3-Dimethylaminopropyl chalcogenolate complexes of palladium(II): Syntheses and characterization, including the crystal structures of Pd(OAc)(ECH2CH2CH2NMe2)2·H2O (E = S, Se) and PdCl(TeCH2CH2CH2NMe2)2
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Inorganica Chimica Acta 359 (5): 1449--1457 (2006)

The reactions of the sodium salts of 3-dimethylaminopropylchalcogenolates, prepd. by sodium borohydride redn. of (Me2NCH2CH2CH2E)2 in methanol, with Na2PdCl4 yielded homoleptic Pd(ECH2CH2CH2NMe2)26 (1, E = S (1a); Se (1b); Te (1c)). When treated with Pd(OAc)23 or Na2PdCl4, compds. 1 readily gave binuclear redistribution products PdX(ECH2CH2CH2NMe2)2 where X = OAc (2, E = S (2a); Se (2b)); or Cl (3, E = S (3a); Se (3b); Te (3c)), resp. The terminal acetate/chloride ligands in 2b/3b can be substituted by other ionic ligands like PhSe-. The complexes were characterized by elemental anal., UV-visible, IR and NMR spectroscopy. The structures of 2a, 2b and 3c were established by x-ray crystallog. Each mol. has a dimeric structure in which there are two chalcogenolate bridges from the chelating 3-dimethylaminopropylchalcogenolate ligands. On pyrolysis, compd. 2b affords Pd17Se15. on SciFinder(R)
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