An Iminosemiquinone-Coordinated Oxidovanadium(V) Complex: A Combined Experimental and Computational Study
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F17%3A00477567" target="_blank" >RIV/61388963:_____/17:00477567 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1021/acs.inorgchem.7b00789" target="_blank" >http://dx.doi.org/10.1021/acs.inorgchem.7b00789</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.inorgchem.7b00789" target="_blank" >10.1021/acs.inorgchem.7b00789</a>
Alternative languages
Result language
angličtina
Original language name
An Iminosemiquinone-Coordinated Oxidovanadium(V) Complex: A Combined Experimental and Computational Study
Original language description
Ligand H(4)Sar((AP/AP)) contained two terminal amidophenolate units that were connected by a disulfane bridge. The ligand reacted with VOSO4 center dot 5H(2)O in the presence of Et3N under air and provided a mononuclear octahedral oxidovanadium complex (1). X-ray crystal structure analysis of complex 1 revealed that the oxidation state of the V ion was V and the VO3+ unit was coordinated to an iminosemiquinone radical anion. An isotopic signal at g = 1.998 in the X-band electron paramagnetic resonance (EPR) spectrum and the solution magnetic moment mu(eff) = 1.98 mu(B) at 298 K also supported the composition. The formation of complex 1 preceded through the initial generation of a diamagnetic VO2+-iminoisemiquinone species, as established by time-dependent UV-vis-near-IR (NIR), X-band EPR, and density functional theory studies. The UV-vis-NIR spectrum of complex 1 consisted of four ligand-to-metal charge-transfer transitions in the visible region, while an intervalence ligand-to-ligand charge transfer appeared at 1162 rim. The cyclic voltammogram of the complex showed four oxidation waves and one reduction wave. Spectroelectrochemical studies at fixed potentials revealed that the oxidation and reduction processes were ligand-based.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Inorganic Chemistry
ISSN
0020-1669
e-ISSN
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Volume of the periodical
56
Issue of the periodical within the volume
14
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
8068-8077
UT code for WoS article
000405972200051
EID of the result in the Scopus database
2-s2.0-85024369895