Functionalization of Polyoxometalates: From Lindqvist to Keggin
Derivatives. 1. Synthesis, Solution Studies, and Spectroscopic and ESI
Mass Spectrometry Characterization of the Rhenium Phenylimido
Tungstophosphate [PW11O39{ReNC6H5}]4-
posted on 2004-05-31, 00:00authored byCéline Dablemont, Anna Proust, René Thouvenot, Carlos Afonso, Françoise Fournier, Jean-Claude Tabet
Reaction of [Bu4N]4[H3PW11O39] with [Re(NPh)Cl3(PPh3)2], in acetonitrile and in the presence of NEt3, provided the
first Keggin-type organoimido derivative [Bu4N]4[PW11O39{ReNPh}] (Ph = C6H5) (1). The functionalization was
clearly demonstrated by various techniques including 1H and 14N NMR, electrochemistry, and ESI mass spectrometry.
Conditions for the formation of 1 are also discussed.