Palladium(II) Schiff Base Complexes Derived from Allylamine and Vinylaniline

Abstract

Condensation of salicylaldehyde (2-HOC 6 H 4 C(O)H) with allylamine afforded the unsaturated salicylaldimine, 2-HOC 6 H 4 C(H)=NCH 2 CH=CH 2 . Similar reactivity was observed with substituted salicylaldehydes. Further reaction of these Schiff bases with palladium acetate or Na 2 PdCl 4 afforded complexes of the type PdL 2 , where L = deprotonated Schiff base. The molecular structure of the parent salicylaldimine palladium complex [trans-(2-OC 6 H 4 C(H)=NCH 2 CH=CH 2 ) 2 Pd] (1) was characterized by an X-ray diffraction study. Crystals of 1 were monoclinic, space group P21/n, a = 14.0005 (9)