The substitution of arene by alkenes in linear trinuclear palladium complex Pd3(NO)2(μ-CF3CO2)4(η2-C6H5CH3)2. X-ray structure of Pd3(NO)2(μ-CF3CO2)4(η2-CH2CHPh)2 and Pd4(μ-NO)2(μ-CF3CO2)4(η2-CH2CHPh)4

Abstract An interaction of Pd 3 (NO) 2 (μ-CF 3 CO 2 ) 4 (η 2 -C 6 H 5 Me) 2 ( I ) with alkenes has been studied. A replacement of η 2 -coordinated arene by various olefins has been found to result in complexes of different nuclearity, Pd 3 (NO) 2 (μ-CF 3 CO 2 ) 4 (η 2 -L) 2 (L = Me 3 CCH CH 2 ( III ), CH 2 CHPh ( IV )), Pd 4 (μ-NO) 2 (μ-CF 3 CO 2 ) 4 (η 2 -CH 2 CHPh) 4 ( V ). Complexes IV and V have been characterized by an X-ray diffraction analysis. Molecule IV is constituted of a linear trinuclear metal core bearing η 2 -coordinated molecules of styrene, terminal nitrosyl and bridging carboxylate groups, whereas, complex V has a tetrahedral core, with η 2 -coordinated styrene molecules and half-bridging nitrosyl and carboxylate groups. Complex V represents a new type of nitrosyl carboxylate tetrahedral palladium cluster.