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

Maxim N Sokolov; Sergey A Adonin; Dmitry A Mainichev; Cristian Vicent; Nina F Zakharchuk; Andrey M Danilenko; Vladimir P Fedin

doi:10.1039/c1cc10912j

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

Chem Commun (Camb). 2011 Jul 21;47(27):7833-5. doi: 10.1039/c1cc10912j. Epub 2011 Jun 7.

Authors

Maxim N Sokolov¹, Sergey A Adonin, Dmitry A Mainichev, Cristian Vicent, Nina F Zakharchuk, Andrey M Danilenko, Vladimir P Fedin

Affiliation

¹ Nikolaev Institute of Inorganic Chemistry SB RAS, 630090, Lavrentieva st. 3, Novosibirsk, Russia. caesar@niic.nsc.ru

PMID: 21647522
DOI: 10.1039/c1cc10912j

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.