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Silver(i) complexes of N-thiophosphorylated bis(iminophosphorane) ligands: From monomers to polymers
Cadierno, Victorio,Diez, Josefina,Garcia-Alvarez, Joaquin,Gimeno, Jose
, p. 2760 - 2769 (2008/02/10)
Treatment of diphosphines Ph2P(CH2) nPPh2 (n = 1, 2, 4, 6) and [Fe(η5-C 5H4PR′2)2] (R′ = Ph, iPr) 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(η5-C 5H4[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 PS 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. The Royal Society of Chemistry 2007.
