Synthesis, characterizations and spectral properties of a new one-dimensional organically templated zincophosphite

A new one-dimensional zincophosphite, (C2H10N2)[Zn(HPO3)2], has been synthesized under mild hydrothermal conditions in the presence of structure-directing agent, ethylenediamine, and its crystal structure was determined by single-crystal X-ray diffraction method (monoclinic, C2/c, a = 13.921(4) Å, b = 7.7301(19) Å, c = 8.858(2) Å, β = 91.224(3)°, V = 953.0(4) Å3, Z = 4). The crystal structure of the title compound is characterized by corner-sharing ZnO4 and HPO3 tetrahedra, leading to infinite corner-shared four-membered ring chains. Diprotonated ethylenediamine ions occupying the interspaces interconnect the chains via hydrogen bonds to form a novel organic-inorganic layered-like stack. Luminescent measurement of the title compound shows a broad emission band between 350 and 500 nm when excited with 340 nm UV light.