Synthesis and crystal structure of bis(2-methylbenzimidazolium) tetrahalocuprate(II) |
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| Authors: | Rahul Bhattacharya Sumana Chanda Gabriele Bocelli Andrea Cantoni Ashutosh Ghosh |
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| Affiliation: | (1) Department of Chemistry, University College of Science and Technology, University of Calcutta, 92 A. P. C. Road, Kolkata –, 700 009, India;(2) Department of Physics, University College of Science and Technology, University of Calcutta, Kolkata, India;(3) IMEM-CNR, Parco Area delle Scienze 37a, 43100 Parma, Italy |
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| Abstract: | The crystal structures of 2-methylbenzimidazolium tetrahalocuprates (H2-mebz)2[CuX4] (X = Cl and Br) have been detemined. The chloride salt is monoclinic, P21/c, with a = 8.540(2) Å, b = 16.591(2) Å, c = 14.303(3) Å, and  = 98.69(2)°. The bromide salt is also monoclinic, P21/c, with a = 8.316(3) Å, b = 17.436(3) Å, c = 14.747(3) Å, and = 98.82(3)°. Both the compounds contain discrete distorted tetrahedral CuX42– anions and almost planar 2-methylbenzimidazolium cations. In the chloride salt, three chloride ions are involved in hydrogen bonding instead of two bromide ions in the bromide salt. |
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| Keywords: | Tetrahalocuprates 2-methylbenzimidazolium cation hydrogen bonding crystal structures |
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