PALLADIUM(II) AND PLATINUM(II)-C<sub>(3)</sub>-SUBSTITUTED 2,2'-BIPYRIDINES
DOI:
https://doi.org/10.1007/740Abstract
Reaction of Pd(OAc)2 with HL1 and HL2 (НL1 = 6-iso-propyl-2,2'-bipyridine; HL2 = 6-nеo-pеntyl-2,2'-bipyridine), followed by treatment with LiCl or KI gives [PdCl(L1)]2, (1), [PdCl(L2)]2, (2), [РdI(L2)]2, (3), respectively. The chloride bridge in complexes 1 and 2 is split by PРh3 to give the mononuclear species PdСl(L1)(РРh3), (4), and РdСl(L2)(РРh3), (5). Spectroscopic data provide evidence for coordination of the deprotonated ligands through a nitrogen and the C(3) atom of the 6-substituted pyridine. An analogous platinum complex РtСl(L3)(SМе2), (6), (HL3-6-tert-butyl-2,2'-bipyridine) was obtained from trans-РtСLМe(SМе2)2 and HL3). The crystal structures of compounds 1 and 6 have been solved by X-ray diffraction analysis.
Also published in Chemistry of Heterocyclic Compounds, 1999, 35 (8), pp 992-1000