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Synthesis, structure and properties of a new three‐dimensional interpenetrated metal–organic framework with 3,3′‐azodibenzoic acid (H 2 azdc) and 1,4‐bis(1 H ‐imidazol‐1‐yl)butane (bimb): {[Cd(azdc)(bimb) 2 ]·H 2 O} n
Author(s) -
Zhong YaQiang,
Chen SiChun,
Zhang Lei,
Jing ChuYue,
Zhang KouLin
Publication year - 2015
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229615009869
Subject(s) - butane , carboxylate , denticity , octahedron , chemistry , ligand (biochemistry) , metal organic framework , crystallography , metal , dimethylformamide , thermal stability , ion , stereochemistry , crystal structure , organic chemistry , catalysis , solvent , biochemistry , receptor , adsorption
A new three‐dimensional interpenetrated Cd II –organic framework based on 3,3′‐azodibenzoic acid [3,3′‐(diazenediyl)dibenzoic acid, H 2 azdc] and the auxiliary flexible ligand 1,4‐bis(1 H ‐imidazol‐1‐yl)butane (bimb), namely poly[[bis[μ 2 ‐1,4‐bis(1 H ‐imidazol‐1‐yl)butane‐κ 2 N 3 : N 3′ ][μ 2 ‐3,3′‐(diazenediyl)dibenzoato‐κ 2 O : O ′]cadmium(II)] monohydrate], {[Cd(C 14 H 8 N 2 O 4 )(C 10 H 14 N 2 ) 2 ]·H 2 O} n , (1), was obtained by a typical solution reaction in mixed solvents (water and N , N ′‐dimethylformamide). Each Cd II centre is six‐coordinated by two O atoms of bis‐monodentate bridging carboxylate groups from two azdc 2− ligands and by four N atoms from four bimb ligands, forming an octahedral coordination environment. The Cd II ions are connected by the bimb ligands, resulting in two‐dimensional (4,4) layers, which are further pillared by the azdc 2− ligands, affording a threefold interpenetrated three‐dimensional α‐Po topological framework with the Schläfli symbol 4 12 6 3 . The thermal stability and solid‐state fluorescence properties of (1) have been investigated.