Abstract
A new three-dimensional (3D) zincophosphite |Co(en) 3| [Zn 4(HPO 3) 5(H 2PO 3)] ( 1) has been solvothermally synthesized by using a racemic mixture of a chiral cobaltammine complex Co(en) 3Cl 3 as the structure-directing agent. Single-crystal X-ray diffraction analysis reveals that compound 1 crystallizes in the monoclinic space group P2 1/ c (no. 14) with a=18.6180 (4) Å, b=8.7601(18) Å, c=17.4840(4) Å, β=93.42(3)°, V=2846.4(10) Å 3, Z=4 with R 1=0.0530. Its structure is built up from strict alternation of ZnO 4 tetrahedra and HPO 3 pseudo-tetrahedra, giving rise to a 3D inorganic framework with 4-, 6-, 8-, 10- and 12 MRs, and the metal complex molecules, both the Δ and Λ enantiomers, sit in 10-MRs channels. In addition, it is worth noting that left- and right-handed helical chains exist in the framework, which is induced by chiral metal complex Co(en) 3Cl 3 template molecules. Further characterization of compound 1 has been performed, including X-ray powder diffraction, ICP, CHN, IR and TG analyses.
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