Metal ions Directed Self-assembly based on Mixed Ligands: From 2D hcb Net to 3D cds Framework |
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| Authors: | Zhen Zhang Han-Xu Sun Lin Du Ming-Jin Xie Jie Zhou Qi-Hua Zhao |
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| Institution: | Key Laboratory of Medicinal Chemistry for Natural Resource Education Ministry, School of Chemical Science and Technology, Yunnan University, Kunming |
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| Abstract: | Two coordination polymers (CPs), namely, Zn(BPDC)(3-bpdb)0.5(H2O)2]n ( 1 ), and Ni(BPDC)(3-bpdb)(H2O)2]n ( 2 ) (where H2BPDC = 4,4'-biphenyldicarboxylic acid, 3-bpdb = 1,4-bis(3-pyridyl)-2,3-diaza-1,3-butadiene) have been solvothermally synthesized and characterized by single-crystal X-ray diffraction, IR, elemental analyses, PXRD, and SEM. CP 1 possesses a 2D 3-connected hcb net, and weak hydrogen bonding and π ··· π stacking contacts further link the 2D networks to form 3D supramolecular structure. The structure of 2 presents a 4-connected threefold interpenetrated cds framework. Through structural analysis, it is found that the coordination geometry of metal ions significantly affects the binding behaviors of the ligands and the resultant extended networks of the CPs. Besides, the Hirshfeld surface analyses detailed the surface characteristics of the two CPs. In addition, the thermal stabilities and photoluminescent properties were also investigated. |
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| Keywords: | cds framework hcb net Hirshfeld surface Metal ion Luminescence |
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