ENDOR study of VO/sup 2 +/-imidazole complexes in frozen aqueous solution

Journal Article · Wed Nov 03 04:00:00 EST 1982 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00386a011· OSTI ID:6390226

Mulks, C F; Kirste, B; van Willigen, H

Complexes formed between the oxovanadium(IV) cation and imidazole, carnosine, and histidine have been studied with ENDOR. It is shown that the technique gives information on proton and nitrogen hyperfine coupling components as well as /sup 14/N quadrupole splittings. The data provide insight into the geometric structure of the complexes. The results presented indicate that ENDOR studies of VO/sup 2 +/ binding to more complex systems of biological interest (such as proteins) can be used to identify binding to histidine moieties. Furthermore, such studies could be of help in establishing the binding site geometry.

• Research Organization: Univ. of Massachusetts at Boston
• DOE Contract Number: AC02-81ER10911
• OSTI ID: 6390226
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 104:22; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
AZOLES
CHALCOGENIDES
CHEMICAL BONDS
COMPLEXES
COUPLING CONSTANTS
DATA
ENDOR
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
IMIDAZOLES
INFORMATION
MAGNETIC RESONANCE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RESONANCE
TRANSITION ELEMENT COMPLEXES
VANADIUM COMPLEXES