Uncoordinated inorganic salt in 1D chain structure:: formation of a novel supermolecule [HgBr2(ptz)]2 • HgBr2 (ptz = phenothiazine)

A novel supermolecule [HgBr2(ptz)](2) (.) HgBr2 (ptz = phenothiazine) with uncoordinated inorganic salt HgBr2 presented in a 1D chain was prepared. The bulky ligand phenothiazine has unusual coordination mode with large steric inhibition perpendicular to the chain direction. The uncoordinated HgBr2 molecule was stabilized by multiple weak HgBr2 interactions and the whole structure was also stabilized by strong pi-pi interactions and N-(HBr)-Br-... hydrogen bonds to form 2D network. (C) 2003 Elsevier B.V. All rights reserved.