Abstract
Carbonylation of [Pd(8-mq) (OCMe 2) x ]ClO 4 (8-mq = 8-quinolylmethyl-C,N) in CH 2Cl 2/Me 2CO at low temperature gave [Pd (8-mq) (OClO 3) (CO)]. Reactions of [Pd (8-mq) (OClO 3) (CO)] with anionic (Cl −, Br −, I −) or neutral (SPPh 3, SPMe 2Ph) nucleophiles in a 1 : 1 molar ratio resulted in the displacement of the weakly coordinated OClO 3 − group and the formation of the corresponding neutral [Pd (8-mq) (X) (CO)] (X = Cl, Br, I) or cationic [Pd (8-mq) (CO) L] ClO 4 (L = SPPh 3, SPMe 2Ph) carbonyl complexes. The cationic complexes, [Pd (8-mq) (CO) L]ClO 4, were synthesized by the reaction of [Pd (8-mq) (OClO 3) (SPPh 3)] or [Pd (8-mq) (μ-SPMe 2Ph)] 2 (ClO 4) 2 with CO. The X-ray structure of a cationic palladium carbonyl derivative, [Pd (8-mq) (CO) (SPPh 3)]ClO 4, is reported.
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