糠醛缩对苯二胺与Ln(Ⅲ)配合物的合成、表征及热分解动力学

合成了三种新的希夫碱配合物[LnL2(NO3)2(H2O)2](H2O)(C2H5OH), [Ln(Ⅲ) = Nd, Gd, Dy; L=糠醛缩对苯二胺].通过元素分析、IR、 UV和摩尔电导分析等手段, 对合成的配合物进行了表征, 并用非等温热重法研究了钆配合物的热分解反应动力学. 推断出第三步热分解动力学方程为 dα/dt = A*e-E/RT*3 / 2 (1-α)4/3 [1 / (1-α)1/3-1]-1.     

铀(Ⅵ)的二溴水杨醛缩二胺类双希夫碱及溶剂三元配合物的合成和表征

Nine new complexes [UO₂(Dbsal-o-Phdn)L][UO₂(Dbsalen)L] and [UO₂(Dbsalpn)L] [Dbsal-o-PhdnH 2=N,N′-o-phenylenebis-(3,5-dibromosalicylideneimine), DbsalenH₂=N,N′-ethylenebis (3,5-dibromosalicylideneimine), DbsalpnH₂=N,N′-1,2-propanylenebis (3,5-dibromosalicylideneimine), L=MeOH, EtOH, py] have been synthesized and characterized by elemental analysis, IR, UV, TG-DTA and molar conductance analysis. These complexes are proposed to have seven coordinate environment.     

钐(Ⅲ)与不对称希夫碱配合物的合成、表征和热分解反应动力学

A new unsymmetrical Schiff base zwitterion （Ⅲ） was synthesized using L-lysine, salicylaldehyde and 2-hydroxy-l-naphthaldehyde. Samarium（Ⅲ） complex of this ligand [SmL（NO3）]NO3·2H2O has been prepared and characterized by elemental analyses, IR, UV and molar conductance. The thermal decomposition kinetics of the complex for the second stage was studied under non-isothermal condition by TG and DTG methods. The kinetic equation may be expressed as dα/dt=3/2Ae^E/RT（1-α）^2/3[1-（1 -α）^1/3）]^-1. The kinetic parameters （E, A）, activation entropy △S^x and activation free-energy △G^x were also gained.     

铀(Ⅵ)的二溴水杨醛缩二胺类双希夫碱及溶剂三元配合物的合成和表征

铀（Ⅵ）的二溴水杨醛缩二胺类双希夫碱及溶剂三元配合物的合成和表征郑庚修＊毕彩丰张家祥王秋芬张广友（山东建材学院应用化学系，济南２５００２２）关键词：硝酸铀双希夫碱三元配合物关于铀与希夫碱的配合物的结构、萃取等研究已有报道。结构研究发现：铀（Ⅵ）盐可以...     

水杨醛-L-甲硫氨酸希夫碱钴(Ⅱ)配合物的热分解动力学

本文合成了一种新的希夫碱配合物，水杨醛－Ｌ－甲硫氨酸－水合钴（Ⅱ），Ｃｏ（ｓａｌｍｅｔ）．Ｈ２Ｏ并用非等温热重法研究了它的热分解反应动力学。     

不对称希夫碱卟啉及其稀土配合物的合成与表征

以二甲基甲酰胺为溶剂,5-对氨基苯基-10,15,20-三苯基卟啉与苯甲醛直接反应得到一种不对称希夫碱卟啉化合物,并合成了它的稀土配合物.用元素分析、紫外-可见光谱、红外光谱1、H核磁共振以及X射线光电子能谱对这些化合物进行了表征,推测了稀土乙酰丙酮卟啉配合物的结构,稀土离子与乙酰丙酮的两个O原子和卟啉的4个吡咯N原子配位,配位数为6,稀土离子位于卟啉平面的上方.     

若干锰(Ⅲ)希夫碱配合物的合成和表征

合成了六种锰(Ⅲ)希夫碱配合物:Mn(bzacem)X(X~-=Cl~-,Br~-,I~-,NCS~-,NO_2~-)和Mn(bzacen)ClO_4·2H_2O,其中bzacen~(2-)为N,N′-二(苯甲酰丙酮缩)-乙二胺阴离子.用NMR法测定配合物在DMSO溶液中的有效磁矩值为4.46—4.63,表明为高自旋配合物,将电子光谱中的吸收带分别按配位场带、荷移带和配体带进行了归属,在配合物的红外光谱中,原配体H_2bzacen中的ν_(N-H)带消失,ν_(C-O)带移向低频,并对Mn-O、Mn-N和Mn-X的伸缩带进行了归属。     

用非等温TG、DTG曲线研究由邻香兰素衍生的Cu（Ⅱ）希夫碱配合物的热分解反应动力学

用非等温ＴＧ、ＤＴＧ曲线研究由邻香兰素衍生的Ｃｕ（Ⅱ）希夫碱配合物的热分解反应动力学李淑兰，王红，刘德信，康永军（山东大学化学系，济南２５０１００）杨兆荷（山东大学晶体材料研究所，济南２５０１００）关键词希夫碱，Ｃｕ（Ⅱ）配和物，热分解反应动力学研究...     

异双希夫碱配合物的合成与表征

邻苯二胺与5-氯-2-羟基二苯酮、2-羟基-1-萘醛作用合成了一种异双四齿希夫碱配体C30H21N2O2Cl(H2L)。在无水体系中该配体与金属醋酸盐作用合成了5种固体配合物[ML]·nH2O(M=Cu(Ⅱ),Zn(Ⅱ),Mn(Ⅱ),Co(Ⅱ),Ni(Ⅱ);n=0-1)。通过元素分析、IR、UV、TG-DTG及摩尔电导分析等手段对合成的配合物进行了表征。     

水杨醛－L－甲硫氨酸希夫碱钴（Ⅱ）配合物的热分解动力学

本文合成了一种新的希夫碱配合物，水杨醛－Ｌ－甲硫氨酸—水合钴（Ⅱ），Ｃｏ（ｓａｌｍｅｔ）·Ｈ２Ｏ，并用非等温热重法研究了它的热分解反应动力学。ＴＧ及ＤＴＧ曲线表明配合物按两步分解：Ｃｏ（ｓａｌｍｅｔ）·Ｈ２Ｏ１４２－１７５℃（１）→Ｃｏ（ｓａｌｍｅｔ）１７５－８２０℃（２）→ＣｏＯ用Ａｒｃｈａｒ微分法和Ｃｏａｔｓ－Ｒｅｄｆｅｒｎ积分法联合求出两步骤的动力学。步骤（１）、（２）的动力学方程分别表示如下：ｄα／ｄｔ＝Ａ·ｅ－Ｅ／ＲＴ（１－α）［－ｌｎ（１－α）］ｄα／ｄｔ＝Ａ·ｅ－Ｅ／ＲＴ（１－α）２［（１－α）－１－１］     

Synthesis and Crystal Structure of a Co(II) Complex with Schiff Base and Imidazole Ligand

1 INTRODUCTION The chemical behavior of metal complexes with Schiff base ligand has attracted much attention be- cause of their catalytic activity in some industrial[1, 2] and biochemical processes[3~5]. As some metal com- plexes have shown the catalytic activity in some polymerization reactions[2, 6], we are recently inte- rested in polymerizartion of organo-silicon com- pounds catalyzed by Schiff base complexes of tran- sition metals. A series of Schiff base complexes have been prepare…     

金刚乙胺水杨醛Schiff碱锌(Ⅱ)配合物的合成、表征、晶体结构和热分解动力学研究

A Zinc(Ⅱ) complex [ZnCl₂(HL)₂] with Schiff base HL derived from rimantadine and salicylaldehyde was synthesized and characterized by elemental analysis, infrared spectra, ¹H NMR spectra,molar conductance, ultraviolet and visible spectra, thermal analysis. Its structure was determined by single crystal X-ray diffraction method. The complex, C₃₈H₅₀Cl₂N₂O₂Zn, crystallizes in the orthorhombic system, space group Aba2 with a=1.381 7(3), b=2.275 0(5), c=1.145 0(2) nm, V=3.599(1) nm³, Z=4, M_r=653.79, F(000)=1 496, D_c=1.301 kg·m^-3, μ(Mo Kα)=0.866 mm^-1. The kinetic parameters were obtained from the analysis of TG curve by integral methods. The functions of thermal decomposition reaction mechanism are: F(α)=[1-(1-α)^1/3]², and kinetic compensation effect equation lnA=0.019 1E-0.142 7. CCDC: 253297.     

水杨醛牛磺酸Schiff碱镝(Ⅲ)配合物的合成表征及热分解动力学研究(英文)

合成了水杨醛牛磺酸Schiff碱与镝(Ⅲ)的配合物,并通过元素分析、红外光谱、X射线粉末衍射及摩尔电导等对其结构进行了表征.在非等温条件下,采用Achar微分法和Coats-Redfern积分法拟合出配合物的热分解动力学方程.     

二正丁基锡水杨醛缩对氨基苯甲酸酯配合物的合成、表征及结构研究

The title complex {[ⁿBu₂Sn(2-OHC₆H₄CH=NC₆H₄COO)]₂O}₂·2H₂O was synthesized by the reaction of N-(4-carboxyphenyl)-salicylideneimine with dibutyltin(IV) oxide in 1∶1 molar ratio. The compound has been characterized by elemental analysis, IR, ¹H NMR spectra and X-ray single crystal diffraction. It crystallizes in triclinic system with space group P1. The crystal data are: a=1.242 9(2) nm, b=1.261 3(2) nm, c=1.594 9(3) nm, α=102.06(2)°, β=92.884(3)°, γ=95.939(3)°, Z=2, D_c=1.342 g·cm^-3, F(000)=1 000, V=2.425 2(7) nm³, R₁=0.041 5, wR₂=0.104 4. The compound is in centro-symmetric dimer structure mode with a four-member central endo-cyclic Sn₂O₂ unit in which the bridging oxygen atoms are tri-coordinated. All the tin atoms are five-coordinated with geometry of distorted trigonal bipyramid. CCDC:286105.     

Thermal Decomposition Kinetics of the Zn(II) Complex with Norfloxacin in Static Air Atmosphere

The thermal decomposition of Zn[NFA]₂5H₂O (NFA=C₁₆H₁₈FN₃O₃, norfloxacin) and its kinetics were studied under non-isothermal conditions in air by TG-DTG and DTA methods. The intermediate and residue for each decomposition were identified from the TG curve. The non-isothermal kinetic data were analyzed by means of the Achar method and the Madhusudanan-Krishnan-Ninan (MKN) method. The possible reaction mechanisms were investigated by comparing the kinetic parameters. The kinetic equation for the second stage can be expressed as d/dt=Aexp(–E/RT)(1–).This revised version was published online in November 2005 with corrections to the Cover Date.     

N-邻羟苄亚基苯胺Schiff碱铜配合物的合成、结构和性能表征(英)

The structure of the title compound has been determined by X-ray crystallography. Each copper atom is chelated by two N-salicylidene-aniline anion ligands with Cu-O and Cu-N distances of 0.187 6(3) and 0.200 1(4) nm, respectively. The central copper(Ⅱ) is four-coordinated and in distorted square-planar environment. The phenyl rings with salicylidene moieties form a dihedral angle of 65.40°. There are C-H…π supramolecular interactions in the crystal structure. The title compound is also examined by elemental analysis, FT-IR, UV spectra and TG-DSC analysis. CCDC: 222315.     

以Schiff碱N-丁酰基水杨酰肼为配体的三核镍(Ⅱ)配合物的合成与结构

The trinuclear nickel (Ⅱ) complex Ni3(C11H11N2O3)2(C5H5N)4 was prepared by the reaction of Ni(OAc)2 @ 4H2Owith N-butylsalicylhydrazide Schiff base ligand and characterized by X-ray crystallography. The crystal belongs totriclinic, Mr=930.91, space group P1 with cell parameters a =9. 8489(2)A, b = 12. 3110(2) A, c = 18. 4035(3) A, α=71.353(2)°, β=76.638(2)°, γ=84.815(2)°, V=2056.72(6)A3, Z=2, Dc=1.503g@cm-3,μ(MoKα) = 1. 417mm-1, F(000) = 964, R = 0. 0317, wR = 0. 0868. A total of 5393 independent reflectionswere collected, of which 4448 reflections with I ≥ 2 σ(I) were observed. There are two centrosymmetrical trin-angle of 180°. The interatomic distances between the nickel atoms on the two sides are 9. 2030(8) A and 9. 1876(9) A for the two molecules, respectively. The central nickel atom adopts an axially elongated octahedral geometrywhereas the nickel atoms on the two sides have square-planar coordination environment. CCDC: 194083.     

水杨醛-L-缬氨酸合铜(Ⅱ)配合物的合成、晶体结构及热分析研究

X射线单晶结构分析结果表明，深蓝色的水杨醛-L-缬氨酸二吡啶合铜（Ⅱ）配合物晶体-C22H23CuN3O3属单斜晶系，空间群对1114可观测衍射最终一致性因子为R＝0．066，该配合物中心离子是5配位的，其中希夫碱配体提供3个配位原子：N（1）、O（1）、0（2）；另外2个配位原子为2个吹吹分子提供的N（2），N（3）。N（1），N（2），N（3）组成三角形平面与O（1），O（2）构成三角双锥，Cu的配住为畸变三角双锥构型。其中，N（1），N（2），N（3）为赤道配位原子，而O（1）－Cu－O（2）为配合物的轴。     

Synthesis,X-ray studies,and catalytic activity of tridentate Schiff base dioxo-molybdenum(VI)

The reaction of a solution of MoO₂(acac)₂ in CH₃OH and salicylidene 2-picoloyl hydrazone as a tridentate ONO donor Schiff base (ONO) afford a six-coordinated Mo(VI) complex [MoO₂(ONO)(CH₃OH)], with a distorted octahedral configuration. [MoO₂(ONO)(CH₃OH)] was isolated as an air-stable crystalline solid and fully characterized by single-crystal X-ray structure analysis. [MoO₂(ONO)(CH₃OH)] shows reactivity in the oxidation of sulfides to their corresponding sulfoxides using urea hydrogen peroxide as the oxidant at room temperature under air.