A novel metal-organic framework, namely [Zn(C20H13O5P)]n(1), has been hydrothermally synthesized through the reaction of 5-(oxidediphenylphosphino)isophthalic acid(H2L) with Zn(Ⅱ) salt. The title compound crystallizes in monoclinic, space group P21/c with a = 11.0966(10), b = 14.5651(14), c = 14.7311(15), β = 130.022(6)o, C20H13O5 PZn, Mr = 429.64, V = 1823.3(3) 3, Dc = 1.565 g/cm3, F(000) = 872, μ = 1.463 mm-1, S = 1.054 and Z = 4. The final R = 0.0270 and wR = 0.0739 for 2769 observed reflections with I > 2σ(I). In the title complex, the Zn2(CO2)2 binuclear clusters are linked by L2- ligands to result in a pillared layer structure in the bc plane, which is a(4,4)-net composed of helical chains with opposite chirality by sharing Zn2(CO2)2 units. Adjacent layers are further associated together through Zn–O bonds involving the metal center and the oxygen atom of P=O group to achieve a 3D architecture, in which one-dimensional quadrangled channel displays the interweaving of two pairs of coaxial double-helical chains with opposite chirality. The luminescence property and thermogravimetric analysis of the title complex were investigated.
