Synthesis, crystal structure and Hirshfeld surface analysis of a polymeric bis-muthate(III) halide complex, (CHN)[BiCl]·2HO.

The synthesis and the crystal structure of a new halide-bridged polymer, namely -poly[bis-(1,2,3-benzotriazolium) [[tetra-chlorido-bis-muth(III)]-μ-chlorido] dihydrate], {(CHN)[BiCl]·2HO} are reported. The structure comprises polyanionic zigzag chains of formula [(BiCl)] running along the axis direction. The 1,2,3-benzotriazolium cations are linked between these polymer chains, the water mol-ecules, giving rise to left- and right-handed helical chains.