Silver(I) complexes of N-thiophosphorylated bis(iminophosphorane) ligands: from monomers to polymers.
Treatment of diphosphines Ph(2)P(CH2)nPPh2 (n = 1, 2, 4, 6) and [Fe(eta5-C(5)H(4)PR'2)2] (R' = Ph, (i)Pr) with a two-fold excess of (RO)2P(=S)N3 (R = Et, Ph) results in the high-yield formation of the N-thiophosphorylated bis(iminophosphorane) derivatives (CH2)n[P{=NP(=S)(OR)2}Ph2]2 and Fe(eta5-C(5)H(4)[P{=NP(=S)(OR)2}R'2])2, respectively. The reactions of these ligands with AgSbF(6) in a 1 : 1 molar ratio have been investigated. The resulting silver(I) complexes, derived from the selective coordination of the P=S units, have been characterized by IR, NMR and MS (FAB) spectroscopy and, in selected cases, by X-ray crystallography. Monomeric, dimeric and polymeric solid-state structures, depending on the nature of the ligand backbone, have been found.
Cadierno
Victorio
V
Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica Enrique Moles (Unidad Asociada al CSIC), Facultad de Química, Universidad de Oviedo, E-33071, Oviedo, Spain. vcm@uniovi.es
Díez
Josefina
J
García-Alvarez
Joaquín
J
Gimeno
José
J