
%0 Journal Article
%A Black, DS 
%A Deacon, GB 
%A Edwards, GL 
%T Observations on the Mechanism of Halogen-Bridge Cleavage by Unidentate Ligands in Square Planar Palladium and Platinum Complexes
%J Australian Journal of Chemistry
%D 1994/02/01
%V 47
%N 2
%P 217-227
%K 
%R https://doi.org/10.1071/CH9940217
%U https://www.publish.csiro.au/paper/CH9940217 
%X Cyclo-palladation and - platination of nitrogen donor ligands lead to insoluble &#956;- chloro  dimers which give &#956;- bromo and &#956;- iodo dimers on metathesis with the appropriate lithium halide. Addition of pyridine or 2,6-dimethylpyridine to the cyclopalladated dimers gives monomeric complexes with the halogen trans to the metal-carbon bond, whereas addition of 2,6-dimethylpyridine to the cycloplatinated complexes gives the isomer with the halogen cis to the metal-carbon bond. The results are discussed in terms of the mechanism of the bridge cleavage reaction. 
