POLYOXOMETALATE-DIPHOSPHATE COMPLEXES .4. STRUCTURE OF NA-4[(O3PCHN(CH3)(2)PO3)W2O6]CENTER-DOT-11H(2)O

Authors
KORTZ U POPE MT
Citation
U. Kortz et Mt. Pope, POLYOXOMETALATE-DIPHOSPHATE COMPLEXES .4. STRUCTURE OF NA-4[(O3PCHN(CH3)(2)PO3)W2O6]CENTER-DOT-11H(2)O, Inorganic chemistry, 34(14), 1995, pp. 3848-3850
Citations number
6
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Inorganic chemistry → ACNP
ISSN journal
00201669
Volume
34
Issue
14
Year of publication
1995
Pages
3848 - 3850
Database
ISI
SICI code
0020-1669(1995)34:14<3848:PC.SON>2.0.ZU;2-6
Abstract
Structural analysis of the sodium salt of ([(O3PCHN(CH3)(2)PO3)W2O6](4 -))infinity revealed a novel polymeric heteropolyanion of tungsten whi ch is composed of negatively-charged chains where [(O3PCHN(CH3)(2)PO3) W2O6](4-) (I) is the repeat unit. I comprises two corner-shared WO6 oc tahedra and one (dimethylamino)methylenediphosphonate hetero group. In the polymer, the monomeric units are linked to give an undulating cha in in which the hetero groups alternate up and down. In each chain the tungsten atoms and their bridging oxygens can be viewed as the planar backbone describing a sine wave.