Synthesis,crystal structure and thermal analysis of supramolecular architectures of copper(II)(2,2′-biimidazole) complexes using dicarboxylate as a coligand |
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| Authors: | Ananta Kumar Ghosh Debajyoti Ghoshal Ennio Zangrando Nirmalendu Ray Chaudhuri |
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| Affiliation: | 1. Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India;2. Department of Chemistry, Jadavpur University, Kolkata 700 032, India;3. Dipartimento di Scienze Chimiche, University of Trieste, 34127 Trieste, Italy |
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| Abstract: | Two new copper(II) complexes {[Cu(H2biim)(H2O)(suc)](H2O)}n (1) and {[Cu(H2biim)2(H2O)][Cu(H2biim)2(glut)](glutH)(NO3) · 2.5H2O}n (2) (H2biim, 2,2′-biimidazole; suc, succinate dianion; glut, glutarate dianion) have been synthesized and characterized by single crystal X-ray diffraction study and thermal analysis. Complex 1 comprises of 1D zigzag coordination polymers, elongated along the crystallographic b-axis, connected through H-bonding and face-to-face π–π interactions to form a robust 3D network. Whereas complex 2 is built up of bischelated [Cu(II)(H2biim)2]2+ units, glutarate and nitrate anions and water molecules, held together through an extensive H-bonded system. The resulting 3D supramolecular architecture defines channels which are filled by lattice water molecules and disordered nitrate anions. |
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| Keywords: | Copper(II) Supramolecular architecture Crystal structure π&ndash π interaction |
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