A novel chiral 3D architecture containing left-handed helical chains constructed from vanadate clusters: [Zn(bpp)V2O6] (bpp = 1,3-di-4-pyridylpropane)

The hydrothermal reaction of Zn(NO3)2 · 6H2O, bpp and NH4VO3 in water at 140 °C for 80 h yields an unprecedented chiral three-dimensional vanadium oxide complex, [Zn(bpp)V2O6] (1). The structure of 1 consists of wave-like two-dimensional networks, linked through {ZnO2N2} building blocks and bpp ligands into a three-dimensional covalently linked assembly. Furthermore, the title compound consists of infinite helical chains and all helical chains are left-handed.