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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: 1.8] [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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Bruce MI, Costuas K, Ellis BG, Halet JF, Low PJ, Moubaraki B, Murray KS, Ouddaï N, Perkins GJ, Skelton BW, White AH. Redox-Active Complexes Containing Group 8 Metal Centers Linked by C2 Bridges. Organometallics 2007. [DOI: 10.1021/om7002859] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael I. Bruce
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France, Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England, School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Departement de Chimie, Université de Batna, Rue Boukhlouf, 05000 Batna, Algeria, and Chemistry M313, SBBCS, University of Western Australia, Crawley,
| | - Karine Costuas
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France, Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England, School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Departement de Chimie, Université de Batna, Rue Boukhlouf, 05000 Batna, Algeria, and Chemistry M313, SBBCS, University of Western Australia, Crawley,
| | - Ben G. Ellis
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France, Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England, School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Departement de Chimie, Université de Batna, Rue Boukhlouf, 05000 Batna, Algeria, and Chemistry M313, SBBCS, University of Western Australia, Crawley,
| | - Jean-François Halet
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France, Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England, School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Departement de Chimie, Université de Batna, Rue Boukhlouf, 05000 Batna, Algeria, and Chemistry M313, SBBCS, University of Western Australia, Crawley,
| | - Paul J. Low
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France, Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England, School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Departement de Chimie, Université de Batna, Rue Boukhlouf, 05000 Batna, Algeria, and Chemistry M313, SBBCS, University of Western Australia, Crawley,
| | - Boujemaa Moubaraki
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France, Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England, School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Departement de Chimie, Université de Batna, Rue Boukhlouf, 05000 Batna, Algeria, and Chemistry M313, SBBCS, University of Western Australia, Crawley,
| | - Keith S. Murray
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France, Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England, School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Departement de Chimie, Université de Batna, Rue Boukhlouf, 05000 Batna, Algeria, and Chemistry M313, SBBCS, University of Western Australia, Crawley,
| | - Nadia Ouddaï
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France, Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England, School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Departement de Chimie, Université de Batna, Rue Boukhlouf, 05000 Batna, Algeria, and Chemistry M313, SBBCS, University of Western Australia, Crawley,
| | - Gary J. Perkins
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France, Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England, School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Departement de Chimie, Université de Batna, Rue Boukhlouf, 05000 Batna, Algeria, and Chemistry M313, SBBCS, University of Western Australia, Crawley,
| | - Brian W. Skelton
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France, Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England, School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Departement de Chimie, Université de Batna, Rue Boukhlouf, 05000 Batna, Algeria, and Chemistry M313, SBBCS, University of Western Australia, Crawley,
| | - Allan H. White
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Laboratoire des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France, Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England, School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Departement de Chimie, Université de Batna, Rue Boukhlouf, 05000 Batna, Algeria, and Chemistry M313, SBBCS, University of Western Australia, Crawley,
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