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Syntheses, Crystal Structures and Properties of Zinc(II), Cadmium(II) and Cobalt(II) Coordination Complexes Based on 2,4-Dichlorophenoxyacetic Acid and Different Imidazole-Containing Ligands
Journal of Inorganic and Organometallic Polymers and Materials ( IF 4 ) Pub Date : 2020-01-01 , DOI: 10.1007/s10904-019-01426-3 Yong-Hong Zhou , Yun Xu , Qian-Lan Tao , Tian Tian , Xian-Hui Wei , Qiao Chu , Biao Shi
Journal of Inorganic and Organometallic Polymers and Materials ( IF 4 ) Pub Date : 2020-01-01 , DOI: 10.1007/s10904-019-01426-3 Yong-Hong Zhou , Yun Xu , Qian-Lan Tao , Tian Tian , Xian-Hui Wei , Qiao Chu , Biao Shi
A series of Zn(II), Cd(II), and Co(II) mixed-ligand coordination complexes, namely, [Cd2(2,4-D)4(PBIX)2] (1), [Cd(2,4-D)2(OBIX)]n (2), [Zn(2,4-D)2(OBIX)]n (3), [Co(2,4-D)2(BIM)(H2O)2]n (4), and [Cd(2,4-D)(NBI)]n (5) (2,4-DH = 2,4-dichlorophenoxyacetic acid, PBIX = 1,4-bis(imidazole-1-ylmethyl)benzene, OBIX = 1,2-bis(imidazole-1-ylmethyl)benzene, BIM = 1,1′-(1,4-butanediyl)bis(benzimidazole), and NBIH = 6-nitrobenzimidazole) have been prepared and fully characterized by elemental analysis, IR spectra, and single crystal X-ray diffraction. X-ray analysis reveals that the bimetallic Cd(II) subunits in complex 1 are bridged by PBIX to form a 0D structure with 26-membered metallomacrocycle. In complexes 2, 3 and 4, the metal centers are linked by OBIX or BIM molecules to generate 1D chains. In complex 5, the Cd(II) ions are bridged by NBI ligands to form a 2D network, which is further extended to a 3D framework through π–π stacking interaction. The structural diversification of complexes 1–5 illustrates the great influence of the metal centers and imidazole-containing ligands on the self-assembly of coordination architectures. In addition, solid fluorescence properties and thermal stability for these crystalline materials are also studied.
中文翻译:
2,4-二氯苯氧基乙酸和不同咪唑配体的锌(II),镉(II)和钴(II)配位化合物的合成,晶体结构和性质
一系列的Zn(II),Cd(II)和Co(II)混合配体配位络合物,即[Cd 2(2,4-D)4(PBIX)2 ](1),[Cd(2 ,4-D)2(OBIX)] n(2),[Zn(2,4-D)2(OBIX)] n(3),[Co(2,4-D)2(BIM)(H 2 O)2 ] n(4)和[Cd(2,4-D)(NBI)] n(5)(2,4-DH = 2,4-二氯苯氧基乙酸,PBIX = 1,4-双(咪唑-1-基甲基)苯,OBIX = 1,2-双(咪唑-1-基甲基)苯,BIM = 1已经制备了1,-(1,4-丁二基)双(苯并咪唑)和NBIH = 6-硝基苯并咪唑),并通过元素分析,IR光谱和单晶X射线衍射对其进行了充分表征。X射线分析表明,配合物1中的双金属Cd(II)亚基被PBIX桥接,形成一个具有26元金属大环的0D结构。在配合物2,3和4中,金属中心由OBIX或BIM分子连接以产生一支维链。在复杂5,Cd(II)离子被NBI配体桥接形成2D网络,该网络通过π-π堆叠相互作用进一步扩展到3D框架。复合物的结构多样化1 - 5示出了金属中心和含咪唑配位体上的自组装协调架构的影响很大。另外,还研究了这些晶体材料的固体荧光性质和热稳定性。
更新日期:2020-01-01
Graphic Abstract
A series of Cd(II)/Zn(II)/Co(II) coordination compounds based on 2,4-dichlorophenoxyacetic acid and different imidazole-containing ligands have been synthesized under hydrothermal conditions and structurally characterized. Photoluminescent properties have been discussed.中文翻译:
2,4-二氯苯氧基乙酸和不同咪唑配体的锌(II),镉(II)和钴(II)配位化合物的合成,晶体结构和性质
一系列的Zn(II),Cd(II)和Co(II)混合配体配位络合物,即[Cd 2(2,4-D)4(PBIX)2 ](1),[Cd(2 ,4-D)2(OBIX)] n(2),[Zn(2,4-D)2(OBIX)] n(3),[Co(2,4-D)2(BIM)(H 2 O)2 ] n(4)和[Cd(2,4-D)(NBI)] n(5)(2,4-DH = 2,4-二氯苯氧基乙酸,PBIX = 1,4-双(咪唑-1-基甲基)苯,OBIX = 1,2-双(咪唑-1-基甲基)苯,BIM = 1已经制备了1,-(1,4-丁二基)双(苯并咪唑)和NBIH = 6-硝基苯并咪唑),并通过元素分析,IR光谱和单晶X射线衍射对其进行了充分表征。X射线分析表明,配合物1中的双金属Cd(II)亚基被PBIX桥接,形成一个具有26元金属大环的0D结构。在配合物2,3和4中,金属中心由OBIX或BIM分子连接以产生一支维链。在复杂5,Cd(II)离子被NBI配体桥接形成2D网络,该网络通过π-π堆叠相互作用进一步扩展到3D框架。复合物的结构多样化1 - 5示出了金属中心和含咪唑配位体上的自组装协调架构的影响很大。另外,还研究了这些晶体材料的固体荧光性质和热稳定性。