Impact of Reaction Conditions on the Structures of Nickel(II) Complexes Based on 3‐(4‐Carboxyphenyl)propionic Acid |
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Authors: | Chang‐Yan Sun Wen‐Jun Li Ping Che |
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Institution: | Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, P. R. China |
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Abstract: | Two new nickel(II) complexes, Ni(4, 4′‐bpy)(H2O)4]n · n(cpp) · 0.5nH2O ( 1 ) and Ni(cpp)(4, 4′‐bpy)(H2O)2]n ( 2 ) 4, 4′‐bpy = 4, 4′‐bipyridine, H2cpp = 3‐(4‐carboxyphenyl)propionic acid] were synthesized and characterized by single‐crystal X‐ray diffraction, elemental analysis, IR spectroscopy, and thermal analysis. In complex 1 , NiII ions are bridged by 4, 4′‐bpy into 1D chains, and cpp ligands are not involved in the coordination, whereas in complex 2 , cpp ligands adopt a bis(monodentate) mode and link NiII ions into 2D (4, 4) grids with the help of 4, 4′‐bpy ligands. Triple interpenetration occurs, which results in the formation of a complicated 3D network. The difference in the structures of the two complexes can be attributed to the different reaction temperatures and bases. |
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Keywords: | 3‐(4‐Carboxyphenyl)propionic acid Nickel Hydrogen bonds Triple interpenetration |
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