Molecular Structure of an Unexpected Binuclear Salicylaldimine Semicarbazone Palladium(II) Complex |
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| Authors: | Prinessa Chellan Kelly Chibale and Gregory S Smith |
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| Institution: | (1) Department of Chemistry, University of Cape Town, Private Bag, Rondebosch, 7701, South Africa;(2) Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch, 7701, South Africa; |
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| Abstract: | Abstract Reaction of a salicylaldehyde semicarbazone ligand with PdCl2(PPh3)2 yields an unexpected binuclear Pd(II) complex, 2. The complex crystallizes in a triclinic system with a P-1 space group, with unit cell parameters a = 14.0283(3) ?, b = 15.2603(3) ?, c = 18.7142(3) ?, α = 66.662(10)°, β = 86.162(10)°,
γ = 76.265(10)°, Z = 2. The semicarbazone ligand acts as a tridentate chelating donor to one palladium metal centre, forming
a five- and six- membered ring, and a monodentate donor to the second palladium centre. There are four molecules of solvent
per complex molecule in the asymmetric unit. Each metal centre is contained within a slightly distorted square-planar environment. |
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