UnissResearch

Logo Universitàegli studi di Sassari
titoli, abstracts, parole chiave >>>
EPR and proton ENDOR study of the solution equilibria of bis(2-ethyl-2-hydroxybutanoato(2-))oxochromate(V) and bis(2-hydroxy-2-methylbutanoato(2-))oxochromate(V)

Branca, Mario and Dessì, Alessandro and Micera, Giovanni and Sanna, Daniele (1993) EPR and proton ENDOR study of the solution equilibria of bis(2-ethyl-2-hydroxybutanoato(2-))oxochromate(V) and bis(2-hydroxy-2-methylbutanoato(2-))oxochromate(V). Inorganic Chemistry, Vol. 32 (5), p. 578-581. eISSN 1520-510X. Article.

Full text not available from this repository.

DOI: 10.1021/ic00057a015

Abstract

The behavior of the bischelated oxochromium(V) complex of 2-ethyl-2-hydroxybutanoate(2-) and its 2-hydroxy- 2-methylbutanoate(2-) analogue has been reexamined by EPR and H ENDOR spectroscopy in a range of solvents. It has been confirmed that the complexes rearrange in solution to yield two species which are in equilibrium, the kinetics of the process being dependent on the nature of the solvent. The results rule out that such a rearrangement is due to an acid-base process involving the alcoholic group of one of the ligands and suggest that the two species are the cis and trans isomeric forms of the bischelated complex, both exhibiting a distorted five-coordinate geometry.

Item Type:Article
ID Code:1415
Status:Published
Refereed:Yes
Uncontrolled Keywords:EPR, H ENDOR, acid-base process, alcoholic groups, bischelated complex
Subjects:Area 03 - Scienze chimiche > CHIM/03 Chimica generale e inorganica
Area 03 - Scienze chimiche > CHIM/02 Chimica fisica
Divisions:001 Università di Sassari > 01 Dipartimenti > Chimica
002 Altri enti e centri di ricerca del Nord Sardegna > CNR-Consiglio Nazionale delle Ricerche > Istituto di chimica biomolecolare, Sassari
Publisher:American Chemical Society
eISSN:1520-510X
Deposited On:18 Aug 2009 10:05

I documenti depositati in UnissResearch sono protetti dalle leggi che regolano il diritto d'autore

Repository Staff Only: item control page