Solvent Control Over Structural Diversity of Two Copper (II) Complexes Based on Polyaromatic Acid Ligand |
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| Authors: | Bingjun Zhang Cuijuan Wang Zhenghong Cai Shuai Huang Xianli Zhou Yaoyu Wang |
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| Affiliation: | (1) Department of Chemistry and Chemical Engineering, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan, People’s Republic of China;(2) Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi′an, 710069, Shaanxi, People’s Republic of China; |
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| Abstract: | Abstract A new bipod polyaromatic acid ligand H2bcm (H2bcm = {2, 4-bis (2′-carboxyphenoxy) methyl]-1,3,5-trimethylbenzene}) is prepared and its two novel binuclear coordination
compounds, Cu2(bcm)2(CH3OH)2]·2CH3OH (1) and Cu2(bcm)2(CH3CH2OH)2]·2CH3CH2OH (2), have been synthesized with copper acetate and H2bcm ligand in methanol solvent and ethanol solvent respectively, and characterized by the element analysis, IR, TGA and single
crystal X-ray diffraction. The results of structural analysis indicate that 1 crystallizes in the triclinic system with space group P1, while 2 crystallizes in the monoclinic system with space group P21
/c. Furthermore, 1 adopts μ
2
-COO− and syn–syn coordination mode with Cu (II)···Cu (II) separation of 2.5868(11) ? and forms 1D zigzag chain structure by O···O interactions.
The coordination of 2 is similar to that of 1 except that ethanol molecules are coordinated instead of methanol molecules with Cu (II)···Cu (II) separation of 2.5973(13)
?. Two-dimensional network structures of 1 and 2 are formed through π–π interactions. |
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