111188-08-0Relevant academic research and scientific papers
Synthesis of Chelate Stabilised Alcohol- and Alkoxo-Platinum(II) Complexes. X-Ray Crystal Structure of
Alcock, Nathaniel W.,Platt, Andrew W.G.,Pringle, Paul
, p. 2273 - 2280 (1987)
Reaction of the new phophine PPh2CH2CMe2OH with platinum(II) chloro complexes gives complexes of formula .The cis isomer in CDCl3 or CD3OD solution is in the ionic, chelate form cis-.At +25 deg C, rapid intramolecular -OH exchange takes place.Addition of AgClO4 gives the bis-chelate cis-2.Both of these cis species can be readily deprotonated to give the very stable bis(alkoxo) complex .The X-ray structure of this bis(alkoxo) complex as its 3.5 H2O solvate has been determinated 3.0> diffractometer-collected reflections>.The Pt atom has square- planar co-ordination, with Pt-O bonds of normal length .Thus the general instability of alkoxoplatinum complexes is attributed to facile β-hydride elimination and not to abnormally long and weak Pt-O bonds.The trans isomer forms the fluxional chelate complex trans-in CD3OD, but in CDCl3 it gives a neutral non-chelated species.It is also deprotonated by NEt3 but only to the non-fluxional mono-alkoxo complex .The (31)P- and (1)H n.m.r. data for the complexes are discussed.
