ChemInform Abstract: Theoretical Study of the Relative Stabilities of the α/β3-[XW11O39]m-Lacunary Polyoxometalates (X: P, Si)

Autor: Anna Proust, Hélène Gérard, Danielle Laurencin
Rok vydání: 2008
Předmět:
Zdroj: ChemInform. 39
ISSN: 1522-2667
0931-7597
Popis: A computational study of the relative stability of the monolacunary Keggin polyoxotungstates alpha and beta 3-[XW 11O 39] ( m- ) (X = P, m = 7; X = Si, m = 8) was performed. The influence of the nature of different grafted cations and of the central anion XO 4 ( n- ) on the relative stabilities of the lacunary isomers was analyzed. From these results, an interpretation of the structural difference in the metallic frameworks of alpha-[PW 11O 39{Ru(DMSO) 3(H 2O)}] (5-), alpha-[PW 11O 39{Ru(C 6H 6)(H 2O)}] (5-), and beta 3-[SiW 11O 39{Ru(DMSO) 3(H 2O)}] (6-) is proposed, and conclusions are drawn as to how to favor the formation of beta 3 derivatives in future syntheses.
Databáze: OpenAIRE