Crystal structure of tris­μ2-bis­(di­phenyl­phosphan­yl)methane-κ2P:P′di-μ3-bromido-tris­ilver(I) bromide–NN′-phenyl­thio­urea (1/1)

摘要

The title complex, [Ag3Br2(C25H22P2)3]Br·C7H8N2S, comprises a trinuclear [Ag3Br2(C25H22P2)3]⁺ unit, a Br⁻ anion and one N,N′-di­methyl­thio­urea mol­ecule (ptu). Three Ag^I ions are linked via two μ3-bridging Br atoms, leading to a distorted triangular bipyramid with an Ag⋯Ag separation range of 3.1046 (6)–3.3556 (6) Å. The triangular Ag₃ arrangement is stabilized by six P atoms from three chelating bis­(di­phenyl­phosphan­yl)methane (dppm) ligands. The Ag^I ion presents a distorted tetra­hedral coordination geometry. In the crystal, the bromide anion is connected to the ptu mol­ecule through N—H⋯Br hydrogen bonds [graph-set motif R ₂ ¹(6)]. Each bromide/ptu aggregate links the complex ion via C—H⋯S and C—H⋯Br hydrogen bonds, leading to the formation of a three-dimensional network. Two phenyl rings from two dppm ligands were modelled as disordered over two sites.