ISSN:
1435-1536
Keywords:
27 Al ENDOR
;
vanadyl
;
δ-Alumina
;
inner-sphere surface coordination
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract A27 Al ENDOR study on the vanadyl aquoion adsorbed on hydrous δ-alumina is reported. The observed aluminium hyperfine interaction of 7.2 MHz is interpreted in terms of an inner-sphere surface coordination model. The magnitude of the coupling is attributed to spin delocalization from the vanadyl moiety to surface bound aluminium centers. It is concluded that equatorial positions of the VO aq 2+ fragment are occupied by surface functional groups. Proton ENDOR spectra confirm the presence of both axial and equatorial water ligands.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01451522
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