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1.
双安息香缩三乙四胺双核过渡金属配合物的合成,表征与载… 总被引:2,自引:0,他引:2
合成了双安息香缩三乙四胺及其与草酸共同配位的Co(Ⅱ),Ni(Ⅱ)、Cu(Ⅱ)、Zn(Ⅱ)、Cd(Ⅱ)的三元双核金属配合物。经经质谱、红外光谱等方法表征。用气体吸收装置探讨了配合物在DMF溶剂中的载氧性质和载氧动力学。 相似文献
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双安息香缩三乙四胺双核钴硫氰酸根的离子电极研究 总被引:16,自引:0,他引:16
季铵盐型阴离子选择性电极由于其电位选择性往往表现出Hofmeister顺序,故使其应用受到限制,因此,研究呈现反Hofmeister行为的阴离子选择性电极已成为离子电极研究领域中重要的研究方向之一。近年来,人们研制出了以金属配合物为中性载体且呈现反Hofmeister行为的阴离子选择电极,本实验室也分别研究了以Schiff碱金属配合物及二氮杂四烯基金属配合物为载体的碘离子和水杨酸根离子电极,但上述电极多数是以单核金属配合物为载体,以双核金属配合物作为载体的电极则很少。 相似文献
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二乙三胺、三乙四胺钴配合物氧合作用的研究 总被引:1,自引:0,他引:1
The equilibrium constants and oxygenation constants of diethylenetriamine,trieth ylenettramine-Co(Ⅱ) complex were determined by pH potentionmetric method.Some new oxygenated species and their oxygenation constants were found.The oxygenated species and their formation conditions investigated by potentiometry were verif ied by spectrophotometry.Results of the two methods were consistant with one ano ther very well showing the correctness of the results of potentiometry. 相似文献
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以固相法合成的三乙四胺钴配合物为研究体系,采用正离子电喷雾串联质谱、紫外-可见吸收光谱、拉曼共振光谱和红外光谱等表征手段,研究了配合物与氧分子的相互作用过程及配合物在吸氧过程中的结构变化.结果表明,三乙四胺钴配合物的吸氧过程是一个动态的变化过程,氧合产物由双氧双桥联的氧合配合物CoⅢL-(O2)2-CoⅢL形式向双羟基桥联的老化配合物CoⅢ-L-(OH)2-CoⅢL形式转变;18O2同位素标记实验验证了Co-O-O-Co的存在.酸解实验说明OH桥联配合物的形成是造成可逆性差的根本原因.这些结果为探知多胺钴配合物的氧合结构和老化机理提供了新的研究方法和实验依据. 相似文献
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以固相法合成的三乙四胺钴配合物为研究体系,采用正离子电喷雾串联质谱、紫外-可见吸收光谱、拉曼共振光谱和红外光谱等表征手段,研究了配合物与氧分子的相互作用过程及配合物在吸氧过程中的结构变化。结果表明,三乙四胺钴配合物的吸氧过程是一个动态的变化过程,氧合产物由双氧双桥联的氧合配合物CoⅢL-(O2)2-CoⅢL形式向双羟基桥联的老化配合物CoⅢL-(OH)2-CoⅢL形式转变;18O2同位素标记实验验证了Co-O-O-Co的存在。酸解实验说明OH桥联配合物的形成是造成可逆性差的根本原因。这些结果为探知多胺钴配合物的氧合结构和老化机理提供了新的研究方法和实验依据。 相似文献
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含硫席夫碱安息香缩肼基二硫代甲酸甲酯过渡金属配合物的合成与表征 总被引:1,自引:0,他引:1
合成和表征了新的含硫席夫碱—安息香缩肼基二硫代甲酸甲酯 (H2 L)及与Mn(Ⅱ ) ,Co(Ⅱ ) ,Ni(Ⅱ )Zn(Ⅱ )和Cd(Ⅱ )生成的配合物 [M(HL) 2 ]。结果表明这些配合物中安息香缩肼基二硫代甲酸甲酯存在为去质子化的烯硫醇式三齿配体 ,通过甲亚胺基氮原子、醇羟基氧原子和烯硫醇硫原子配位 ,金属离子处于六配位的八面体环境。 相似文献
7.
在水溶液中合成了{[Lu2(ttha)(H2O)6Lu2(ttha)(H2O)4]·21H2O}n , 通过X 射线衍射确定其晶体结构。该配合物为一无限链状结构, 三斜晶系, 空间群P1 , 单胞参数a = 1-09787(7) nm , b=1-27603(10) nm , c = 1-45903(10) nm , α3 = 75-769(6)°, β= 85-288(5) , γ=71-577(6)°, V= 1-8797(2) nm3 . Z= 1 , Dc = 1-975 g/cm3 . F(000) = 1106 , μ= 5-312 nm - 1 ,R1 = 0-0239 ,w R2 = 0-0527 。 相似文献
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LIU Wei SHI Tong-shun LIU Guo-fa 《高等学校化学研究》2006,22(4):419-422
The properties of porphyrins can be changed through the choice of peripheral substituents and inserted metal ions. To obtain porphyrin complexes with novel structures, 5,10,15,20-tetrakis(p-4-fluorobenzoyloxy) phenyl porphyrin(TFBOPPH2) and its transition metal complexes {TFBOPPM [M=Mn(Ⅲ), Fe(Ⅲ), Co(Ⅱ), Ni(Ⅱ), Cu(Ⅱ) and Zn(Ⅱ)]} were synthesized and characterized by means of UV-Vis, IR photoacoustic spectrometry, 1H NMR, elemental analyses, molar conductance, and XPS methods. A structure is proposed, in which one porphyrin molecule is coordinated with a transition metal ion in a tetradentate fashion, while the chlorine ion is the balanceable anion in Fe(Ⅲ) and Mn(Ⅲ) complexes. 相似文献
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Synthesis,Structural Characterization and Preliminary Biological Studies of Several Heterocyclic Transition Metal Carbonyl Complexes 下载免费PDF全文
Shanfang Hu Xianwei Cui Weimin He Xiangyi Chen Zikuan Gu Jingzhe Zhao Guang Zeng Zhan Shi Lei Zhu Hemin Nie 《无机化学与普通化学杂志》2015,641(14):2452-2459
The reaction of molybdenum, tungsten and manganese carbonyls with several thiazole heterocycle ligands yielded a number of coordinated transition metal complexes 1 – 10 . Of these complexes 1 – 6 are new compounds which have not been reported to date. The structures of new compounds were characterized by FT‐IR and 1H‐NMR spectroscopy as well as single‐crystal X‐ray diffraction analysis. Complexes 1 – 10 are carbon monoxide releasing molecules that show structure‐related anti‐cancer activity. The cytotoxicity of all compounds on Hela cells was evaluated by MTT assay, and the results show that carbon monoxide releasing molecules containing such Schiff base ligands may have biomedical applications for their anti‐tumor effect. 相似文献
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首次合成了喹喔啉-2,3-二甲酰胺(Qxda)与3d过渡金属的三种固体配合物:M(Qxda)2cl2(M=Co(I),Ni(I),Cu(Ⅱ)。通过元素分析,摩尔电导,红外光谱,电子光谱,磁化率,热分析等手段对配合物的组成和性质进行了研究。 相似文献
14.
Xiang He Can‐Zhong Lu Ya‐Qin Yu Shu‐Mei Chen Xiao‐Yuan Wu Ying Yan 《无机化学与普通化学杂志》2004,630(7):1131-1135
Hydrothermal reactions of NaN3, 1, 10‐phenanthroline or 2, 2′‐bipyridine and transition metal cations including ZnII or CoII in basified aqueous solutions yielded the three complexes, [Zn2(bipy)2(N3)4]n ( 1 ), [Zn(phen)(N3)2]n ( 2 ), and [Co(phen)2(N3)2] ( 3 ), which were characterized by X‐ray crystallography. All three complexes crystallize in the triclinic system, space group P1¯, with a = 6.5506(2), b = 10.8441(6), c = 16.893(2)Å, α = 96.333(5), β = 95.361(7), γ = 90.548(6)° for 1 ; a = 7.0302(10), b = 10.0590(14), c = 10.4550(15)Å, α = 109.372(2), β = 103.980(2), γ = 106.137(2)° for 2 ; and a = 8.1722(2), b = 11.0332(3), c = 12.5066(2)Å, α = 82.681(8), β = 82.457(9), γ = 72.991(7)° for 3 , respectively. The photoluminescence spectra for compounds 1 and 2 have also been studied. 相似文献
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《无机化学与普通化学杂志》2018,644(7):377-380
By reaction of pentafluorophenylhydrazine with metal chlorides the complexes M(NH2NHC6F5)4Cl2 (M = Co, Ni), M(NH2NHC6F5)2Cl2 (M = Mn, Fe, Pd, Zn, Cd), Cu(NH2NHC6F5)Cl, and Hg(NH2NHC6F5)2Cl were obtained. From Cr(CO)6 and pentafluorophenylhydrazine the complex Cr(CO)5(NH2NHC6F5) was synthesized. 相似文献
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采用密度泛函理论(DFT) B3LYP方法,对8个吡啶二亚胺配合物的几何结构、电子光谱和二阶非线性光学(NLO)性质进行了计算和分析.结果表明,配合物的极化率受副配体和中心金属离子的影响不大,副配体对配合物二阶NLO系数的影响也不明显.随金属离子d电子数的增加,配合物二阶NLO系数(β)有所减小,同一族金属离子随半径增大,其配合物相应的βtot值增加.配合物中的金属离子起到供电子作用时,配合物最大振子强度下的跃迁能较小,其相应的βtot值较大. 相似文献
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过渡金属杂原子Y型分子筛的合成及表征 总被引:1,自引:0,他引:1
采用水热法合成了含过渡金属(Ti,Fe)的Y型分子筛,通过XRD、FT-IR、UV-vis-DRS和TG等对其进行了表征.结果表明:少量杂原子Ti、Fe进入骨架后,不影响Y分子筛的晶型及结晶度,但晶胞常数变大,骨架振动IR吸收峰向低频移动;杂原子Y分子筛的UV-vis-DRS谱图上不存在非骨架Ti、Fe的特征峰;TPR曲线表明,在600℃下通氢处理1h后,FeY分子筛仍无还原峰出现,这些均表明杂原子Ti、Fe已进入Y分子筛骨架. 相似文献
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Dr. Sida Wang Dr. Phil Liebing Dr. Martin Feneberg Prof. Farid M. Sroor Dr. Felix Engelhardt Dr. Liane Hilfert Dr. Sabine Busse Elias Kluth Prof. Dr. Rüdiger Goldhahn Prof. Dr. Frank T. Edelmann 《欧洲无机化学杂志》2023,26(14):e202300027
A series of new alkynylamidinate complexes of selected first and second row transition metals has been synthesized and fully characterized. Treatment of MCl2 precursors (M=Mn, Fe, Co) with 2 equiv. of the lithium alkynylamidinates Li[c-C3H5−C≡C−C(NR′)2] ⋅ THF (R′=iPr (2), Cy (cyclohexyl) ( 2 )) afforded a series of binuclear complexes of the type M2[c-C3H5−C≡C−C(NR)2-κN:κN′]2[c-C3H5−C≡C−C(NR)2-κ2N,N′]2 ( 3 : M=Mn, R=Cy; 4 a : M=Fe, R=iPr; 4 b : M=Fe, R=Cy; 5 : M=Co, R=iPr) with no significant metal-metal bonding. In marked contrast, a similar reaction of CrCl2 with 2 equiv. of 1 afforded the homoleptic dinuclear chromium(II) complex Cr2[c-C3H5−C≡C−C(NiPr)2-κN:κN′]4 ( 6 ) which supposedly comprises a Cr−Cr quadruple bond. Complex 6 could also be prepared in a more rational way and in better yield (61 %) by using dichromium(II) tetraacetate, Cr2(OAc)4, as starting material. Related reactions employing dimolybdenum(II) tetraacetate, Mo2(OAc)4, and 2 or 3 equiv. of 1 afforded the mixed-ligand paddle wheel-type complexes trans-Mo2(OAc-κO:κO′)2([c-C3H5−C≡C−C(NiPr)2-κN:κN′]2 ( 7 ) and Mo2(OAc-κO:κO′)([c-C3H5−C≡C−C(NiPr)2-κN:κN′]3 ( 8 ). All title compounds were structurally characterized through single-crystal X-ray diffraction and spectroscopic techniques (NMR, IR, Raman). 相似文献
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过渡金属十一钨锆酸钾的合成及鉴定 总被引:2,自引:0,他引:2
缺位杂多阴离子XW11O39(X=Si,P,As,Ge)能与过渡金属阳离子M生成MXW11O39,在该混配杂多阴离子中,过渡金属原子占据缺位的八面体位置[1].为深入了解其配位方式,我们合成并鉴定了未见报道的Kn[MZrW11O39(H2O)]·xH2O(M为第一过渡系金属). 相似文献