title: Functionalization of heteropolyanions-osmium and rhenium nitrido derivatives of Keggin- and Dawson-type polyoxotungstates: synthesis, characterization and multinuclear ((183)W, (15)N) NMR, EPR, IR, and UV/Vis fingerprints.
abstract: Reaction of K(10)[alpha(2)-P(2)W(17)O(61)] or K(10)[alpha(1)-P(2)W(17)O(61)] or [Bu(4)N][OsCl(4)N] in a water/methanol mixture, and subsequent precipitation with (Bu(4)N)Br provided [alpha(2)-P(2)W(17)O(61){Os(VI)N}](7-) and [alpha(1)-P(2)W(17)O(61){Os(VI)N}](7-) Dawson structures as tetrabutylammonium salts. Reactions of [(Bu(4)N)(4)][alpha-H(3)PW(11)O(39)] with either [ReCl(3)(N(2)Ph(2))(PPh(3))(2)] or [Bu(4)N][ReCl(4)N] are alternatives to the synthesis of [(Bu(4)N)(4)][alpha-PW(11)O(39){Re(VI)N}]. (183)W and (15)N NMR, EPR, IR, and UV-visible spectroscopies and cyclic voltammetry have been used to characterize these compounds and the corresponding [(Bu(4)N)(4)][alpha-PW(11)O(39){Os(VI)N}] Keggin derivative.
authors.affiliation: Université Pierre et Marie Curie-Paris6, Institut de Chimie Moléculaire FR 2769, Laboratoire de Chimie Inorganique et Matériaux Moléculaires UMR CNRS 7071, 4 Place Jussieu, Case 42, 75252 Paris Cedex 05, France.
authors.forename: Céline
authors.initials: C
authors.lastname: Dablemont
authors.forename: Christopher G
authors.initials: CG
authors.lastname: Hamaker
authors.forename: René
authors.initials: R
authors.lastname: Thouvenot
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Sojka
authors.forename: Michel
authors.initials: M
authors.lastname: Che
authors.forename: Eric A
authors.initials: EA
authors.lastname: Maatta
authors.forename: Anna
authors.initials: A
authors.lastname: Proust