Aromatic carboxylate effect on dimensionality of three bis(benzimidazole)-based cobalt(II) coordination polymers: Syntheses, structures and properties

• Published in: Journal of solid state chemistry 2013-09, Vol.205, p.104-109
• Main Authors: Zhang, Ju-Wen, Gong, Chun-Hua, Hou, Li-Li, Tian, Ai-Xiang, Wang, Xiu-Li
• Format: Article
• Language: English
• Subjects: BENZIMIDAZOLES; Bis(benzimidazole); Carboxylate; Carboxylates; Chains (polymeric); COBALT; Condensed matter: structure, mechanical and thermal properties; Coordination polymer; Coordination polymers; Cross-disciplinary physics: materials science; rheology; Dimensionality; Exact sciences and technology; HYDROTHERMAL SYNTHESIS; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; LIGANDS; LUMINESCENCE; Materials science; Networks; ORGANOMETALLIC COMPOUNDS; Other materials; Physics; POLYMERS; Property; Specific materials; STABILITY; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Thermal expansion; thermomechanical effects and density; Thermal properties of condensed matter; Thermal properties of crystalline solids; Three dimensional; Topology; Two dimensional
• ISSN: 0022-4596; 1095-726X
• DOI: 10.1016/j.jssc.2013.07.013

Three new metal-organic coordination polymers [Co(4-bbc)2(bbbm)] (1), [Co(3,5-pdc)(bbbm)]·2H2O (2) and [Co(1,4-ndc)(bbbm)] (3) (4-Hbbc=4-bromobenzoic acid, 3,5-H2pdc=3,5-pyridinedicarboxylic acid, 1,4-H2ndc=1,4-naphthalenedicarboxylic acid and bbbm=1,1-(1,4-butanediyl)bis-1H-benzimidazole) were hydrothermally synthesized and structurally characterized. Polymer 1 is a 1D chain formed by the bbbm ligands and CoII ions. Polymer 2 exhibits a 2D network with a (3·4·5)(32·4·5·62·74) topology. Polymer 3 possesses a 3D three-fold interpenetrating framework. The versatile structures of title polymers indicate that the aromatic carboxylates have an important influence on the dimensionality of 1–3. Moreover, the thermal stability, electrochemical and luminescent properties of 1–3 were investigated. Three bis(benzimidazole)-based cobalt(II) coordination polymers tuned by aromatic carboxylates were hydrothermally synthesized and structurally characterized. The aromatic carboxylates play a key role in the dimensionality of three polymers. The electrochemical and luminescent properties of three polymers were investigated. [Display omitted] •Three bis(benzimidazole)-based cobalt(II) coordination polymers tuned by aromatic carboxylates were obtained.•The aromatic carboxylates have an important influence on the dimensionality of three polymers.•The electrochemical and luminescent properties of three polymers were investigated.