SH. Bonding and Electronic Properties of Linear Diethynyl Oligothienoacene-Bridged Diruthenium Complexes and Their Oxidized Forms. Inorg Chem 2017; 56:11074-11086. [DOI: 10.1021/acs.inorgchem.7b01433] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ya-Ping Ou
- Key Laboratory of Pesticide and Chemical Biology, Ministry
of Education, College of Chemistry, Central China Normal University (CCNU), Wuhan 430079, P. R. China
| | - Jing Zhang
- Key Laboratory of Pesticide and Chemical Biology, Ministry
of Education, College of Chemistry, Central China Normal University (CCNU), Wuhan 430079, P. R. China
| | - Ming-Xing Zhang
- Key Laboratory of Pesticide and Chemical Biology, Ministry
of Education, College of Chemistry, Central China Normal University (CCNU), Wuhan 430079, P. R. China
| | | | | | - František Hartl
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry
of Education, College of Chemistry, Central China Normal University (CCNU), Wuhan 430079, P. R. China
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29
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Benzo[1,2-b;4,5-bʹ]dithiophene-bridged bimetal complexes with different redox-active terminals: Syntheses, characterization and charge delocalization studied by spectro-electrochemical and DFT methods. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.05.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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30
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Ou YP, Tang S, Wang A, Li J, Zhang F, Xu Z. Binuclear Ruthenium Complexes with Benzo[1,2-b;4,5-b′]dithiophene Analogues as Bridge Ligands: Syntheses, Characterization and Notable Difference on Electronic Coupling. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ya-Ping Ou
- College of Chemistry and Material Science; Hengyang Normal University; Key Laboratory of Functional Organometallic Materials of Hengyang Normal University, College of Hunan Province; Hengyang Hunan 421008 China
| | - Shunlin Tang
- College of Chemistry and Material Science; Hengyang Normal University; Key Laboratory of Functional Organometallic Materials of Hengyang Normal University, College of Hunan Province; Hengyang Hunan 421008 China
| | - Aihui Wang
- College of Chemistry and Material Science; Hengyang Normal University; Key Laboratory of Functional Organometallic Materials of Hengyang Normal University, College of Hunan Province; Hengyang Hunan 421008 China
| | - Junhua Li
- College of Chemistry and Material Science; Hengyang Normal University; Key Laboratory of Functional Organometallic Materials of Hengyang Normal University, College of Hunan Province; Hengyang Hunan 421008 China
| | - Fuxing Zhang
- College of Chemistry and Material Science; Hengyang Normal University; Key Laboratory of Functional Organometallic Materials of Hengyang Normal University, College of Hunan Province; Hengyang Hunan 421008 China
| | - Zhifeng Xu
- College of Chemistry and Material Science; Hengyang Normal University; Key Laboratory of Functional Organometallic Materials of Hengyang Normal University, College of Hunan Province; Hengyang Hunan 421008 China
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31
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Oßwald S, Breimaier S, Linseis M, Winter RF. Polyelectrochromic Vinyl Ruthenium-Modified Tritylium Dyes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00194] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Steffen Oßwald
- Fachbereich Chemie der Universität Konstanz, Universitätsstraße 10, D-78457 Konstanz, Germany
| | - Stefanie Breimaier
- Fachbereich Chemie der Universität Konstanz, Universitätsstraße 10, D-78457 Konstanz, Germany
| | - Michael Linseis
- Fachbereich Chemie der Universität Konstanz, Universitätsstraße 10, D-78457 Konstanz, Germany
| | - Rainer F. Winter
- Fachbereich Chemie der Universität Konstanz, Universitätsstraße 10, D-78457 Konstanz, Germany
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32
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Mackenzie CFR, Bock S, Lim CY, Skelton BW, Nervi C, Wild DA, Low PJ, Koutsantonis GA. Coordinating Tectons. Experimental and Computational Infrared Data as Tools To Identify Conformational Isomers and Explore Electronic Structures of 4-Ethynyl-2,2′-bipyridine Complexes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00086] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | - Carlo Nervi
- Dipartimento
di Chimica and NIS, Università degli Studi di Torino, 10125 Torino, Italy
- CIRCC, 70126 Bari, Italy
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33
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Zhang J, Guo SZ, Dong YB, Rao L, Yin J, Yu GA, Hartl F, Liu SH. Multistep Oxidation of Diethynyl Oligophenylamine-Bridged Diruthenium and Diiron Complexes. Inorg Chem 2017; 56:1001-1015. [PMID: 28045545 DOI: 10.1021/acs.inorgchem.6b02809] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Homo-dinuclear nonlinear complexes [{M(dppe)Cp*}2{μ-(-C≡C)2X}] (dppe = 1,2-bis(diphenylphosphino)ethane; Cp* = η5-C5Me5; X = triphenylamine (TPA), M = Ru (1a) and Fe (1b); X = N,N,N',N'-tetraphenylphenylene-1,4-diamine (TPPD), M = Ru (2a)) were prepared and characterized by 1H, 13C, and 31P NMR spectroscopy and single-crystal X-ray diffraction (1a, 2a). Attempts to prepare the diiron analogue of 2a were not successful. Experimental data obtained from cyclic voltammetry, square wave voltammetry, UV-vis-NIR (NIR = near-infrared) spectro-electrochemistry, and very informative IR spectro-electrochemistry in the C≡C stretching region, combined with density functional theory calculations, afford to make an emphasizing assessment of the close association between the metal-ethynyl termini and the oligophenylamine bridge core as well as their respective involvement in sequential one-electron oxidations of these complexes. The anodic behavior of the homo-bimetallic complexes depends strongly both on the metal center and the length of the oligophenylamine bridge core. The poorly separated first two oxidations of diiron complex 1b are localized on the electronically nearly independent Fe termini. In contrast, diruthenium complex 1a exhibits a significantly delocalized character and a marked electronic communication between the ruthenium centers through the diethynyl-TPA bridge. The ruthenium-ethynyl halves in 2a, separated by the doubly extended and more flexible TPPD bridge core, show a lower degree of electronic coupling, resulting in close-lying first two anodic waves and the NIR electronic absorption of [2a]+ with an indistinctive intervalence charge transfer character. Finally, the third anodic waves in the voltammetric responses of the homo-bimetallic complexes are associated with the concurrent exclusive oxidation of the TPA or TPPD bridge cores.
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Affiliation(s)
- Jing Zhang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China
| | - Shen-Zhen Guo
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China
| | - Yu-Bao Dong
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China
| | - Li Rao
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China
| | - Jun Yin
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China
| | - Guang-Ao Yu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China
| | - František Hartl
- Department of Chemistry, University of Reading , Whiteknights, Reading RG6 6AD, U.K
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China
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34
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Wang P, Hu Y, Zhan H, Chen J. Gas-phase conformational preference of the smallest saccharide (glycolaldehyde) and its hydrated complexes with bridged hydrogen bonding. RSC Adv 2017. [DOI: 10.1039/c6ra26965f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Glycoaldehyde (GA, HOCH2CHO) is the simplest sugar unit of the carbohydrates and the only sugar to have been detected in interstellar space to date.
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Affiliation(s)
- Pengchao Wang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science
- College of Biophotonics
- South China Normal University
- Guangzhou 510631
- P. R. China
| | - Yongjun Hu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science
- College of Biophotonics
- South China Normal University
- Guangzhou 510631
- P. R. China
| | - Huaqi Zhan
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science
- College of Biophotonics
- South China Normal University
- Guangzhou 510631
- P. R. China
| | - Jiaxin Chen
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science
- College of Biophotonics
- South China Normal University
- Guangzhou 510631
- P. R. China
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35
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Elaborately Tuning Intramolecular Electron Transfer Through Varying Oligoacene Linkers in the Bis(diarylamino) Systems. Sci Rep 2016; 6:36310. [PMID: 27805023 PMCID: PMC5090870 DOI: 10.1038/srep36310] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 10/13/2016] [Indexed: 12/02/2022] Open
Abstract
The research efforts on oligoacene systems are still relatively limited mainly due to the synthetic challenge and the extreme instability of longer acenes. Herein, these two issues have been overcome through elaborative modification and the stable pentacene species has been successfully synthesized. Additionally, a series of bis(diarylamino) compounds linked by variable-length oligoacene bridges ranging from one to five fused rings (benzene (1a), naphthalene (1b), anthracene (1c), tetracene (1d) and pentacene (1e)) have been prepared to probe the effect of the extent of π-conjugation on the electron transfer properties. Compound 1c exhibits a high planarity between the anthracyl bridge and the two nitrogen cores and the molecular packing shows a two-dimensional herringbone characteristic. Combined studies based on electrochemistry and spectroelectrochemistry demonstrate that (i) the electronic coupling across the oligoacene linkers between two diarylamine termini exponentially decrease with a moderate attenuation constant (β) of 0.14 Å−1 in these length-modulated systems and (ii) the associated radical cations [1a]+–[1e]+ are classified as the class II Robin–Day mixed-valence systems. Furthermore, density functional theory (DFT) calculations have been conducted to gain insight into the nature of electron transfer processes in these oligoacene systems.
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36
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37
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Kaim W. Electron Transfer Reactivity of Organometallic Compounds Involving Radical-Forming Noninnocent Ligands. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES 2016. [DOI: 10.1007/s40010-016-0304-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Gluyas JBG, Gückel S, Kaupp M, Low PJ. Rational Control of Conformational Distributions and Mixed-Valence Characteristics in Diruthenium Complexes. Chemistry 2016; 22:16138-16146. [DOI: 10.1002/chem.201603236] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Josef B. G. Gluyas
- School of Chemistry and Biochemistry; University of Western Australia; 35 Stirling Highway Crawley 6009 Australia
| | - Simon Gückel
- Institut für Chemie; Technische Universität Berlin, Sekr. C7; Strasse des 17. Juni 135 10623 Berlin Germany
| | - Martin Kaupp
- Institut für Chemie; Technische Universität Berlin, Sekr. C7; Strasse des 17. Juni 135 10623 Berlin Germany
| | - Paul J. Low
- School of Chemistry and Biochemistry; University of Western Australia; 35 Stirling Highway Crawley 6009 Australia
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39
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Zhong YW, Gong ZL, Shao JY, Yao J. Electronic coupling in cyclometalated ruthenium complexes. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.01.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Kang MT, Meng M, Tan YN, Cheng T, Liu CY. Tuning the Electronic Coupling and Electron Transfer in Mo2 Donor-Acceptor Systems by Variation of the Bridge Conformation. Chemistry 2016; 22:3115-26. [PMID: 26807909 DOI: 10.1002/chem.201504033] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Indexed: 11/12/2022]
Abstract
Assembling two quadruply bonded dimolybdenum units [Mo2 (DAniF)3 ](+) (DAniF=N,N'-di(p-anisyl)formamidinate) with 1,4-naphthalenedicarboxylate and its thiolated derivatives produced three complexes [{Mo2 (DAniF)3 }2 (μ-1,4-O2 CC10 H6 CO2 )], [{Mo2 (DAniF)3 }2 (μ-1,4-OSCC10 H6 COS)], and [{Mo2 (DAniF)3 }2 (μ-1,4-S2 CC10 H6 CS2 )]. In the X-ray structures, the naphthalene bridge deviates from the plane defined by the two Mo-Mo bond vectors with the torsion angle increasing as the chelating atoms of the bridging ligand vary from O to S. The mixed-valent species exhibit intervalence transition absorption bands with high energy and very low intensity. In comparison with the data for the phenylene analogues, the optically determined electronic coupling matrix elements (Hab =258-345 cm(-1) ) are lowered by a factor of two or more, and the electron-transfer rate constants (ket ≈10(11) s(-1) ) are reduced by about one order of magnitude. These results show that, when the electron-transporting ability of the bridge and electron-donating (electron-accepting) ability of the donor (acceptor) are both variable, the former plays a dominant role in controlling the intramolecular electron transfer. DFT calculations revealed that increasing the torsion angle enlarges the HOMO-LUMO energy gap by elevating the (bridging) ligand-based LUMO energy. Therefore, our experimental results and theoretical analyses verify the superexchange mechanism for electronic coupling and electron transfer.
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Affiliation(s)
- Mei Ting Kang
- Department of Chemistry, Jinan University, 601 Huang-Pu Avenue West, Guangzhou, P.R. China
| | - Miao Meng
- Department of Chemistry, Jinan University, 601 Huang-Pu Avenue West, Guangzhou, P.R. China
| | - Ying Ning Tan
- Department of Chemistry, Jinan University, 601 Huang-Pu Avenue West, Guangzhou, P.R. China
| | - Tao Cheng
- Department of Chemistry, Jinan University, 601 Huang-Pu Avenue West, Guangzhou, P.R. China
| | - Chun Y Liu
- Department of Chemistry, Jinan University, 601 Huang-Pu Avenue West, Guangzhou, P.R. China.
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41
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Zhang J, Sun CF, Zhang MX, Hartl F, Yin J, Yu GA, Rao L, Liu SH. Asymmetric oxidation of vinyl- and ethynyl terthiophene ligands in triruthenium complexes. Dalton Trans 2016; 45:768-82. [DOI: 10.1039/c5dt04083c] [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
Newly synthesized open-triangle triruthenium vinyl and ethynyl terthiophene complexes exhibit stepwise laterally localized oxidation processes, as revealed by UV-vis-NIR and IR spectroelectrochemistry.
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Affiliation(s)
- Jing Zhang
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Chao-Fang Sun
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Ming-Xing Zhang
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - František Hartl
- Department of Chemistry
- University of Reading
- Reading RG6 6AD
- UK
| | - Jun Yin
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Guang-Ao Yu
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Li Rao
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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42
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Ou YP, Zhang J, Zhang F, Kuang D, Hartl F, Rao L, Liu SH. Notable differences between oxidized diruthenium complexes bridged by four isomeric diethynyl benzodithiophene ligands. Dalton Trans 2016; 45:6503-16. [DOI: 10.1039/c6dt00109b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Isomeric benzodithiophenes in the core of a diethynyl bridge have a strong impact on the stability and electronic properties of oxidized diruthenium complexes.
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Affiliation(s)
- Ya-Ping Ou
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Jing Zhang
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Fuxing Zhang
- College of Chemistry and Material Science
- Hengyang Normal University
- Hengyang
- P. R. China
- Key Laboratory of Functional Organometallic Materials of Hunan Province College
| | - Daizhi Kuang
- College of Chemistry and Material Science
- Hengyang Normal University
- Hengyang
- P. R. China
- Key Laboratory of Functional Organometallic Materials of Hunan Province College
| | - František Hartl
- Department of Chemistry
- University of Reading
- Reading RG6 6AD
- UK
| | - Li Rao
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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