Syntheses of the B(8)-hydroxy- and B(8,8 )-dihydroxy-derivatives of the bis(1,2-dicarbollido)-3-cobalt(1-)ate ion by its reductive acetoxylation and hydroxylation: molecular structure of [8,8 - -CH3C(O)2(1,2-C2B9H10)2-3-Co]0 zwitterion determined by X-ra

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F02%3A50025007" target="_blank" >RIV/61388980:_____/02:50025007 - 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
Syntheses of the B(8)-hydroxy- and B(8,8 )-dihydroxy-derivatives of the bis(1,2-dicarbollido)-3-cobalt(1-)ate ion by its reductive acetoxylation and hydroxylation: molecular structure of [8,8 - -CH3C(O)2(1,2-C2B9H10)2-3-Co]0 zwitterion determined by X-ra
Original language description
Preparative routes to 8-hydroxy-bis(1,2-dicarbollido)-3-cobalt(1-)ate (2) and 8,8 -dihydroxy-bis(1,2-dicarbollido)-3-cobalt(1-)ate (3) ions are reported by the reductive acetoxylation of the parent bis(dicarbollido)cobaltate ion (1) followed by hydrolysis of the intermediates. The essential reagent is acetic anhydride, and strong acids are required as catalysts. For the hydroxyderivative ion 2 the simultaneous presence of acetic acid brings benefit, whereas it is detrimental for the formation of the dihydroxyderivative 3. Reaction intermediate leading to the dihydroxy derivative is the already reported [8,8 - -CH3C(O)2(1,2-C2B9H10)2-3-Co]0 zwitterion. This compound was adequately characterised for the first time and its molecular structure as determined by X-ray diffraction analysis is presented. Both B-hydroxylated bis(dicarbollido)-ions can be alternatively obtained on the direct hydroxylation of the parent ion by hot 60-80 sulphuric acid. Optimised synthetic procedures and the main
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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