Butane-1,4-diamine zinc(II) hydrogen phosphite

The title compound, poly[zinc(II)-mu-butane-1,4-diamine-mu-( hydrogen phosphito)] (C4H12N2)(0.5)[ZnHPO3], is a hybrid organic - inorganic solid built up from 1,4-diaminobutane molecules, Zn2+ cations (coordinated by three O atoms and one N atom) and HPO32- hydrogen phosphite groups. The organic species bonds to the Zn atom as an unprotonated ligand, resulting in it acting as a bridge between infinite ZnHPO3 layers, which propagate in ( 100). The complete butane-1,4-diamine species is generated from a H2N(CH2)(2) - half molecule by inversion symmetry. The zincophosphite sheets contain polyhedral four- and eight-membered rings in a 4.8(2) topology.