The new supermolecular structure of chain organic–inorganic hybrid compound {[Cu(phen)]2(VO2)(H2O)2(H2PO4)2 (PO4)} (phen=1,10-phenanthroline)

A new organic–inorganic hybrid compound {[Cu(phen)]2(VO2)(H2O)2(H2PO4)2(PO4)} 1 has been synthesized hydrothermally. Single crystal X-ray diffraction revealed that the chain compound 1 consists of two vanadium-corner-shared [Cu–O–P–O–V–O] 6-membered rings {Cu2VP2O6}, which is further connected by {PO4} tetrahedra. This connected manner is rarely reported before. With significant π–π stacking between phen rings and hydrogen bonding contributing to inter-chain interactions, the 1D chains extend into a 3D supermolecular structure.