Bis(2,2′-bipyridine-1κ2N,N′)-μ-bromido-1:2κ2Br-tribromido-2κ3Br-copper(II)mercury(II)

Abstract

In the title compound, [CuHgBr4(C10H8N2)2], the CuII atom is coordinated by four N atoms of two bidentate 2,2′-bipyridine ligands and one Br atom of a tetra­bromido­mercurate anion in a distorted trigonal–bipyramidal geometry. The Br atom occupies an equatorial position and bridges the CuII and Hg atoms, with Hg—Br distances of 2.7503 (15) A, longer by more than 0.15 A than the terminal Hg—Br bonds. Weak π–π inter­actions between symmetry-related pyridine rings stabilize the packing; the shortest C—C distance between two parallel aromatic rings of bipy ligands is 3.491 (9) A.