Resumo

VALDERRAMA, MAURICIO; CONTRERAS, RAUL; ARANCIBIA, VERONICA  e  MUNOZ, PATRICIO. HEXAMETHYLBENZENERUTHENIUM(II) COMPLEXES CONTAINING BIS(DIPHENYLPHOSPHINE)AMINE AND THEIR SULPHUR OR SELENIUM DERIVATIVES AS LIGANDS. Bol. Soc. Chil. Quím. [online]. 2000, vol.45, n.2, pp.227-235. ISSN 0366-1644.  http://dx.doi.org/10.4067/S0366-16442000000200009.

Reaction of dinuclear complex [{(h⁶-C₆Me₆)Ru(µ-Cl)Cl} ₂] with the ligand NH(PPh₂)₂ in 1:2 molar ratio affords the mononuclear complex [(h⁶-C₆Me₆)RuCl ₂{h1-(PPh₂)₂NH}](1) which in turn reacts with AgPF₆ to yield the cationic compound [(h⁶-C₆Me₆)RuCl{h ²-(PPh₂)₂NH}]PF₆ (2). Complex 3 reacts with KOBu^t to give the neutral complex [(h⁶-C₆Me₆)RuCl{h ²-(PPh₂)₂N}](3). The anionic ligand of complex 3 reacts easily with HBF₄ regenerating the starting complex and with MeI by N-methylation of the chelate ligand. The non coordinating P atom of complex 1 reacts with sulfur or selenium to form the P-coordinate monosulphide or selenide ligands, [{(h⁶-C₆Me₆)RuCl ₂{h¹PPh₂NHP(E)Ph₂ }] (5,6). The treatment of complexes 5 and 6 with AgPF6 affords cationic (7,8) or neutral (9,10) complexes depending of the solvent used. The neutral complex 9 can be N-derivatized by reaction with MeI

Palavras-chave : Ruthenium; bis(diphenylphosphine)anime complexes; bis(diphenylphosphine) methylamine complexes; hexamethylbenzene complexes; synthesis.