Bis[?(2)-bis-(diphenyl-phosphan-yl)methane-?P:P']bis-(?(4)-diphenyl-phosphinato-?O:O:O':O')bis-[?(2)-trifluoro-methane-sulfonato-(0.546/0.454)]-?O:O';?O:O-tetra-silver(I) acetonitrile disolvate.

ABSTRACT: In the centrosymmetric tetra-nuclear title compound, [Ag(4)(C(12)H(10)O(2)P)(2)(CF(3)O(3)S)(2)(C(25)H(22)P(2))(2)]·2CH(3)CN, the Ag(I) atom is coordinated by one P atom from a bis-(diphenyl-phosphan-yl)methane (dppm) ligand, two O atoms from two diphenyl-phosphinate (dpp) ligands and one O atom from a trifluoro-methane-sulfonate (OTf) anion in a highly distorted tetra-hedral geometry. Four Ag(I) atoms are bridged by two dppm ligands, two dpp ligands and two OTf anions, forming a tetra-nuclear complex. An weak intra-molecular Ag?Ag [3.2692?(14)?Å] inter-action is observed. The OTf anion and one of the phenyl groups in the dppm ligand are disordered over two sets of positions in a 0.546?(4):0.454?(4) ratio. The 0.546-occupied OTf is bonded to two Ag atoms in a ?-(?(2)O:O') mode, while the 0.454-occupied OTf is bonded in a ?-(?(2)O:O) mode. The methyl group of the acetonitrile solvent mol-ecule is also disordered over two positions with equal occupancy factors.

SUBMITTER: Tang LP 

PROVIDER: S-EPMC3212199 | biostudies-other | 2011 Aug

REPOSITORIES: biostudies-other