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Unusually stable chromium(V) perfluoropinacolate complexes by H. Nishino; J.K. Kochi is a Chemistry article available to read on EtoBox.
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## Ligand substitution of chromyl chloride with the chelating dilithium perfluoropinacolate Li,(PFP) does not afford the desired chromyl perfluoropinacolate O,Cr(PFP) as previously reported. Instead a facile reductive di-substitution of OzCrClz occurs to yield bis(perfluoropinacolato)oxochromate(V), OCr-(PFP),-, and its structure is established as the pyridinium-pyridine salt II by X-ray crystallography. The selective hydrolysis of II affords an unusual binuclear bis+oxochromate(V) salt V, the X-ray crystal structure of which consists of unique chains of binuclear chromium(V) dianions [OCr(PFP)+-0] :that are linked by aquo-lithium ion bridges. The relationship of these unusually stable oxochromate(V) salts to the previously reported simple alkali salts of OCr(PFP),-and potassium bis(2-hydroxy-2-methylbutyrato)oxochromate(V) is discussed.
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- Author
- H. Nishino; J.K. Kochi
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0020-1693)
- Published
- 1990
- Language
- EN
- Field
- Chemistry (Physical Sciences)