铁系元素冠醚配合物的研究——V.三氯化铁与4′-溴苯并-15-冠-5固态配合物的合成和性质

本文报导了三氯化铁(水合物)与4′-溴苯并-15-冠-5(L)固态配合物的合成,对合成的新配合物,进行了元素定量分析及摩尔电导测定,并作了红外光谱、紫外光谱,热重和差热以及X-射线粉末衍射分析的性质表征。从而证明,该配合物中FeCl_3与配体L比为1:1,是溶化剂,含有结晶水的固态配合物。     

铁系元素冠醚配合物的研究——V.三氯化铁与4′-溴苯并-15-冠-5固态配合物的合成和性质

本文报导了三氯化铁(水合物)与4′-溴苯并-15-冠-5(L)固态配合物的合成,对合成的新配合物,进行了元素定量分析及摩尔电导测定,并作了红外光谱、紫外光谱,热重和差热以及X-射线粉末衍射分析的性质表征。从而证明,该配合物中FeCl₃与配体L比为1:1,是溶化剂,含有结晶水的固态配合物。     

N, N′-二吡啶基-3-亚甲基-1, 2-乙二胺-稀土硝酸盐配合物的合成与表征

在乙腈溶液中合成了N,N′-二吡啶基-3-亚甲基-1,2-乙二胺(L)的稀土硝酸盐系列配合物.利用元素分析、 红外光谱和差热-热重分析等手段对所合成的配合物进行了表征,结果表明合成的配合物都符合稀土金属离子与配体为1∶1的化学计量比,其组成可表示为[RE(NO3)3L]·nH2O [RELa(Ⅲ),Nd(Ⅲ),Eu(Ⅲ),Tb(Ⅲ),Er(Ⅲ),n2.5,1.5,1].另外,初步研究了其中Eu(Ⅲ)和Tb(Ⅲ)配合物在室温固体状态下的荧光性质,结果显示这两个配合物表现出相应的Eu(Ⅲ)和Tb(Ⅲ)离子的特征发射.     

1-氨基-2-萘酚-4-磺酸邻菲啰啉稀土配合物的合成及性质

本文报道了在无水乙醇中合成卜氨基-2-萘酚-4-磺酸、邻菲哕啉与稀土氯化物三元固态配合物的方法。元素分析确定了配合物的化学组成,通过红外光谱、紫外光谱、荧光光谱、~1HNMR谱、热谱、X射线粉末衍射、电学性质、溶解度等手段对配合物进行了表征。     

11-配位的镧系金属硝酸盐与1,8-萘并-16-冠-5配合物的合成和性质

本文合成了镧、铈、镨、钕硝酸盐与1,8-萘并-16-冠-5组成为1:1的固体配合物。对这些化合物进行了元素分析、X-射线物相分析、红外光谱、热重和差热分析。经X-射线结构分析证明,它们是一类新的、11-配位的镧系元素冠醚配合物。     

稀土与3-二茂铁基-5-苯基-吡唑啉-1-二硫代甲酸盐配合物的合成及性质

在无水乙醇中,用3-二茂铁基-5-苯基-吡唑啉-1-二硫代甲酸钠(Na-FPPD)与无水氯化稀土作用,合成了14个未见报道的固体配合物。元素分析结果确定配合物的化学组成为RE(FPPD)_3·3H_2O(RE=La,Pr～Lu和Y),通过红外光谱、电子光谱、~1HNMR谱、热分析和摩尔电导测定等方法对配合物进行了表征。     

稀土硝酸盐与4''''-碘苯并-15-冠-5固态配合物的合成和性质

合成了镧、铈、镨、钕硝酸盐与4′-碘苯并-15-冠-5的固态配合物。化学元素分析、红外光谱、紫外光谱、热重和热差分析、摩尔电导测定以及 X-射线粉末衍射分析表明,配合物皆为1∶1型的溶剂化配合物,除 La(NO_3)_3·L·CH_3CN 外,均含有一分子的结晶水,为非电解质。     

原位水热合成的二(2,4-二(对硝基苯)-1,3,5-环戊二烯铜配合物的实验和理论研究

以4-硝基对苯腈,氨水和铜盐反应于在原位水热条件下合成了二（2,4-二（对硝基苯）-1,3,5-环戊二烯铜配合物,通过单晶X射线衍射,元素分析,红外,核磁光谱和热重分析等手段对其进行了表征。结构分析表明,铜与四个源自原位合成的配体上的氮原子配位形成平面四边形构型。基于密度泛函的理论计算对配合物的热力学稳定性进行了阐释。     

钴-硫氰酸根与钠-苯并15-冠-5配合物的研究

本文用凝胶法合成了ENa(苯并15-冠-5)(H_2O)]_2[Co(NCS)_4]的晶体,并对配合物进行了元素分析、溶解性能、摩尔电导、差热—热重分析和红外光谱等各项物理性质的测试,并经X射线单晶结构分析确定了配合物的结构。     

5-甲基苯并三唑-1-乙酸铕三元配合物的合成及表征

以5-甲基-苯并三唑-1-乙酸和1,10-邻菲啰啉为配体,采用溶液法合成了一种铕配合物。通过元素分析、配位滴定、摩尔电导率、红外光谱和紫外光谱对其进行表征。其组成可能为Eu(L)3phen·3.5H2O(HL=5-甲基-苯并三唑-1-乙酸,5-mbtaa;phen=1,10-邻菲啰啉)。使用热分析和荧光光谱研究了配合物的性质。热分析结果显示:铕配合物具有较好的热稳定性。荧光光谱显示:该配合物发出Eu(Ⅲ)特征荧光,并且5-甲基-苯并三唑-1-乙酸是较好的敏化剂。     

过渡金属与华法灵配合物的合成和抗凝血作用研究

用过渡金属硝酸盐与华法灵钠在不同介质制备了金属配合物, 所试验的各种制备方法均可获得恒定组成的配合物NanML3•2H2O (L＝华法灵离子, n＝0, 1). 通过元素分析、红外光谱、摩尔电导、紫外光谱、热重和溶解性试验对配合物进行了表征. 抗凝血试验表明过渡金属华法灵配合物具有一定的抗凝血性质. 并对过渡金属华法灵、过渡金属水杨酸、稀土金属华法灵、稀土金属华法灵水杨酸配合物的抗凝血性质进行了比较.     

Transformation of 2-alkoxyimidate-1,10-phenanthroline metal (Mn, Co and Ni) chlorides from bis(2-cyano-1,10-phenanthroline) metal chlorides: Syntheses, characterizations and their catalytic behavior toward ethylene oligomerization

The 2-alkoxyimidate-1,10-phenanthroline complexes of manganese, cobalt and nickel have been synthesized by the reaction of 2-cyano-1,10-phenanthroline with metal dichloride in the corresponding alcohol. The metal complexes bearing two 2-cyano-1,10-phenanthrolines were isolated in non-protonic solvent as the coordination around metal core with two ligands and two chlorides. The alkoxyimidation of nitrile linked on ligand was speeded in forming the 2-alkoxyimidate-1,10-phenanthrolinyl metal complexes. All the complexes have been characterized by FT-IR spectra and elemental analysis, and some of their structures have also been confirmed by single-crystal X-ray diffraction analysis. All the metal complexes were evaluated in the catalytic oligomerization of ethylene with some alkylaluminums as co-catalyst; in which manganese complexes were less active, cobalt complexes showed low to moderate activities, and nickel complexes gave moderate to good activities.     

Vanadium(III) Complexes of Oxygen Donor Ligands; Their Synthesis,Spectral Characterization and Antimicrobial Studies

A new series of vanadium(III) complexes with oxygen donor ligands have been synthesized and characterized on the basis of elemental analysis, conductance, infra‐red spectroscopy, electronic spectral data and mass spectrometry. Thermal stabilities of the complexes and their kinetics were studied through thermogravimetric analysis. Estimation of vanadium in the complexes is carried out by ICP‐AES. Biological activities of the complexes 2 – 5 , 7 and 8 have also been tested against various bacteria and fungi.     

Transition metal chelates: Synthesis,physicochemical, thermal,and biological studies

The transition metal complex of Mn(II), Co(II), Ni(II), Cu(II), Ti(III), Cr(III), Fe(III), Zr(IV), and UO₂(VI) ion with a Schiff’s base ligand derived from 2-hydroxy-[2-oxo-1,2-dihydro-3H-indol-3-ylidene]-benzohydrazide have been prepared. The complexes have been characterized by elemental analysis data, IR and electronic absorption spectra, magnetic moments, and thermogravimetric analysis data. The complexes of the 1: 1 metal-to-ligand stoichiometry have been formed. The physico-chemical data have suggested the octahedral geometry for all the complexes except for Cu(II); the Cu(II) complex has been square planar. Thermal analysis data of the ligand and its complexes have been analyzed, and the kinetic parameters have been determined using the Horowitz–Metzger method. According to the solid-state electrical conductivity measurements, the ligand and its complexes are semiconducting in nature. The antimicrobial activity of the ligand and the complexes towards E. coli, S. typhi, P. aeruginosa, and S. aureus has been tested by the disc diffusion method.     

Metal ion-directed synthesis of 16-membered tetraazamacrocyclic complexes and their physico-chemical studies

Complexes of Co(II), Ni(II), Cu(II) and Zn(II) containing macrocyclic tetradentate nitrogen donor (N4) ligand have been synthesized from the template condensation reaction between o-phthalaldehyde and o-phenylenediamine. The newly synthesized ligand and its complexes have been characterized on the basis of results of elemental analysis, molar conductance, magnetic susceptibility measurements, FT-IR, electronic, 1H FT NMR spectral data and Job's method. Their thermal behaviour has been studied by the thermogravimetric analysis. An octahedral geometry has been proposed for all of these complexes except the copper complexes, which show distorted octahedral geometry. The low conductivity data suggest their non-ionic nature. The biological activities of the metal complexes have also been studied against different bacteria.     

Synthesis, structure, and properties of the Cu(II) coordination compounds with the pyruvic acid nicotinoyl and isonicotinoyl hydrazones

New coordination compounds of Cu(II) and hydrazones of nicotinic and isonicotinic acids have been prepared. The complexes isolated have been studied by elemental analysis, thermogravimetric analysis, magnetic susceptibility measurements, IR, diffuse reflectance, and EXAFS spectroscopy. The geometry of the compounds has been determined and the type of the ligands coordination has been revealed. Antibacterial activity of the complexes has been studied.     

[Co(solv)<Subscript>6</Subscript>][B<Subscript>10</Subscript>H<Subscript>10</Subscript>] (solv = DMF and DMSO) for low-temperature synthesis of borides

The synthesis and structure of complexes [Co(solv)₆][B₁₀H₁₀] (solv = DMF and DMSO) have been reported. Both complexes have been prepared in a high yield by the reaction between cobalt(II) salts and closo-decaborates Cat₂[B₁₀H₁₀] in the corresponding solvent. The complexes have been characterized by elemental analysis, IR and UV spectroscopy, X-ray powder diffraction, and X-ray crystallography. The thermal properties of the compounds have been studied in the temperature range 20–600°C under argon. The conditions to form cobalt borides have been determined based on the results of thermal analysis, subsequent annealing of the complexes in various conditions, and analysis of IR spectra of the resulting thermolysis products.     

1,4,7-三氮杂环癸烷过渡金属配合物的合成与结构表征

以十元环大环三胺配体1,4,7-三氮杂环癸烷(tacd)为主配体,分别与钴、镍、铜和锌的顺丁烯二酸盐和己二酸盐进行反应,得到了8种含有双大环的单核配合物,利用元素分析,红外光谱以及热重分析等手段对它们的结构进行了表征.结果表明这八种配合物具有类似的配位结构.     

The spectral and magnetic properties of some chloro and bromo transition metal complexes of picolinic acid and a study of their performance as colouring materials for poly(vinyl chloride)

Complexes of picolinic acid with the chlorides and bromides of manganese(II), iron(II), cobalt(II), nickel(II) and copper(II) have been prepared. Spectral and magnetic studies have shown that the iron complexes have discrete octahedral structures while the other complexes have polymeric octahedral structures. The decomposition of the complexes was studied by thermogravimetry and differential thermal analysis. The performance of the complexes as colouring materials for poly(vinyl chloride) has also been investigated.     

1-苯基-3-甲基-七氟丁酰吡唑酮-5(PMHFP)及邻菲咯啉(phen)希土混配配合物的合成及性质研究

本文在乙醇中合成了PMHFP及phen与希土离子的三元配合物Ln(PMHFP)_3·phen(Ln=La,Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu,Y).通过化学分析,元素分析及电导分析确定了配合物的组成;研究了配合物的紫外、红光光谱;借助于差热-热重分析仪研究了所有配合物的挥发性质,测定了它们各自的起始挥发温度,探讨了用于希土分析的可能性.