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Title: Synthesis, crystal structure, properties and thermoanalysis of complexes of Cu(II) and Ni(II) with taurine-5-chlorosalicylaldelyde Schiff base
Authors: Zhang, SH
Jiang, YM
Zhou, ZY
Keywords: Copper(II)
Molecular structure
Taurine-5-chlorosalicylaldelyde Schiff base
Issue Date: 2004
Source: Chinese journal of chemistry, 2004, v. 22, no. 11, p. 1303-1307 How to cite?
Journal: Chinese Journal of Chemistry 
Abstract: The reactions of transition metal salts with taurine 5- chlorosalicylaldelyde Schiff base gave two complexes [Ni(TCSSB)(H 2O)3]·H2O (1) and [Cu(TCSSB)(H 2O)2]2·[Cu(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 PI, 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)(H 2O)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: [Ni(TCSSB)(H2O) 3]·H2O 60-104 °C/-H2O → Ni(TCSSB)(H2O)3 110-155 °C/-3H2O → Ni(TCSSB) 425-610 °C/-TCSSB → NiO.
ISSN: 1001-604X
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