Cadmium Metal-Directed Three-Dimensional Coordination Polymers: In Situ Tetrazole Ligand Synthesis, Structures, and Luminescent Properties

• Published in: Crystal growth & design Vol. 10; no. 3; pp. 1332 - 1340
• Main Authors: Qiu, Yongcai, Li, Yinghua, Peng, Guo, Cai, Jinbiao, Jin, Limin, Ma, Li, Deng, Hong, Zeller, Matthias, Batten, Stuart R
• Format: Journal Article
• Language: English
• Published: WASHINGTON American Chemical Society 03.03.2010; Amer Chemical Soc
• Subjects: Chemistry; Chemistry, Multidisciplinary; Condensed matter: structure, mechanical and thermal properties; Crystallography; Exact sciences and technology; Materials Science; Materials Science, Multidisciplinary; Physical Sciences; Physics; Science & Technology; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Technology; POROUS MATERIALS; CARBOXYLATES; COMPLEXES; CHEMISTRY; CRYSTAL-STRUCTURES; ORGANIC FRAMEWORK; HYDROTHERMAL SYNTHESES; SUPRAMOLECULAR ARCHITECTURES; SECONDARY BUILDING UNITS; RATIONAL DESIGN; Cadmium; Monocrystals; Fourier transform spectroscopy; Molecular structure; Polychelate; Fourier analysis; Ligands; Diamond-like carbon; Tetrazoles; XRD; Interconnections; Crystal structure
• ISSN: 1528-7483; 1528-7505
• DOI: 10.1021/cg9013619

Seven three-dimensional (3D) cadmium coordination frameworks, {[Cd(5MT)2] (1a); [Cd5(N3)(5MT)9·0.12H2O] (1b); [Cd3(OH)Cl1.39(N3)0.61(5MT)3] (1c), 5MT = 5-methyl-tetrazole}; {[Cd3(OH)Cl(N3)(5AT)3 (2a); Cd2(OH)Br(5AT)2 (2b), 5AT = 5-amino-tetrazole]}; {[Cd7Cl2(5BT)12(H2O)2 (3a); and [Cd7Br2(5BT)12(H2O)2 (3b), 5BT = 5-butyl-tetrazole], were obtained through in situ tetrazole synthesis and have been structurally characterized by elemental analyses, Fourier transform infrared spectroscopy, thermal studies, and single crystal and powder X-ray diffraction. Compounds 1a and 1b were constructed by the interconnection of 5MT and cadmium metal ions, and both exhibited distinct topological nets: 1a has a diamond-like framework, while 1b has the acs topological net. Compounds 1c and 2a represented similar structural network motifs; both were intricate coordination polymers constructed from interconnected {ClCd3O} subnets through tetrazole anions. Compound 2b was constructed from two-dimensional (2D) wavelike {BrCd3O} layers bridged by 5AT anions. Compounds 3a and 3b were structural isomorphs, constructed from 2D Cd-5BT wheel layers and halogen linkers. Furthermore, the luminescent properties of these complexes were investigated.