Syntheses, Crystal Structures, and Photoluminescent Properties of PdII Complexes Containing a Disulfanenitrile Ligand

The bidendate ligand Ph2S(=N-(Ph-2)S equivalent to N)(2) (ndsdsd) was used to prepare new Pd-II complexes. The homoleptic complex, [Pd(ndsdsd)(2)]Cl-2 (1) and the heteroleptic complexes, [Pd(diimine)(ndsdsd)]Cl-2 (diimine: 2,2'-bipyridine (2), 1,10-phenanthroline (3a), and 4,7-diphenyl-1,10-phenanthroline (3b)) were prepared, and the molecular structures of 1-3 were characterized. The complexes 2 and 3 are not emissive at ambient temperature in the solid state, but the homoleptic complex 1 shows an unstructured emission bond (lambda(max) = 690 nm).