Four complexes with a bulky carboxylate ligand: syntheses,crystal structures,and luminescent properties |
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Authors: | Jun-Jie Wang Hui-Min Zhu Shao-Mei Wang |
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Institution: | (1) School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan, 455002, People’s Republic of China |
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Abstract: | Abstract Four complexes of 3,3-diphenylpropanoate (L) and 4,4′-bipyridine as auxiliary bridging ligands were synthesized and characterized, namely Zn(L)2(4bpy)(EtOH)2]∞ (1), Co(L)2(4bpy)(EtOH)2]∞ (2), Ni(L)2(4bpy)(EtOH)2]∞ (3), and Cu(L)2(4bpy)(H2O)]∞ (4) (4bpy = 4,4′-bipyridine). X-ray single-crystal diffraction analyses show that complexes 1–4 all take one-dimensional (1D) fishbone-like structures incorporating bridging 4bpy ligands. The complexes show different
supramolecular frameworks interlinked via intermolecular hydrogen bonds, π···π stacking, and/or C–H···π supramolecular interactions.
Complex 3 only has a simple one-dimensional fishbone-like chain, whereas complexes 1 and 2 show two-dimensional supramolecular structures by interchain C–H···O hydrogen bonds. Complex 4 is assembled into two-dimensional layers and then an overall three-dimensional framework by a combination of interchain O–H···O
hydrogen bonds and C–H···π supramolecular interactions. The luminescent properties of the ligands and their complexes were
investigated. |
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