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Handali JD, Sunden KF, Thompson BJ, Neff-Mallon NA, Kaufman EM, Brunold TC, Wright JC. Three Dimensional Triply Resonant Sum Frequency Spectroscopy Revealing Vibronic Coupling in Cobalamins: Toward a Probe of Reaction Coordinates. J Phys Chem A 2018; 122:9031-9042. [PMID: 30365322 DOI: 10.1021/acs.jpca.8b07678] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Triply resonant sum frequency (TRSF) spectroscopy is a fully coherent mixed vibrational-electronic spectroscopic technique that is ideally suited for probing the vibrational-electronic couplings that become important in driving reactions. We have used cyanocobalamin (CNCbl) and deuterated aquacobalamin (D2OCbl+) as model systems for demonstrating the feasibility of using the selectivity of coherent multidimensional spectroscopy to resolve electronic states within the broad absorption spectra of transition metal complexes and identify the nature of the vibrational and electronic state couplings. We resolve three short and long axis vibrational modes in the vibrationally congested 1400-1750 cm-1 region that are individually coupled to different electronic states in the 18 000-21 000 cm-1 region but have minimal coupling to each other. Double resonance with the individual vibrational fundamentals and their overtones selectively enhances the corresponding electronic resonances and resolves features within the broad absorption spectrum. This work demonstrates the feasibility of identifying coupling between different pairs of vibrational states with different electronic states that together form the reaction coordinate surface of transition metal enzymes.
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Affiliation(s)
- Jonathan D Handali
- Department of Chemistry , University of Wisconsin-Madison , Madison Wisconsin 53706 , United States
| | - Kyle F Sunden
- Department of Chemistry , University of Wisconsin-Madison , Madison Wisconsin 53706 , United States
| | - Blaise J Thompson
- Department of Chemistry , University of Wisconsin-Madison , Madison Wisconsin 53706 , United States
| | - Nathan A Neff-Mallon
- Department of Chemistry , University of Wisconsin-Madison , Madison Wisconsin 53706 , United States
| | - Emily M Kaufman
- Department of Chemistry , University of Wisconsin-Madison , Madison Wisconsin 53706 , United States
| | - Thomas C Brunold
- Department of Chemistry , University of Wisconsin-Madison , Madison Wisconsin 53706 , United States
| | - John C Wright
- Department of Chemistry , University of Wisconsin-Madison , Madison Wisconsin 53706 , United States
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Maurya R, Chourasia J, Martin M, Roy S, Sharma A, Vishwakarma P. Dioxomolybdenum(VI) chelates of bioinorganic, catalytic, and medicinal relevance: Studies on some cis-dioxomolybdenum(VI) complexes involving O, N-donor 4-oximino-2-pyrazoline-5-one derivatives. ARAB J CHEM 2015. [DOI: 10.1016/j.arabjc.2011.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Smith AL, Clapp LA, Hardcastle KI, Soper JD. Redox-active ligand-mediated Co–Cl bond-forming reactions at reducing square planar cobalt(III) centers. Polyhedron 2010. [DOI: 10.1016/j.poly.2009.06.046] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Chandra S, Pipil P, Sharma SD. SYNTHESIS, EPR, AND ELECTRONIC SPECTRAL STUDIES ON Cr(III) AND Mn(II) COMPLEXES OF SOME OXIMES. ACTA ACUST UNITED AC 2007. [DOI: 10.1081/sim-100104850] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kudryavtsev AB, Frauendienst G, Linert W. SOLVENT-DEPENDENT VARIATION OF THE SPIN STATE OF BIS(SALICYLALDOXIMATO) NICKEL(II) IN NONAQUEOUS SOLUTIONS. J COORD CHEM 2006. [DOI: 10.1080/00958979808053733] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- A. B. Kudryavtsev
- a Institute of Inorganic Chemistry, Technical University Vienna , Getreidemarkt 9, A-1060, Vienna, Austria
- b NMR Laboratory, D. Mendeleev University of Chemical Technology of Russia , 125047, Moscow, Russia
| | - G. Frauendienst
- a Institute of Inorganic Chemistry, Technical University Vienna , Getreidemarkt 9, A-1060, Vienna, Austria
| | - W. Linert
- a Institute of Inorganic Chemistry, Technical University Vienna , Getreidemarkt 9, A-1060, Vienna, Austria
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Zheng G, Stradiotto M, Li L. An electrochemical and spectroelectrochemical (IR) investigation of the reduction of RCo(II)TPP (R=benzyl or butyl; TPP=tetraphenylporphyrin): mechanistic implications in the CoTPP catalyzed electrocarboxylation of alkyl halides. J Electroanal Chem (Lausanne) 1998. [DOI: 10.1016/s0022-0728(98)00173-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Alexander V. Synthesis, characterization and electrochemical investigation of cobalt(III) complexes of 3,8-dimethyl-5,6-benzo-4,7-diazadeca-3,7-diene-2,9-dione dioxime with sulfur ligands in the axial sites. Inorganica Chim Acta 1989. [DOI: 10.1016/s0020-1693(00)83444-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Alexander V. Synthesis, characterization and spectrochemistry, electrochemistry and spectroelectrochemistry of bromo (Lewis base) cobalt(III) complexes of 3,8-dimethyl-5,6-benzo-4,7-diazadeca-3,7-diene-2,9-dione dioxime. Inorganica Chim Acta 1989. [DOI: 10.1016/s0020-1693(00)87139-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Vitamin B12 and coenzyme B12 models. II. An electrochemical investigation on alkyl- and (non-alkyl)cobalt(III) complexes of 3,8-dimethyl-5,6-benzo-4,7-diazadeca-3,7-diene-2,9-dione dioxime by cyclic voltammetry and polarography. Inorganica Chim Acta 1989. [DOI: 10.1016/s0020-1693(00)90378-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Natarajan E, Natarajan P. Kinetics of the formation of a cobalt(III)-alkyl complex by the intramolecular oxidation of cobalt(II) by the coordinated free radical. Inorganica Chim Acta 1989. [DOI: 10.1016/s0020-1693(00)89269-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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