ChemInform Abstract: A Novel Nonacoordinate Bridging Selenido Ligand in a Tricapped Trigonal‐Prismatic Geometry. X‐Ray Structure of Cu₁₁(μ₉‐Se)(μ₃‐Br)₃ [Se₂P(OiPr)₂]₆.

Abstract

A Novel Nonacoordinate Bridging Selenido Ligand in a Tricapped Trigonal-Prismatic Geometry. X-Ray Structure of Cu 11 (µ 9 -Se)(µ 3 -Br) 3 [Se 2 P(OiPr) 2 ] 6 .-The title compound (III) is characterized by FAB mass spectroscopy, 1 H, and 31 P NMR spectroscopy. As revealed by XRD, the yellow compound (III) crystallizes in the triclinic space group P1 with Z = 2. It contains a nonacoordinate bridging selenido ligand in a tricapped trigonal prismatic copper environment. The Cu 11 Se core is stabilized by three bromide and six dsep ligands. The colorless compound (V) crystallizes in the monoclinic space group C2/c with Z = 4. It consists of a bromide-centered Cu I 8 cube of which each edge is bridged by a Se atom of the dsep ligands. -