title: Synthesis and characterization of [PW11O39Ir(H2O)]4-: successful incorporation of Ir into polyoxometalate framework and study of the substitutional lability at the Ir(III) site.
abstract: The first Keggin-type heteropolyanion, [PW(11)O(39)Ir(H(2)O)](4-) (1), was synthesized by hydrothermal reaction from two different polytungstate precursors and [IrF(6)](2-). It was isolated as (Bu(4)N)(4)[PW(11)O(39)Ir(H(2)O)] (1a), which was completely characterized by multinuclear (31)P and (183)W NMR, ESI-mass spectrometry and cyclic voltammetry. A rapid screening methodology to ascertain the intrinsic substitutional lability at the Ir site is also presented, based on ESI-MS.
authors.affiliation: Nikolaev Institute of Inorganic Chemistry SB RAS, 630090, Lavrentieva st. 3, Novosibirsk, Russia. caesar@niic.nsc.ru
authors.forename: Maxim N
authors.initials: MN
authors.lastname: Sokolov
authors.forename: Sergey A
authors.initials: SA
authors.lastname: Adonin
authors.forename: Dmitry A
authors.initials: DA
authors.lastname: Mainichev
authors.forename: Cristian
authors.initials: C
authors.lastname: Vicent
authors.forename: Nina F
authors.initials: NF
authors.lastname: Zakharchuk
authors.forename: Andrey M
authors.initials: AM
authors.lastname: Danilenko
authors.forename: Vladimir P
authors.initials: VP
authors.lastname: Fedin