New three-dimensional (3,4)-net zincophosphites templated by linear diammonium cations: H3N(CH2)(5)NH3 center dot Zn-3(HPO3)(4) and beta-H3N(CH2)(6)NH3 center dot Zn-3(HPO3)(4)

Abstract

The mild-condition syntheses, single-crystal structures and properties of H3N(CH2)(5)NH3 center dot Zn-3(HPO3)(4) and beta-H3N(CH2)(6)NH3 center dot Zn-3(HPO3)(4) are reported. Both are constructed from (3,4)-nets of ZnO4 tetrahedra and HPO3 pyramids, sharing vertices to result in three-dimensional anionic open-frameworks. In both materials, the organic species interacts with the framework by way of N-H center dot center dot center dot O bonds. Crystal data: H3N(CH2)(5) NH3 center dot Zn-3(HPO3)(4), M-r = 620.22, orthorhombic, Pccn (No. 56), a = 9.5364 (9) angstrom, b = 21.8015 (19) angstrom, c = 9.1118 (7) angstrom, V = 1894.4 (3) angstrom(3), Z = 4, R(F) = 0.044, wR(F-2) = 0.111. beta-H3N(CH2)(6)NH3 center dot Zn-3(HPO3)(4), M-r = 634.25, monoclinic, P2(1)/n (No. 14), a = 8.7627 (1) angstrom, b = 13.8117 (2) angstrom, c = 16.6187 (3) angstrom, beta = 92.680 (1)degrees, V = 2009.12 (5) angstrom(3), Z = 4, R(F) = 0.072, wR(F-2) = 0.187. (c) 2006 Elsevier Masson SAS. All rights reserved.