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Syntheses and Magnetism of μ-1, 3, 5-Benzenetricarboxylato Trinuclear Manganese(Ⅱ) and Nickel(Ⅱ)Complexes
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作者 SHI Jing-min LIAO Dai-zheng +2 位作者 CHENG Peng JIANG Zong-hui MIAO Ming-ming and WANG Geng-lin. (Department of Chemistry, Nankai University, Tianjin, 300071 ) 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1996年第1期1-5,共5页
Two new manganese(Ⅱ ) trinuclear complexes and two new nickel (Ⅱ) trinuclear compIexes, namely, [Mn3 (BZT ) (Phen )6] (ClO4 )3 (complex 1 ), [Mn (BZT)· (Nphen )6] (ClO4 )3 (complex 2), [Ni3 (BZT) (Phen)6] (ClO4... Two new manganese(Ⅱ ) trinuclear complexes and two new nickel (Ⅱ) trinuclear compIexes, namely, [Mn3 (BZT ) (Phen )6] (ClO4 )3 (complex 1 ), [Mn (BZT)· (Nphen )6] (ClO4 )3 (complex 2), [Ni3 (BZT) (Phen)6] (ClO4 )3· 5H2O (complex3) and [Ni3 (BZT ) (Nphen )6] (ClO4 )3 (complex 4 ) (BZT = 1, 3, 5-benzenetricarboxylato, Phen = 1, 10-phenthroline, Nphen = 5-nitro-1, 10-phenanthroline )have been synthesized. The complexes were characterized using elemental analysis,IR and electronic reflection spectra. These complexes are proposed to have extended 1, 3, 5-benzenetricarboxylato-bridged structure and to consist of three manganese (Ⅱ) or three nickel(Ⅱ). The X-band ESR spectra of the complex 1 and complex 2were recorded at room temperature. The variable-temperature magnetic susceptibilities of complex 1 and complex 3 were measured over 4. 2-300 K. According to experimental results of the variable-temperature magnetic susceptibility, the magnetic interaction between the paramagnetic centers is too weak to be detected using the usual magnetic susceptibility technique. 展开更多
关键词 manganese () complex Nickel () complex 1 3 5-benzenetricarboxylic acid MAGNETISM
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Synthesis, Crystal Structure and Theoretical Calculation of a Novel 2D Network of Manganese(Ⅱ) Complex 被引量:3
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作者 LI Xiu-Ying YIN Tian-Qi +7 位作者 WANG Chun-Yue ZHANG Jing WANG Yue GAO Lin HU Bo LIU Bo JIANG Wei CHE Guang-Bo 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2019年第12期2113-2120,共8页
A novel complex, [Mn(2-NCP)(H2BTC)(H2O)]n(1, 1,3,5-H3BTC = 1,3,5-benzenetricarboxylic acid, 2-HNCP = 2-(2-carboxyphenyl)-1 H-imidazo(4,5-f)-(1,10)phenanthroline), was hydrothermally synthesized and struc... A novel complex, [Mn(2-NCP)(H2BTC)(H2O)]n(1, 1,3,5-H3BTC = 1,3,5-benzenetricarboxylic acid, 2-HNCP = 2-(2-carboxyphenyl)-1 H-imidazo(4,5-f)-(1,10)phenanthroline), was hydrothermally synthesized and structurally characterized by elemental analysis, IR, XRD and single-crystal X-ray diffraction. Structural analyses reveal that complex 1 exhibits a(6, 6)-connected topology network with a Schl?fli symbol of(63). The adjacent 2 D layers are further stacked via strong hydrogen-bonding interactions, giving a 3 D supramolecular framework. In addition, the structure of complex 1 was calculated by the B3LYP/LANL2 DZ method by Gaussian program. The results from natural bond orbital(NBO) analysis shows obvious covalent interaction between the coordinated atoms and Mn(Ⅱ) ion. 展开更多
关键词 manganese()complex hydrothermal synthesis crystal structure theoretical calculation
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Synthesis and Characterization of a Homochrial Manganese(Ⅱ)Complex Constructed from (1R,2R)-(-)-Diaminocyclohexane-N,N biscarboxyl-salicylidene) 被引量:1
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作者 魏国扬 朱成峰 +3 位作者 査美琴 宣为民 李星 崔勇 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2011年第2期164-169,共6页
A homochrial manganese(Ⅱ) complex derived from chiral salen ligand (1R,2R)-(-)diaminocyclohexane-N,N-biscarboxyl-salicylidene) (1) has been synthesized through solvothermal procedure and characterized by IR,... A homochrial manganese(Ⅱ) complex derived from chiral salen ligand (1R,2R)-(-)diaminocyclohexane-N,N-biscarboxyl-salicylidene) (1) has been synthesized through solvothermal procedure and characterized by IR,elemental analysis,TGA,circular dichroism (CD),powder and single-crystal X-ray crystallography.It crystallizes in monoclinic,space group C2 with a=32.987(7),b=7.4662(15),c=17.931(4),β=97.82(3)°,V=4375.0(15) 3,Z=8,D c=1.544 g/cm 3,F(000)=2096,M r=508.36,μ=0.658 mm-1,the final GOOF=0.975,R=0.0676 and wR=0.2068 for 6357 observed reflections with I 2σ(Ⅰ).The coordination polymer 1 possesses a 1D infinite zigzag chain architecture constructed by the dicarboxyl-functionalized metallosalen ligand (MnSalen),and the polymeric chains are further assembled into a 2D supramolecular network structure via strong intermolecular hydrogen bonding interactions between the adjacent zigzag chains. 展开更多
关键词 crystal structure SALEN manganese complex
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Synthesis and Crystal Structure of a Manganese(Ⅱ) Complex with 2-(4′-Chlorine-benzoyl)-benzoic Acid and 1,10-Phenanthroline 被引量:1
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作者 王庆伟 李秀梅 +2 位作者 孟庆龙 刘博 高广刚 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2009年第3期335-337,共3页
A new metal-organic complex Mn2(cbba)4(phen)2 (Hcbba = 2-(4'-chlorine-benzoyl)- benzoic acid, phen = 1,10-phenanthroline) 1 has been hydrotherrnally synthesized and structurally characterized by single-crysta... A new metal-organic complex Mn2(cbba)4(phen)2 (Hcbba = 2-(4'-chlorine-benzoyl)- benzoic acid, phen = 1,10-phenanthroline) 1 has been hydrotherrnally synthesized and structurally characterized by single-crystal X-ray diffraction, elemental analyses and IR spectroscopy. The compound crystallizes in orthorhombic, space group Pbcn with α = 12.154(5), b = 18.166(7), c = 31.197(13) A, V = 6887(5) A^3, C80H48Cl4Mn2N4O12, Mr= 1508.90, Dc = 1.455 g/cm^3, μ(MoKα) = 0.591 mm^-1, F(000) = 3080, Z = 4, the final R = 0.0408 and wR = 0.0873 for 4033 observed reflections (I 〉 2σ(I)). In the crystal structure, the manganese atom is six-coordinated with four carboxylate oxygen atoms from three different cbba ligands and two nitrogen atoms from phen ligands, showing a distorted octahedral geometry. Furthermore, it exhibits a 3D supramolecular network through π-π interactions. 展开更多
关键词 hydrothermal synthesis crystal structure manganese complex
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Synthesis and Crystal Structure of a Three-dimensional Manganese(Ⅱ)Complex Constructed via Covalent and Hydrogen Bonds 被引量:1
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作者 WANGRui-Hu ChenLi-Hua 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2003年第1期50-54,共5页
The assembly of 1,4-benzenedicarboxylic acid (H2bdc), 4,4?bipyridine (4,4?bipy), trimethyltin chloride and MnBr24H2O in hydrothermal conditions gave rise to a hydrogen-bonded three-dimensional complex {[Mn(4,4?bipy)4H... The assembly of 1,4-benzenedicarboxylic acid (H2bdc), 4,4?bipyridine (4,4?bipy), trimethyltin chloride and MnBr24H2O in hydrothermal conditions gave rise to a hydrogen-bonded three-dimensional complex {[Mn(4,4?bipy)4H2O](bdc)}n which has been characterized by single- crystal X-ray diffraction. The complex crystallizes in the monoclinic system, space group P2/n with a = 7.0001(2), b = 11.5540(3), c = 11.4192(1) ? = 101.754(2)? V = 904.21(4) 3, Z = 2, C18H20MnN2O8, Mr = 447.30, Dc = 1.643 g/cm3, F(000) = 462 and m(MoK? = 0.783 mm-1. The final R and wR are 0.0499 and 0.1301, respectively for 1335 observed reflections with I ≥ 2(I). The Mn (Ⅱ) is six-coordinated in a distorted octahedral geometry. 4,4?Bipyridine in a m-bridge mode links [Mn(H2O)4]2+ into a linear cation chain. bdc acts as a counter anion and links the linear chains into a three-dimensional structure through hydrogen bonds. 展开更多
关键词 manganese () complex crystal structure synthesis hydrogen bonds
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Synthesis and Crystal Structure of a Bimetallic Cyanide-bridged Complex Derived from Manganese(Ⅲ) Schiff-base Complex and Pentacyanidonitrosylferrate(Ⅱ) Building Blocks
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作者 王婷婷 谢吉民 +2 位作者 夏昌坤 吴云龙 荆俊杰 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2010年第8期1265-1269,共5页
A new cyanide-bridged bimetallic assembly [Mn(3-meosalpn)(H2O)]2[Fe(CN)5NO](1) was obtained by the reaction of [Fe(CN)5NO]2-with [Mn(3-meosalpn)]+,and characterized by elemental analysis,IR and single-cry... A new cyanide-bridged bimetallic assembly [Mn(3-meosalpn)(H2O)]2[Fe(CN)5NO](1) was obtained by the reaction of [Fe(CN)5NO]2-with [Mn(3-meosalpn)]+,and characterized by elemental analysis,IR and single-crystal X-ray structure analysis.The complex crystallizes in the monoclinic system,space group P21/c with a = 12.992(5),b = 13.274(6),c = 14.644(6) ,β = 115.198(4)o,V = 2285.2(16)3,Z = 2,C43H44FeMn2N10O11,Mr = 1042.61,Dc = 1.515 g/cm3,F(000) = 1072,μ = 0.928 mm-1,S = 1.052,the final R = 0.0347 and wR = 0.0957 for 17377 observed reflections(Ⅰ 〉 2σ(Ⅰ)).X-ray single-crystal diffraction analysis reveals that 1 has a trinuclear molecular structure,in which the two [Mn(3-meosalpn)(H2O)]+ cations are linked by the central [Fe(CN)5NO]2-anion via two trans CN-groups.Furthermore,the two [Mn(3-meo-salpn)(H2O)]+ cations and [Fe(CN)5NO]2-anion are connected into a one-dimensional zigzag chain through hydrogen bonding interactions. 展开更多
关键词 manganese complex Schiff base pentacyanidonitrosylferrate( crystal structure
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Hydrothermal Synthesis, Crystal Structure and Magnetic Properties of a Novel Zero-dimensional Manganese(Ⅱ) Complex with 2,2′-Diphenic Acid and 1,10-Phenanthroline Ligands
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作者 王庆伟 关莹 +3 位作者 李秀梅 高广刚 刘博 历凤燕 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2007年第9期1066-1070,共5页
A novel metal-organic coordination polymer [Mn3(2,2′-dipha)3(phen)6]n·3nH2O (2,2′-dipha = 2,2′-diphenic acid, phen = 1,10-phenanthroline) 1 has been hydrothermally synthesized and structurally characteri... A novel metal-organic coordination polymer [Mn3(2,2′-dipha)3(phen)6]n·3nH2O (2,2′-dipha = 2,2′-diphenic acid, phen = 1,10-phenanthroline) 1 has been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction, elemental analyses, IR spectroscopy, and magnetic susceptibility measurements. The crystal crystallizes in triclinic, space group P1 with a = 16.921(5), b = 18.307(5), c = 18.450(5)A , α = 113.369(5), β = 108.529(5), γ = 102.984(5)°, V = 4553(2)A^ 3, C114H72Mn3N12O14.25, Mr = 2002.66, Dc = 1.461 g/cm^3, μ(MoKα) = 0.488 mm^-1, the final F(000) = 2058, Z = 2, R = 0.0491 and wR = 0.0980 for 9087 observed reflections (I 〉 2σ(I)). In the crystal structure, the manganese atom is six-coordinated with two carboxylate oxygen atoms from different carboxylate groups of the same dipha and four nitrogen atoms from two different phen ligands, showing a slightly distorted octahedral geometry. Fur- thermore, it exhibits a zero-dimensional structure with dipha-Mn-phen- as building units. Variable- temperature magnetic measure shows an overall anti-ferromagnetic behavior for compound 1. 展开更多
关键词 hydrothermal synthesis crystal structure manganese complex magnetic properties
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Hydrothermal Synthesis and Crystal Structure of a New Manganese(II) Complex with 2,4-Pyridine-dicarboxylic Acid and 2,2′-Bipyridine Ligands 被引量:2
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作者 李秀梅 王庆伟 +3 位作者 崔运成 李传碧 刘博 孙丽娟 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2009年第10期1317-1320,共4页
A new metal-organic complex [Mn2(PDC)2(bipy)2(H2O)2] (H2PDC = 2,4-pyridine-dicarboxylic acid, bipy = 2,2′-bipyridine) 1 has been hydrothermally synthesized and structurally characterized by elemental analysis... A new metal-organic complex [Mn2(PDC)2(bipy)2(H2O)2] (H2PDC = 2,4-pyridine-dicarboxylic acid, bipy = 2,2′-bipyridine) 1 has been hydrothermally synthesized and structurally characterized by elemental analysis, IR spectrum, TG and single-crystal X-ray diffraction. The compound crystallizes in triclinic, space group P ^-1 with a = 7.376(3), b = 9.990(4), c = 11.950(5) A^°, α= 75.217(5), β = 78.052(5), γ = 70.655(5)°, V = 796.0(5)A^°3, C34HE6Mn2N6O10, Mr = 788.49, De = 1.645 g/cm^3,μ(MoKa) = 0.866 mm^-1, F(000) = 235, Z = 1, the final R = 0.0425 and wR = 0.0700 for 1971 observed reflections (I 〉 2σ(I)). In the crystal structure, the manganese atom is six-coordinated by two carboxylate oxygen atoms from two different PDC ligands, one aqua ligand, and three nitrogen atoms from 2,2′-bipy and PDC ligands, giving a distorted octahedral geometry. It exhibits a three-dimensional supramolecular network defined by O-H…O hydrogen-bonding interactions. 展开更多
关键词 hydrothermal synthesis crystal structure manganese complex
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Synthesis and Crystal Structure of a Three-dimensional Manganese(II) Complex (tataH)_2[Mn(pydc)_2]·4H_2O (tata = 2,4,6-Triamino-1,3,5-triazine, pydcH_2 = Pyridine-2,6-dicarboxylic Acid)
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作者 孙一峰 李季坤 崔一平 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2008年第6期712-716,共5页
A manganese(Ⅱ) complex (tataH)2[Mn(pydc)2]·4H2O (C20H28MBN14O12, Mr = 711.50, tata = 2,4,6-triamino-1,3,5-triazine, pydcH2 = pyridine-2,6-dicarboxylic acid) has been synthesized and its crystal structure... A manganese(Ⅱ) complex (tataH)2[Mn(pydc)2]·4H2O (C20H28MBN14O12, Mr = 711.50, tata = 2,4,6-triamino-1,3,5-triazine, pydcH2 = pyridine-2,6-dicarboxylic acid) has been synthesized and its crystal structure was determined by single-crystal X-ray diffraction. The crystal belongs to the triclinic system, space group P1^-, with a = 9.9847(3), b = 10.9813(3), c = 15.2616(5)A, a = 101.5310(10), β = 90.2610(10), γ = 116.4600( 10)% V = 1459.44(8)A^3, Z = 2, Dc = 1.619 g/cm^3,μ = 0.539 mm^-1, F(000) = 734, the final R = 0.0292 and wR = 0.0745. In the crystal the Mnn atom is six-coordinated by four carbonyl oxygen atoms and two pyridine nitrogen atoms from two tridentate pydc ligands to furnish a distorted octahedral geometry. The complex shows the A…D…D'…A' H-bonded tetramer. The molecules are packed in a three-dimensional framework structure by the combination of O-H…O, N-H…O and N-H…N hydrogen bonds between (tataH)^+, [Mn(pydc)2]^2- and crystal water. 展开更多
关键词 manganese complex 2 6-pyridinedicarboxylic acid hydrogen-bonding interaction crystal structure
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Synthesis,Spectral and Magnetic Studies of Novel Oxamido Heterotrinuclear Complexes Cu(Ⅱ)-Mn (Ⅱ)-Cu(Ⅱ),Cu(Ⅱ)-Co(Ⅱ)-Cu(Ⅱ)
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作者 LIU Zong-ming, LIAO Dai-zheng, JIANG Zong-hui and WANG Geng-lin (Department of Chemistry, Nankai University, Tianjin, 300071)Visiting Scholar,Department of Pharmacy, Tianjin Second Medical College.Tianjin. 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1992年第2期138-142,共5页
关键词 Oxamido-bridge Copper ( )-manganese ( )-Copper ( ) complex Copper( )-Cobalt( )-Copper( ) complex MAGNETISM
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Hydrothermal Syntheses and Crystal Structures of Two Complexes with 3,5-Dinitrosalicylate and 2,2′-Bipyridine Ligands
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作者 温德才 刘世雄 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2007年第11期1362-1368,共7页
The two title complexes, [Cd{3,5-(NO2)2sal}(2,2′-bipy)]n 1 and [Mn{3,5- (NO2)2sal}(2,2′-bipy)]n 2 (3,5-(NO2)2sal = 3,5-dinitrosalicylate, 2,2'-bipy = 2,2′-bipyridine), were synthesized by the hydrother... The two title complexes, [Cd{3,5-(NO2)2sal}(2,2′-bipy)]n 1 and [Mn{3,5- (NO2)2sal}(2,2′-bipy)]n 2 (3,5-(NO2)2sal = 3,5-dinitrosalicylate, 2,2'-bipy = 2,2′-bipyridine), were synthesized by the hydrothermal reaction and structurally characterized. Complex 1 crystallizes in triclinic, space group P1, a = 5.581(4), b = 12.071(8), c = 12.88(1)A, α= 92.10(3),β= 96.73(3), γ = 102.02(2)°, C17H10N407Cd, Mr = 494.69, V= 841(1)A3, Z = 2, Dc = 1.954 g/cm3, F(000) = 488, μ= 1.353 mm^-1, R = 0.0248 and wR = 0.0761. Complex 2 crystallizes in monoclinic with space group P21/c, a = 8.604(3), b = 23.88(1), c = 8.894(3) A, β = 102.45(1)°, C17H10N407Mn, Mr = 437.23, V= 1785(1) A3, Z=.4, Dc = 1.627 g/cm3, F(000) = 884, μ = 0.791 mm^-1, R = 0.0471 and wR = 0.1250. Complex 1 possesses an infinite 1D polymeric chain structure consisting of the repeated basic four-membered ring units (Cd2O2) and eight-membered ring units (CdOCO)2. Compound 2displays a linear 1D chain through Mn(Ⅱ) atoms and bridging carboxylate groups of 3,5-dinitrosalicylic acid ligands with the Mn…Mn separation of 4.472(2)A. The fluorescence properties and cyclic voltammetric behaviors of the complexes are also reported. 展开更多
关键词 cadmium( complex manganese complex crystal structure hydrogen bond fluorescence property electrochemical property
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菲咯啉与1-萘甲酸配体共同构筑的多核Ca(Ⅱ)、双核Mn(Ⅱ)配合物的合成、结构及性质 被引量:1
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作者 杨婷英 郭丹 +5 位作者 胡宇琼 易思佳 谷淑琪 贺霞 朱小明 张复兴 《无机化学学报》 SCIE CAS CSCD 北大核心 2023年第1期117-126,共10页
设计、合成了2种配合物:[Ca(Phen)(Nap)_(2)]_(n)(1)和[Mn_(2)(Phen)_(2)(Nap)_(4)(H_(2)O)](2)(Phen=菲咯啉,HNap=1-萘甲酸)。通过红外光谱、元素分析、X射线单晶衍射和热重对其进行了结构表征。测定了配合物的激发光谱、发射光谱,以... 设计、合成了2种配合物:[Ca(Phen)(Nap)_(2)]_(n)(1)和[Mn_(2)(Phen)_(2)(Nap)_(4)(H_(2)O)](2)(Phen=菲咯啉,HNap=1-萘甲酸)。通过红外光谱、元素分析、X射线单晶衍射和热重对其进行了结构表征。测定了配合物的激发光谱、发射光谱,以及配合物对人肺癌细胞(NCI-H460)、人乳腺癌细胞(MCF-7)、人肝癌细胞(HepG2)的体外抑制活性;利用紫外吸收光谱、荧光分光光度法研究了配合物与小牛胸腺DNA的相互作用。结果表明:配合物1、2的激发光谱和发射光谱具有很好的镜像关系,且配合物2的斯托克斯位移大于配合物1;配合物对3种癌细胞都有较好的抑制作用,但是2更优于1;配合物1和2与小牛胸腺DNA以静电作用发生沟面结合,结合常数分别为5.83×10^(3)和6.46×10^(3)L·mol^(-1)。 展开更多
关键词 多核Ca()配合物 双核Mn()配合物 晶体结构 DNA作用 体外抗癌活性
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基于氮氧自由基配体的锰和钴双核配合物的分子结构和磁性
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作者 冯勋 方海鹏 +3 位作者 安杨 张策 陈雪怡 郭博文 《无机化学学报》 SCIE CAS CSCD 北大核心 2024年第2期421-429,共9页
合成了2个基于氮氧自由基配体且结构类似的双核配位化合物,其分子式分别为[Mn_(2)(hfac)_(4)(NIT-mo-pmy)_(2)](1)和[Co_(2)(hfac)_(4)(NIT-mo-pmy)_(2)](2),其中hfac=六氟乙酰丙酮,NIT-mo-pmy=2-(2-甲氧基-5’-嘧啶基)-4,4,5,5-四甲基... 合成了2个基于氮氧自由基配体且结构类似的双核配位化合物,其分子式分别为[Mn_(2)(hfac)_(4)(NIT-mo-pmy)_(2)](1)和[Co_(2)(hfac)_(4)(NIT-mo-pmy)_(2)](2),其中hfac=六氟乙酰丙酮,NIT-mo-pmy=2-(2-甲氧基-5’-嘧啶基)-4,4,5,5-四甲基咪唑啉基-3-氧-1-氧自由基。2个配合物均属于三斜晶系P1空间群,其双核配位单元进一步构筑为中心对称的平行四边形分子阵列。变温磁化率的测试表明,在2个配合物中,中心离子和氮氧自由基单元之间存在反铁磁交换作用。借助构效关系研究,分析了磁作用强度的差异。通过适当近似的磁化学模型,对Mn(Ⅱ)配合物的磁性行为进行了定量拟合,并与相关化合物磁作用强度进行了比对、分析。 展开更多
关键词 锰()配合物 钴()配合物 晶体结构 NIT-mo-pmy自由基配体 反铁磁相互作用
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若干锰(Ⅱ)配合物的合成及其清除活性氧效能的研究 被引量:16
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作者 梅光泉 田亚平 +1 位作者 方允中 罗勤慧 《无机化学学报》 SCIE CAS CSCD 北大核心 2002年第4期357-361,共5页
合成了三种锰?配合物,通过多种物理方法进行了表征,推断了它们的结构式。用核黄素光照法测定了它们的超氧化物歧化酶活性,并对其清除多形核白细胞(PMNL)呼吸爆发产生的活性氧及黄嘌呤与黄嘌呤氧化酶体系产生的·O2-及H2O2-Fe2+产生... 合成了三种锰?配合物,通过多种物理方法进行了表征,推断了它们的结构式。用核黄素光照法测定了它们的超氧化物歧化酶活性,并对其清除多形核白细胞(PMNL)呼吸爆发产生的活性氧及黄嘌呤与黄嘌呤氧化酶体系产生的·O2-及H2O2-Fe2+产生的·OH的效能进行了研究,结果表明能降低活性氧导致的鲁米诺化学发光值;降低·O2-与DMPO加合物的ESR波谱信号,减少·O2-损伤膜提取物产生的脂类过氧化物产量;对·OH与DMPO加合物的ESR波谱无影响,说明这三种配合物确具有SOD样活性。 展开更多
关键词 锰配合物 大环 活性氧 超氧化物歧化酶 活性
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一种新型双核锰(Ⅱ)配合物的合成、表征及磁性能研究 被引量:4
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作者 庞海霞 龚兴厚 +1 位作者 张正强 刘伟 《人工晶体学报》 EI CAS CSCD 北大核心 2015年第7期2011-2016,共6页
以Mn(CH3COO)2·4H2O和邻羟基苯甲醛缩4-氨基安替比林为原料,采用溶剂热法成功合成出一个新型双核锰(II)配合物([Mn(L-)(CH3COO)2]HL=邻羟基苯甲醛缩4-氨基安替比林),并通过X射线单晶衍射、红外光谱、元素分析、热重分析、X-粉末衍... 以Mn(CH3COO)2·4H2O和邻羟基苯甲醛缩4-氨基安替比林为原料,采用溶剂热法成功合成出一个新型双核锰(II)配合物([Mn(L-)(CH3COO)2]HL=邻羟基苯甲醛缩4-氨基安替比林),并通过X射线单晶衍射、红外光谱、元素分析、热重分析、X-粉末衍射、磁性分析和紫外分析等手段对该配合物进行表征及性质研究。结果表明双核锰配合物属于三斜晶系,空间群为P1,晶胞参数:a=0.81298(7)nm,b=0.95766(9)nm,c=1.32046(12)nm,α=100.9290(10)°,β=90.3510(10)°,γ=108.7220(10)°,V=0.95351(15)nm3,Z=1,Dc=1.464 Mg/m3,F(000)=434,μ=0.724 mm-1,R1=0.0346,wR2=0.1106[I>2σ(I)]。 展开更多
关键词 希夫碱 溶剂热法 晶体结构 锰()配合物 磁性能
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N_2-苯浮选分光光度法测定环境水样中痕量锰(Ⅱ)(英文) 被引量:2
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作者 侯延民 李春香 +2 位作者 黄卫红 谢吉民 闫永胜 《冶金分析》 CAS CSCD 北大核心 2007年第11期21-24,共4页
在碱性介质中,Mn(Ⅱ)离子与1-10邻二氮杂菲(phen)和四碘荧光素(TIF)在一定条件下可形成三元缔合物,该缔合物在水中不稳定,但可以在有机溶剂苯中稳定存在,据此建立了溶剂浮选和光度法联用测定痕量锰(Ⅱ)的新方法。该法具有较高的灵敏度(... 在碱性介质中,Mn(Ⅱ)离子与1-10邻二氮杂菲(phen)和四碘荧光素(TIF)在一定条件下可形成三元缔合物,该缔合物在水中不稳定,但可以在有机溶剂苯中稳定存在,据此建立了溶剂浮选和光度法联用测定痕量锰(Ⅱ)的新方法。该法具有较高的灵敏度(ε=9.6×105L.mol-1.cm-1)和良好的选择性,可用于天然水样中痕量锰(Ⅱ)的测定。 展开更多
关键词 溶剂浮选 三元缔合物 分光光度法
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若干大环铜(Ⅱ)、锰(Ⅱ)配合物模拟超氧化物歧化酶的研究 被引量:1
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作者 梅光泉 晏细元 +1 位作者 袁晓玲 黄可龙 《化学试剂》 CAS CSCD 北大核心 2005年第4期201-203,共3页
用核黄素光照法测定了,8种大环铜(Ⅱ)、锰(Ⅱ)配合物的超氧化物歧化酶活性(SOD),结果表明,它们在1×10-4-1×10-7mol/L的浓度范围内均有50%以上抑制率,锰(Ⅱ)配合物表现出较铜(Ⅱ)配合物更低的SOD活性,对各模型化合物活性和结... 用核黄素光照法测定了,8种大环铜(Ⅱ)、锰(Ⅱ)配合物的超氧化物歧化酶活性(SOD),结果表明,它们在1×10-4-1×10-7mol/L的浓度范围内均有50%以上抑制率,锰(Ⅱ)配合物表现出较铜(Ⅱ)配合物更低的SOD活性,对各模型化合物活性和结构的关系进行了探讨。 展开更多
关键词 铜()配合物 锰()配合物 大环 超氧化物歧化酶 活性
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3,8-二噻吩和3,8-二甲基噻吩-1,10-菲啰啉的锰(Ⅱ)和钴(Ⅱ)配合物的晶体结构、顺反异构及取代基效应研究(英文) 被引量:1
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作者 胡斌 颜流水 +1 位作者 张爱琴 黄伟 《无机化学学报》 SCIE CAS CSCD 北大核心 2012年第12期2540-2547,共8页
本文报道了1个基于3,8-二噻吩-1,10-菲哕啉(dtphen)的双核锰(Ⅱ)配合物1[trans—Mn2Cl4(dtphen)2]和2个基于3,8-二甲基噻吩-1,10.菲哕啉(dmtphen)的单核锰(Ⅱ)和单核钴(Ⅱ)配合物2和3(分子式分别为[cis-MnCl:(dmtp... 本文报道了1个基于3,8-二噻吩-1,10-菲哕啉(dtphen)的双核锰(Ⅱ)配合物1[trans—Mn2Cl4(dtphen)2]和2个基于3,8-二甲基噻吩-1,10.菲哕啉(dmtphen)的单核锰(Ⅱ)和单核钴(Ⅱ)配合物2和3(分子式分别为[cis-MnCl:(dmtphen)2]和[cis-CoCl2(dmtphen)2])的合成、波谱和晶体结构表征。其中。2个锰(Ⅱ)配合物的分子结构呈现不同的配位模式,由于噻吩环上甲基引入所产生的位阻效应.导致单核配合物2和3中,两配体中的噻吩环相对于1,10-菲哆啉环呈现相同的反式/反式分子构型,其二面角分布在14.1(1)°51.5(1)°。而对于双核配合物1,由于没有甲基位阻的影响,其相应芳环之间二面角减少至2.0(1)°~20.2(1)°,且配体呈现顺式/反式分子构型。 展开更多
关键词 锰()配合物 钴()配合物 取代基效应 顺反异构 晶体结构
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二维Mn(Ⅱ)配位聚合物的水热合成、晶体结构和性质(英文) 被引量:1
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作者 刘国成 黄晶晶 +2 位作者 王秀丽 杨宋 田爱香 《无机化学学报》 SCIE CAS CSCD 北大核心 2012年第8期1724-1728,共5页
通过水热方法合成了一个二维配位聚合物[Mn(NIPA)(L)]n(1)(L=二(5,6-二甲基苯并咪唑基)-1,3-丙烷、H2NIPA=5-硝基间苯二甲酸),并通过元素分析、IR、单晶X-射线衍射对其进行了结构表征。结果表明化合物1(MnC29H27N5O6)属三斜晶系:P1,a=1.... 通过水热方法合成了一个二维配位聚合物[Mn(NIPA)(L)]n(1)(L=二(5,6-二甲基苯并咪唑基)-1,3-丙烷、H2NIPA=5-硝基间苯二甲酸),并通过元素分析、IR、单晶X-射线衍射对其进行了结构表征。结果表明化合物1(MnC29H27N5O6)属三斜晶系:P1,a=1.029 41(10),b=1.057 10(10),c=1.324 91(12)nm,Z=2,V=1.395 5(2)nm3,Mr=596.50,Dc=1.420 g.cm-3,F(000)=618,μ=0.525 mm-1,S=1.027,R=0.041 7,wR=0.097 5。结构分析表明每个Mn髤与2个L配体上的2个氮原子、来自3个不同NIPA上的2个螯合氧原子以及2个单齿氧原子形成六配位模式。相邻的由2个羧基连接成的双核Mn髤簇通过成对的NIPA连接成一维双链结构,进而通过成对的L配体拓展成二维(4,4)网络。此外,还研究了该化合物的热稳定性和荧光性质。 展开更多
关键词 水热合成 晶体结构 锰髤配合物 光致发光性质
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2-(4-甲基苯甲酰基)苯甲酸构筑的锰Ⅱ配合物的晶体结构、电化学、荧光及磁性研究(英文) 被引量:2
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作者 陈志敏 杨颖群 易正戟 《无机化学学报》 SCIE CAS CSCD 北大核心 2014年第3期659-663,共5页
以2-(4-甲基苯甲酰基)苯甲酸(HL)为配体合成了一个新的锰((Ⅱ)配合物Mn(L)2(2,2’-bipy)2。该配合物晶体属单斜晶系,空间群P21/c,晶胞参数:a=1.719 8(2) nm,b=1.039 80(14) nm,c=2.346 3(3) nm,β=95.732(3)&... 以2-(4-甲基苯甲酰基)苯甲酸(HL)为配体合成了一个新的锰((Ⅱ)配合物Mn(L)2(2,2’-bipy)2。该配合物晶体属单斜晶系,空间群P21/c,晶胞参数:a=1.719 8(2) nm,b=1.039 80(14) nm,c=2.346 3(3) nm,β=95.732(3)°,V=4.174 8(9) nm3,Dc=1.346 g·cm-3,Z=4, μ(Mo Kα)=0.373 mm-1,F(000)=1 756,最终偏离因子R1=0.042 3,wR2=0.094 9。标题配合物的中心锰(Ⅱ)离子处于变形的八面体配位环境中。测定了配合物的电化学、荧光和磁性。结果表明:在循环伏安过程中,配合物的电子转移是准可逆的,对应的电极反应是Mn(Ⅲ)/Mn(Ⅱ);配合物在536~556 nm之间有一个较强的荧光发射峰;在300~2 K,配合物有反铁磁性。 展开更多
关键词 锰()配合物 2-(4-甲基苯甲酰基)苯甲酸 晶体结构 电化学 荧光和磁性
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