title: A novel three-dimensional CdII metal-organic framework based on [Cd6(malonate)6] metallomacrocycles with zeolite SOD (sodalite) topology: poly[ammine-μ3-malonato-cadmium(II)].
abstract: A novel Cd(II) metal-organic framework, [Cd(C(3)H(2)O(4))(NH(3))](n), was synthesized by liquid diffusion conducted in the presence of ammonia. The Cd(II) atom has seven-coordinate O(6)N pentagonal-bipyramidal geometry. Six Cd(II) centers are joined by six malonate ligands to form an S(6)-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 Cd(II) center is connected to four others to yield an infinite three-periodic four-coordinated SOD (sodalite) network with point symbol {4(2)·6(4)}. The overall network structure in the crystal is maintained and stabilized by the presence of N-H...O hydrogen bonds.
authors.affiliation: Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, People's Republic of China.
authors.forename: Shuai
authors.initials: S
authors.lastname: Yuan
authors.forename: Mei-Jiao
authors.initials: MJ
authors.lastname: Liu
authors.forename: Han-Yi
authors.initials: HY
authors.lastname: Xie
authors.forename: Meng-Zhen
authors.initials: MZ
authors.lastname: Xu
authors.forename: Di
authors.initials: D
authors.lastname: Sun