Concerning isomerisms and interconversions of 2 : 18 and 2 : 17 heteropoly complexes and their derivatives
- 1 January 1979
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 17,p. 777-779
- https://doi.org/10.1039/c39790000777
Abstract
Contrary to recent interpretations, it is demonstrated by 183W n.m.r. and by VIV e.s.r. spectroscopy that: (i) the α2 isomer of [(PO4)2W17O53]10–, and its α2[(PO4)2VW17O54]8– derivative, differ from α-[PO4)2W18-O54]6– by absence of a W atom from one of the 3-fold W3O13 groups which cap the ends of the latter complex, rather than by removal or substitution of one W atom from the 12 which are around the complex's ‘belt’; and (ii)β-[(PO4)2W18O54]6– differs from its α isomer by a 60° rotation, about its 3-fold axis, of one of the ‘cap’ W3O13 groups rather than by a 60° rotation of one PW9‘half-unit’ relative to the other one.Keywords
This publication has 0 references indexed in Scilit: