A novel three-dimensional CdII metal-organic framework based on [Cd6(malonate)6] metallomacrocycles with zeolite SOD (sodalite) topology: poly[ammine-mu 3-malonato-cadmium(II)]

作者:Yuan Shuai; Liu Mei Jiao; Xie Han Yi; Xu Meng Zhen; Sun Di*
来源:Acta Crystallographica Section C-Crystal Structure Communications, 2012, 68: M57-M60.
DOI:10.1107/S0108270112003277

摘要

A novel CdII metalorganic framework, [Cd(C3H2O4)(NH3)](n), was synthesized by liquid diffusion conducted in the presence of ammonia. The CdII atom has seven-coordinate O6N pentagonalbipyramidal geometry. Six CdII centers are joined by six malonate ligands to form an S6-symmetric [Cd-6(malonate)(6)] metallomacrocycle, which is further extended through a side-on chelating malonate ligand to form a three-dimensional network. Topologically, each CdII center is connected to four others to yield an infinite three-periodic four-coordinated SOD (sodalite) network with point symbol {42 center dot 64}. The overall network structure in the crystal is maintained and stabilized by the presence of N-H...O hydrogen bonds.

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