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呋喃甲醛缩二乙撑三胺希夫碱铜配合物的合成及结构(英) 总被引:1,自引:0,他引:1
A novel copper(Ⅱ) complex CuL(NO3)2(where L=N,N′-bis(furaldehyde)-diethylenetriamine) was synthesized and characterized by X-ray crystallography analysis. The crystal belongs to monoclinic, space group C2/c with cell parameters a=1.924 0(6) nm, b=0.792 8(3) nm, c=2.504 1(8) nm, β=111.163(5)°, and Z=8. The coordination geometry around Cu(Ⅱ) is a distorted trigonal-bipyramid,and one-dimensional chain is formed through intermolecular hydrogen bonds. CCDC: 255629. 相似文献
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The thermal dehydration and decomposition kinetics of CH2(COO)2Cu·2H2O were investigated using the non-isothermal method by thermogravimetry (TG) technique in N2. The iterative iso-conversional methods were applied to calculate the activation energy Ea of dehydration and decomposition, and the most probable mechanism function G(α) was determined by means of the master plots method. The pre-exponential factor A was obtained on the basis of Ea and G(α). Kinetic parameters (Ea and lnA) of dehydration were given as: Ea=139.79 kJ·mol-1, ln(A/s-1)=47.38. The mechanism function of the dehydration was G(α)=[-ln(1-α)]2/3, and the decomposition of CH2(COO)2Cu proceeds to completion by two distinct reactions. These two reactions overlap in the transition process (0.45<α<0.65). Kinetic parameters (Ea and lnA )of the first reaction of decomposition were: Ea=201.15 kJ·mol-1, ln(A/s-1)=52.29, and the mechanism function was G(α)=[1-α]-0.37. And in the second reaction G(α)=α+(1-α)ln(1-α), Ea=156.74 kJ·mol-1, ln(A/s-1)=39.58. 相似文献
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Schiff碱双核Mn配合物的合成、结构和性能研究 总被引:3,自引:0,他引:3
Five manganese complexes of Schiff base were synthesized: [MnⅣ,Ⅳ(μ-O)(Salen)]2·DMF·H2O (1), [MnⅣ,Ⅳ(μ-O)(5-BrSalen)]2·DMF·0.5H2O (2), {MnⅣ,Ⅳ(μ-O)[Sal(1,2-pn)]}2·H2O (3), {MnⅣ,Ⅳ(μ-O)[5-Br-Sal(1,2-pn)]}2·H2O (4), {MnⅣ,Ⅳ(μ-O)[5-CH3-Sal(1,2-pn)]}2·2H2O (5), and were characterized by element analysis, IR and UV-Vis spectra. The results of cyclic voltammogram show that Schiff base ligands can drop the potential of manganese and steady high oxide state of manganese. The magnetic properties of 1 and 3 have also been studied. The results show that there is a weak ferromagnetically coupling of MnⅣ2 pair at room and low temperature, and the interactions of complex 3 are weaker than complex 1. 相似文献
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Schiff碱类锌(Ⅱ)配合物的合成、晶体结构及发光性能 总被引:4,自引:0,他引:4
本文合成了2个新的Schiff碱锌配合物Zn(C13H10NO)2(1)和Zn(C14H12NO)2(2),测定了它们的晶体结构。结果表明,配合物1属三斜晶系,空间群P1,晶胞参数a=0.9495(2)nm,b=1.0758(2)nm,c=1.2343(3)nm,α=68.318(2)°,β=67.882(3)°,γ=78.316(3)°,V=1.0824(4)nm3,Z=2,Dc=1.405Mg·m-3,F(000)=472,μ=1.160mm-1;配合物2属单斜晶系,空间群C2/c,晶胞参数a=2.1845(5)nm,b=0.87905(19)nm,c=1.1988(3)nm,β=96.563(3)°,V=2.2870(9)nm3,Z=4,Dc=1.411Mg·m-3,F(400)=1008,μ=1.102mm-1。研究了它们在甲醇、乙醇溶液中的发光行为,结果表明这两个配合物在溶液中发光为金属离子微扰下配体的n-π*的发光。 相似文献
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