Preparative Inorganic Chemistry
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ChemInform Abstract: Relationship Between Tungstophosphates Related to the PW12O3- 40 Anion. Synthesis and Properties of a New Lacunary Polyoxotungstophosphate, K10P2W20O70·24 H2O.
First published: September 1, 1987
Abstract
Acidification of a mixture of potassium tungstate and H3PO4 with HCl results in the precipitation of the title compound (no yield given).
ChemInform Abstract
Acidification of a mixture of potassium tungstate and H3PO4 with HCl results in the precipitation of the title compound (no yield given). The lacunary species reacts with Co(II) to give two 1-1 complexes, probably coordination isomers. In the presence of Co(II), the A-type to B-type PW9 isomerization occurs in several steps, which are specified. The tungstophosphate β-isomers are less stablethan the corresponding tungstosilicates or -germanates, and β-PW12 is only identified as a reduced species PW12O44-0 (IR and Raman spectroscopy, 31P and 183W NMR).
