Syntheses and characterization of two new zinc phosphites with 1D chains decorated by Zn-centered complexes

Two inorganic organic hybrid solids, Zn-2(phen)(HPO3)(2) (t) and Zn(phen)(HPO3) (2), have been synthesized under solvothermal conditions in the presence of 1,10-phenanthroline (phen) ligands. Their structures were determined by single-crystal X-ray diffraction and further characterized by FTIR, elemental analysis, powder X-ray diffraction, thermogravimetric analysis and fluorescent spectra. Compound 1 crystallizes in the triclnic system, space group P-1, a = 8.1813(3) angstrom, b = 8.5535(3) angstrom, c = 12.3031(5) angstrom, alpha = 75.609(1)degrees, beta = 79.145(2)degrees, gamma = 67.157(2)degrees, V = 764.46(5) angstrom(3), Z = 2. Compound 2 is monoclinic, C2/c, a = 16.1044(7) angstrom, b = 18.9447(6) angstrom, c = 8.1713(6) angstrom, beta = 94.175(4)degrees, V = 2486.4(2) angstrom(3), Z = 8. Both structures consist of I D chains constructed from strictly alternating ZnO4 and HPO3 polyhedra through sharing vertices. The chains are further decorated by Zn-centered complex architectures, [Zn(phen)](2+) for 1 and [Zn(phen)(2)](2+) for 2. The 2D and 3D supramolecular arrays for I and 2 are stably stacked via strong pi-pi interactions of the phen groups, respectively. (c) 2005 Elsevier Inc. All rights reserved.