A Unique Solvent-Induced Structural Transformation of Two Acentric [Zn2(H2O)(Hdtim)2] Isomers



Solvent-induced structural transformation was observed in two layered supramolecular isomers of [Zn2(H2O)(Hdtim)2] (H3dtim=4,5-ditetrazoyl-imidazole). Structural analyses revealed that the two isomers have the similar geometry of Zn, coordination mode of Hdtim2−, and topology. Their structural differences only arise from different arrangement of the layers which seemingly corresponds to cooperative clockwise and counter-clockwise 90° rotation of the adjacent layers. This is a quite unique solvent-dependent supramolecular isomerism in coordination polymers.