Grafting {Cp*Rh}(2+) on the surface of Nb and Ta Lindqvist-type POM

P A Abramov; M N Sokolov; A V Virovets; S Floquet; M Haouas; F Taulelle; E Cadot; C Vicent; V P Fedin

doi:10.1039/c4dt03339f

Grafting {Cp*Rh}(2+) on the surface of Nb and Ta Lindqvist-type POM

Dalton Trans. 2015 Feb 7;44(5):2234-9. doi: 10.1039/c4dt03339f.

Authors

P A Abramov¹, M N Sokolov, A V Virovets, S Floquet, M Haouas, F Taulelle, E Cadot, C Vicent, V P Fedin

Affiliation

¹ Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, Russia630090. abramov@niic.nsc.ru.

PMID: 25519849
DOI: 10.1039/c4dt03339f

Abstract

New hybrid POM based on Lindqvist-type polyoxometalates [M6O19](8-) (M = Nb, Ta) and organometallic fragment {Cp*Rh}(2+) have been isolated and characterized. X-ray quality crystals of K4[(Cp*Rh)2Nb6O19]·20H2O () and Cs4[(Cp*Rh)2Ta6O19]·18H2O () were obtained from solutions with {Cp*Rh} : [M6O19](8-) stoichiometry 2 : 1. The solution behavior of the hybrid polyoxoanions was studied with ESI-MS and (1)H DOSY NMR. Amongst the poorly investigated chemistry of polyoxotantalates, complex is the first complex bearing a grafted organometallic fragment. The formation of 1 : 1 complexes was detected by ESI-MS techniques.