`0'- and `8'-shaped complexes generated from a nano-sized oxa­diazole-containing organic ligand with CdI₂ and CuI

The new nano-sized rigid double-armed oxa­diazole-bridged ligand 2,5-bis­{2-methyl-5-[2-(pyridin-3-yl)ethen­yl]phen­yl}-1,3,4-oxa­diazole has been used to create two novel metallocyclic complexes with one adopting a 20-membered `0'-shaped metallocyclic structure and the second adopting a discrete `8'-shaped metallocyclic structure.

Three one-dimensional coordination polymers based on 1,1′-bis­(pyridin-4-ylmeth­yl)-2,2′-bi-1H-benzimidazole and HgX₂ (X = Cl, Br and I)

The new ligand 1,1′-bis­(pyridin-4-ylmeth­yl)-2,2′-bi-1H-benzimidazole has been combined with HgX₂ (X = Cl, Br and I) to create three one-dimensional coordination polymers. The three complexes have one-dimensional zigzag chains and the Hg^II centres are in a distorted tetra­hedral [HgX₂N₂] geometry in each case.

The coordination chemistry of two symmetric fluorene-based organic ligands with cuprous chloride. Corrigendum

Corrigendum to Acta Cryst. (2013), C69, 1488-1493 .