Abstract
A series of new platinum complexes of the type cis-[Pt(PIP) 2X] (where PIP=piperidine and X=dichloro, sulfato, oxalato, malonato, methylmalonato, dimethylmalonato, tartronato, 1,1-cyclopropyldicarboxylato (CPDCA) or 1,1-cyclobutyldicarboxylato (CBDCA) ligand) were synthesized and characterized by elemental analysis, IR, and 195Pt nuclear magnetic resonance spectroscopy. The crystal structure of cis-[Pt(PIP) 2Cl 2]·H 2O was determined by X-ray crystallography. In this complex platinum has slightly distorted square planar geometry with two adjacent corners being occupied by two nitrogen atoms of piperidine, whereas the remaining two adjacent corners are occupied by two chloride atoms. An intricate network of intermolecular hydrogen bonding holds the crystal lattice together. In these complexes, piperidine acts as non-leaving ligand, whereas the dicarboxylic acids act as leaving groups.
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