Organoosmium complexes of imidazole-containing chelate acceptor ligands

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F10%3A00349255" target="_blank" >RIV/61388955:_____/10:00349255 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Organoosmium complexes of imidazole-containing chelate acceptor ligands

Original language description

The complexes [(L)Os(eta(6)-Cym)Cl](PF6), Cym = p-cymene and L = bis(1-methylimidazol-2-yl) ketone (bik) or bis(1-methylimidazol-2-yl) glyoxal (big), were obtained and characterized with respect to spectroscopy, crystal structure (big complex) and (spectro)electrochemical behaviour at variable temperatures. DFT calculations confirm the structure of [(big)Os(eta(6)-Cym)Cl](+) with imidazolyl-N-bonded Os-II in a boat-shaped seven-membered chelate ring with small N-Os-N angles (<84 degrees). Reduction of this compound proceeds reversibly to a neutral complex of the alpha-semidione radical anion ligand big; EPR and IR spectroelectrochemistry indicate very little participation from the heavy metal in the spin distribution. The analogous [(bik)Os(eta(6)-Cym)Cl](+) could not be reduced reversibly to the ketyl radical complex but displayed a more reversible oxidation at high potential.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

<a href="/en/project/OC09043" target="_blank" >OC09043: Properties and dynamics of electronic states of transition metal complexes</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Inorganica chimica acta

ISSN

0020-1693

e-ISSN

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Volume of the periodical

363

Issue of the periodical within the volume

12

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

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UT code for WoS article

000282360200051

EID of the result in the Scopus database

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