Inorganic Chemistry, Vol.47, No.9, 3474-3476, 2008
Three-fold intramolecular ring-closing metatheses involving square-planar platinum complexes with cis-phosphorus donor ligands: Syntheses, structures, and properties of parachute-like complexes
Reactions of the phosphite and phosphine complexes cis-PtCl2((PX(CH2)(m)CH=CH2)(3))(2) (X/m = O/3, O/4, O/5, -/5, -/6) with Grubbs' catalyst, followed by hydrogenations, yield cis-PtCl2(P(X(CH2)(2m+2)X)(3)P) (6-40%). Crystal structures establish parachute-like motifs in which one X(CH2)(2m+2)X bridge lies roughly in the platinum coordination plane, and the others lie above and below.