Abstract
The coordination chemistry of the new chiral bidentate nitrogen ligand trans-4,5-bis(2-pyridyl)norbornane (Renorpy) towards palladium has been studied. The novel complexes (Renorpy)Pd( η 2-alkene) ( η 2-alkene=maleic anhydride, tetracyanoethylene), (Renorpy)Pd(Me)Cl and (Renorpy)Pd(C(O)Me)Cl have been synthesized. Molecular modeling calculations gave a ‘natural’ bite angle for the Renorpy ligand of 115.5°. Single crystal X-ray analyses of the complex (Renorpy)Pd(Me)Cl showed that the bite angle of the ligand in this complex is significantly smaller (93.7(2)°) than the ‘natural’ one, which is caused by the electronic preference of palladium. To accommodate this smaller bite angle the palladium atom moves out of the pyridyl planes.
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