摘要:
1:1 and 2:1 adducts of diphosphine ligands R2P(R')(n)PR2 (dppm: R = Ph, R' = CH2, n = 1; dppe: R = Ph, R' = CH2, n = 2; dppp: R = Ph, R' = CH2, n = 3; dppb: R = Ph, R' = CH2, n = 4; dppf: R = Ph, R' = ferrocenyl, n = 1) with silver( I) methanesulfonate have been synthesized and characterized both in solution (H-1, P-31 NMR) and in the solid state (IR, single crystal X-ray structure analysis). The two different stoichiometries have been found to depend on the molar ratio of ligand to metal employed and the nature of the diphosphine ligand. In AgO3SMe: dppp, dppb (1:1)(2), in the [Ag(P boolean AND P)(2)Ag] arrays, the silver atoms are also bridged by anion oxygen atoms, in disparate fashion commensurate with the different Ag center dot center dot center dot Ag distances. (C) 2009 Elsevier B. V. All rights reserved.