Synthesis, Crystal Structure, Properties and Thermoanalysis of Complexes of Cu(Ⅱ) and Ni(Ⅱ) with Taurine-5-chlorosalicylaldelyde Schiff Base |
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摘 要: |
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关 键 词: | 合成 晶体结构 热分析 铜配合物 镍配合物 牛磺酸-5-氯水杨醛 西氟碱 |
Synthesis,crystal structure,properties and thermoanalysis of complexes of Cu(ll) and Ni(ll) with taurine‐5‐chlorosalicylaldelyde schiff base |
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Authors: | Shu‐Hua Zhang Yi‐Min Jiang Zhong‐Yuan Zhou |
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Abstract: | The reactions of transition metal salts with taurine 5‐chlorosalicylaldelyde Schiff base gave two complexes Ni(TCSSB)(H2O)3].H2O (1) and Cu(TCSSB)(H2O)2]2Cu(TCSSB)2].6H2O (2) (TCSSB=taurine‐5‐chlorosalicylaldelyde Schiff base), which were characterized by elemental analysis and X‐ray diffraction analysis. The complex 1 crystallized in monoclinic system with space group P2 1/c, and a=1.4816(2) nm, b=1.3953(2) nm, c= 0.7466(1) nm, β= 100.499(3)°, V=1.5176(4) nm3, Z=4, and an infinite 3‐D network structure was formed by hydrogen bonds among sulfo group, crystal water and coordinated water. Complex 2 crystallized in triclinic system with space group P1 , with the cell parameters: a = 0.6413(2) nm, b= 1.4596(3) nm, c= 1.6188(4) nm, a= 102.473(5)°, β= 98.979(4)°, γ=101.739°, V=1.4165(6) nm3, Z=1. The coordination environment between Cu(1) and Cu(2) is different. Cu(1) is slightly distorted square pyramidal while Cu(2) is distorted square‐plane. The complex 1 is mononuclear while the complex 2 is made up of two coordinated subunits, namely Cu(TCSSB)2] and CU(TCSSB)(H2O)2]2. Besides that the TG‐DTG of the complex 1 was analyzed, the thermal decomposition reaction of the complex was studied under a non‐isothermal condition by TG‐DTG. The TG and DTG curves indicate that the complex was decomposed in three stages: . |
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Keywords: | molecular structure taurine‐5‐chlorosalicylaldelyde Schiff base copper(II) nickel(II) TG‐DTG |
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