An unprecedented 3D coordination network composed of two intersecting helices

Abstract
A hydro(solvo)thermal reaction between Zn(ClO4)2·6H2O and Z-3-(4-cyanostyryl)pyridine affords an unprecedented chiral 3D coordination polymer Zn{Z-[4-2-(3-pyridyl)ethenyl]benzoate}2·0.5H2O with two intersecting six-fold helices, which shows a modest SHG activity owing to the essentially non-conjugate nature of the bridging ligand.

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