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Synthesis, Crystal Structure and Properties of a New Binuclear Copper(Ⅱ) Complex with 5-Oxo-4-oxa-tricyclo[4.2.1.0]nonane-9-carboxylic Acid(TNCA) 被引量:2
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作者 李薇 李玉林 +1 位作者 李昶红 谭雄文 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2018年第5期819-824,共6页
A new binuclear copper(Ⅱ) complex [Cu2(Hpt)2(TNCA)2(H2O)2]·4 H2O(1) has been synthesized with copper acetate, 5-oxo-4-oxa-tricyclo[4.2.1.0]nonane-9-carboxylic acid(TNCA) and 3-(pyridin-2-yl)-1,2,4-... A new binuclear copper(Ⅱ) complex [Cu2(Hpt)2(TNCA)2(H2O)2]·4 H2O(1) has been synthesized with copper acetate, 5-oxo-4-oxa-tricyclo[4.2.1.0]nonane-9-carboxylic acid(TNCA) and 3-(pyridin-2-yl)-1,2,4-triazole(Hpt). It crystallizes in the triclinic space group P-1, with a = 8.8199(18), b = 14.278(3), c = 15.269(3) A, α = 76.21(3)o, β = 81.07(3)o, γ = 76.07(3)o, V = 1802.7(6) A3, Dc = 1.636 g/cm3, Z = 2, F(000) = 916, the final GOOF = 1.051, R = 0.0556 and wR = 0.1388. The whole molecule consists of two copper ions bridged by two μ2-η^1:η^0-3-(pyridin-2-yl)-1,2,4-triazole anions. The coordination environment of the Cu(1) ion is CuO2N3, giving a distorted square pyramidal geometry. 1 exhibits antiferromagnetic interaction between Cu(Ⅱ) ions, the electron transfer of 1 is irreversible in electrode reactions and the TG analysis shows that 1 is stable below 440 K. 展开更多
关键词 binuclear copper(ⅱ) complex thermal stability electrochemical and magnetic properties
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Effects of binuclear copper(Ⅱ)threonine complex on blood glucose, lipids and protection of the hearts and kidneys in diabetic mice
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作者 谢英 王菲 +2 位作者 李菲菲 李明升 邓丽丽 《Journal of Chinese Pharmaceutical Sciences》 CAS 2007年第1期14-17,共4页
Aim To study the effects of binuclear copper (Ⅱ) threonine complex (Cu2 (Thr)4) as analogue of superoxide dismutase (SOD) on blood glucose, blood lipids and vessels of hearts and kidneys in diabetic mice. Met... Aim To study the effects of binuclear copper (Ⅱ) threonine complex (Cu2 (Thr)4) as analogue of superoxide dismutase (SOD) on blood glucose, blood lipids and vessels of hearts and kidneys in diabetic mice. Methods Diabetic mouse model was established by intraperitioneal injection of alloxan. Low, middle, and high doses of Cu2(Thr)4 at 0.002%, 0.02% and 0.1% were given respectively to diabetic mice following lavage. The fasting blood glucose was determined after the diabetic mice were given Cu2 (Thr)4 for 0, 30, and 45 d. The diabetic mice were killed on the 45th day. Then glycosylated hemoglobin (HbAlc) and blood lipids were assayed, and pathologic changes in hearts and kidneys stained with HE were observed. Results Compared with the control group in which the diabetic mice were given distilled water, the value of blood glucose reduced significantly in middle dose group (P 〈 0.01 ), followed by that in low dose group (P 〈 0.05). TC level reduced markedly and HDL level increased significantly in all three treatment groups (P 〈 0.05). Especially in middle dose group, cardiac muscle fibers were neatly arranged, nucleus and cytoplasm well distributed, glomeruli showing normal structure, cells well distributed and staining being normal. Conclusion Cu2 (Thr)4 reduces blood glucose, regulates blood lipids, and play protective action on the vessels of hearts and kidneys in diabetic mice. The effects of it in middle dose were better than those of other doses. 展开更多
关键词 binuclear copper (ⅱ threonine complex Diabetic mice Blood glucose Blood lipids
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Hydrothermal Synthesis,Crystal Structure and Thermal Stability of a Binuclear Copper(Ⅱ) Complex with 3-(Pyridin-2-yl)-1,2,4-triazole 被引量:7
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作者 李昶红 谭雄文 +1 位作者 李薇 杨颖群 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2011年第2期289-292,共4页
One novel binuclear copper(Ⅱ) complex [Cu 2 (Hpt) 2 (CO 3) 2 (H 2 O) 2 ]·H 2 O with copper carbonate and 3-(pyridin-2-yl)-1,2,4-triazole (Hpt) was hydrothermally synthesized and characterized by IR a... One novel binuclear copper(Ⅱ) complex [Cu 2 (Hpt) 2 (CO 3) 2 (H 2 O) 2 ]·H 2 O with copper carbonate and 3-(pyridin-2-yl)-1,2,4-triazole (Hpt) was hydrothermally synthesized and characterized by IR and X-ray diffraction analysis.The complex crystallizes in triclinic,space group P2 1 /n with a=0.6862(1),b=0.7805(1),c=1.1983(2) nm,α=72.03(2),β=107.72(3),γ=75.28(2)o,V=0.5884 nm 3,D c=2.105 g/cm 3,Z=1,F(000)=357,GOOF=1.041,the final R=0.01859 and wR=0.04348.The whole molecule is composed of two cooper ions,two Hpt molecules,two carbonate and three water molecules,forming a binuclear structure.The crystal structure shows that the cooper ion is coordinated with three nitrogen atoms from two Hpt molecules,two oxygen atoms from one carbonic acid and one water molecule,forming a distorted square pyramidal geometry.The TG analysis result shows that the title complex is stable under 131.0 ℃. 展开更多
关键词 copper(ⅱ) complex hydrothermal synthesis crystal structure thermal stability analysis
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Synthesis and Crystal Structure of Binuclear Copper (Ⅱ) Complex Containing (Dimethylaminomethyl)ferrocene 被引量:1
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作者 黄尊行 王秀丽 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2002年第5期505-508,共4页
A binuclear complex including ferrocenyl, Cu2{Fe(C5H5)[C5H4CH2N(CH3)2]}2 (CH3COO)4, was synthesized and characterized by X-ray diffraction. The title complex crystallizes in triclinic, space group P with a = 8.2779(8... A binuclear complex including ferrocenyl, Cu2{Fe(C5H5)[C5H4CH2N(CH3)2]}2 (CH3COO)4, was synthesized and characterized by X-ray diffraction. The title complex crystallizes in triclinic, space group P with a = 8.2779(8), b = 9.4830(8), c = 12.262(1) ? = 81.079(5), b = 80.620(4), g = 78.960(4), V = 924.4(1) 3, Z = 1, C34H46Cu2Fe2N2O8, Mr = 849.51, Dc = 1.526 g/cm3, l(MoK) = 0.71073 ? ?= 1.954 mm-1, F(000) = 438, R = 0.0297 and wR = 0.0901. Both cyclopentadienyl rings in each dmaf (dmaf = (dimethylaminomethyl)ferrocene, Fe(C5H5)- [C5H4CH2N(CH3)2]) have an eclipsed conformation. The binuclear molecule has a crystallographic centrosymmetry; four acetates and two Cu atoms form a cage structure with the distance between two neighboring Cu atoms of 2.655(1) . 展开更多
关键词 crystal structure copper complex binuclear complex (dimethylaminomethyl)- ferrocene
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Highly Selective Salicylate Membrane Electrode Based on N,N'- (Aminoethyl)ethylenediamide Bis(2-salicylideneimine) Binuclear Copper(Ⅱ) Complex as Neutral Carrier 被引量:1
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作者 孙爱丽 柴雅琴 +1 位作者 袁若 归国风 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2006年第7期894-898,共5页
A new ion selective electrode for salicylate based on N,N'-(aminoethyl)ethylenediamide bis(2-salicylideneimine) binuclear copper(Ⅱ) complex [Cu(Ⅱ)2-AEBS] as an ionophore was developed. The electrode has a l... A new ion selective electrode for salicylate based on N,N'-(aminoethyl)ethylenediamide bis(2-salicylideneimine) binuclear copper(Ⅱ) complex [Cu(Ⅱ)2-AEBS] as an ionophore was developed. The electrode has a linear range from 1.0 × 10^-1 to 5.0 ×10^-7 mol·L^- 1 with a near-Nemstian slope of ( - 55 ±1 ) mV/decade and a detection limit of 2.0 × 10-7 mol·L^-1 in phosphorate buffer solution of pH 5.0 at 25 ℃. It shows good selectivity for Sal^- and displays anti-Hofmeister selectivity sequence: Sal^-〉SCN^-〉 ClO4^- 〉I^-〉 NO2^- 〉Br^-〉 NO3^- 〉Cl^-〉 SO3^2- 〉 SO4^2- The proposed sensor based on binuclear copper(Ⅱ)complex has a fast response time of 5-10 s and can be used for at least 2 months without any major deviation. The response mechanism is discussed in view of the alternating current (AC) impedance technique and the UV-vis spectroscopy technique. The effect of the electrode membrane compositions and the experimental conditions were studied. The electrode has been successfully used for the determination of salicylate ion in drug pharmaceutical preparations. 展开更多
关键词 N N'-(aminoethyl)ethylenediamide bis(2-salicylideneimine) binuclear copper(ⅱ) neutral carrier SALICYLATE ion-selective electrode
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Hydrothermal Synthesis and Crystal Structure of Binuclear Copper(Ⅱ) Complex Bridged by 1,2,4,5- Benzenetetracarboxylato Trivalent Anion
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作者 YUANJi-xin HUMao-lin +1 位作者 LIJu-xia SONGXin-yuan 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2005年第1期21-23,共3页
The title complex [(phen) 2Cu(Htcb)Cu(phen) 2]H 3tcb(tcb=1,2,4,5-benzenetetracarboxylato tetravalent anion; phen=1,10-phenanthroline) was synthesized by the hydrothermal synthesis method. The crystal structure was ... The title complex [(phen) 2Cu(Htcb)Cu(phen) 2]H 3tcb(tcb=1,2,4,5-benzenetetracarboxylato tetravalent anion; phen=1,10-phenanthroline) was synthesized by the hydrothermal synthesis method. The crystal structure was determined by single-crystal X-ray diffraction analysis. It crystallizes in the triclinic system with space group P1, a=1.04174(8) nm, b=1.07119(8) nm, c=1.26360(10) nm, α=98.169(2)°, β=99.679(10)°, γ=93.658(10)°, V=1.37031(18) nm3, Z=1. The two copper(Ⅱ) cations are bridged by Htcb in the monodentate fashion, and have the same five-coordinated environment completed by the four N atoms from the two phen molecules and one O atom from the carboxylic group of Htcb respectively, which can be best described as distorted trigonal-bipyramid geometry. Moreover, the three dimensional network is formed by H-bonding interactions [O…O distance from 0.2506(10) nm to 0.3176(11) nm] and π-π stacking interactions between the phen rings of adjacent binuclear entities with a face-to-face separation of ca. 0.354 nm. 展开更多
关键词 binuclear complex copper() Crystal structure 1 2 4 5-Benzenetetracarboxylato trivalent anion bridged
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Synthesis, Properties and Structureof a Novel Unsymmetrical Bis (phenoxo) BridgedBinuclear Copper (Ⅱ) Complex
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作者 LU Tong-bu , LI Yan-wu, FENG Xiao-long CAl Ji-wen, LI Xiao-yan and JI Liang-nian (Department of Chemistry and Center of Measurement, Zhongshan University, Guangzhou 510275, P. R. China) 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2001年第2期148-152,共5页
A novel bis (phenoxo) bridged binuclear copper ( II) complex with dissimilar coordination environments was synthesized and characterized by spectroscopies and X-ray crystallography. It crystallized in the monoclinic... A novel bis (phenoxo) bridged binuclear copper ( II) complex with dissimilar coordination environments was synthesized and characterized by spectroscopies and X-ray crystallography. It crystallized in the monoclinic system with space group C2/c, a=2. 241 1(2) nm, b=1. 834 2 (2) nm, c=1.877 9(2) nm, β=122.861(2)°, V=6.484 3(11) nm3, Z=8. Itconsistsof two unsymmetrical Cu (Ⅱ ) centers bridged by two phenolic oxygen atoms to yield a Cu2O2 core with the Cu-Cu separation of 0. 310 2 nm, in which Cul and Cu2 ions exhibit distorted N2O3 and N3O2 square pyramidal geometries, respectively. 展开更多
关键词 copper binuclear complex CRYSTALLIZATION
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Synthesis and Crystal Structure of Binuclear Complex of Copper(Ⅱ)Chloroacetate with Acetamine
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作者 SHI Qian WANG Yao Yu ② TANG Zong Xun SHI Qi Zhen (Department of Chemistry, Northwest University, Xi’an 710069) 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 1999年第2期19-22,共4页
The title complex, Cu 2(O 2CCH 2Cl) 4 OC(NH 2)CH 3 2, crystallizes in space group P2 1/a with a=7.616(4), b=18.665(5), c=7.949(5) , β=106.29(5)°. V=1084(1) 3, Z=2, M r=619.19, D c =1.896 g/... The title complex, Cu 2(O 2CCH 2Cl) 4 OC(NH 2)CH 3 2, crystallizes in space group P2 1/a with a=7.616(4), b=18.665(5), c=7.949(5) , β=106.29(5)°. V=1084(1) 3, Z=2, M r=619.19, D c =1.896 g/cm 3; μ =25.05 cm -1 and F(000)=620.00, R =0.045 and R w =0.054 for 1807 observable reflections. X ray crystal structure analysis revealed that two Cu atoms are bridged by four chloroacetate groups, and the acetamine ligands are bonded by O(carboxide) to the terminal Cu atoms of each dimeric unit. The coordination geometry of Cu atom is a distorted octahedral configuration. The distance between the two Cu atoms is 2.648(1) . 展开更多
关键词 copper() chloroacetate binuclear complex crystal structure
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Crystal Structure and Molecular Structure of Binuclear Copper(Ⅱ) Complex, [Cu (C_5H_5NO) (C_6H_5COO)_2]_2
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作者 杨瑞娜 谌了容 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 1995年第2期122-126,共5页
At room temperature, dibenzoyl peroxide and pyridine N-oxide reacted with metallic copper powder in a mixed solvent(dichloromethane, trichloromethane and tetrahydrofuran), resulting in a binuclear copper(Ⅱ) complex. ... At room temperature, dibenzoyl peroxide and pyridine N-oxide reacted with metallic copper powder in a mixed solvent(dichloromethane, trichloromethane and tetrahydrofuran), resulting in a binuclear copper(Ⅱ) complex. [Cu (C_5H_5NO)-(C_6H_5COO)_2]_2. The structure of the complex was characterized by elemental analyses.IR spectra and X-ray single crystal analysis. The crystal is triclinic, space group P1,with cell parameters . a= 9. 262(4) ,b= 10. 697(2) , c=10. 881 (3 )A , a=59. 60( 2 ),β= 74. 83 ( 3 ) .Y = 72. 80 ( 2 )°. V= 880. 0 A ̄3 . D_c = 1 . 5 20 g/cm ̄3 . Z = 1 . μ= 1 2. 7 cm-1, R=0. 044 ,R_w=0. 048 for 3477 reflections with I>3σ(I), M_r=805. 78. Each copper(Ⅱ) atom is coordinated by four bridging bidentate benzoate ligands and one pyridine M-oxide. 展开更多
关键词 crystal structure binuclear copper complex oxidation addition
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Synthesis and Crystal Structure of a Novel Binuclear Cu(Ⅱ) Complex with Tetradentate Schiff-base Ligand 被引量:3
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作者 ZHAO Hai-Yan QIU Xiao-Hang +1 位作者 TONG Xiao-Lan SHEN Pan-Wen 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2006年第9期1095-1099,共5页
A novel binuclear complex ([Cu^2(μ2-shed)(hshed)].(CIO4),H2O, h2shed = N-salicylidene-N'-(2-hydroxyethyl)ethylenediamine) has been synthesized and structurally characterized by X-ray diffraction analysis. ... A novel binuclear complex ([Cu^2(μ2-shed)(hshed)].(CIO4),H2O, h2shed = N-salicylidene-N'-(2-hydroxyethyl)ethylenediamine) has been synthesized and structurally characterized by X-ray diffraction analysis. It crystallizes in monoclinic, space group P21/c with a = 12.511(10), b = 15.750(12), c = 14.281 (12) A, β = 100.564(14)°, C22H31CIN4O9Cu2, Mr = 658.04, V = 2766(4) A^3, Z = 4, Dc = 1.580 g/cm^3,μ(MoKα = 1.689 mm^-1, F(000) = 1352, the final R = 0.0528 and wR = 0.1433 for 4880 independent reflections with Rint = 0.0577. The complex is a binuclear copper compound, and two Cu(Ⅱ) ions in the binuclear cation are in different coordination environments. The Cu(1) ion adopts a distorted square pyramidal geometry (x = 0.22) with four donor atoms (N2O2) of the ligand in the basal plane, and one hydroxyl oxygen atom with protonated form occupying the apical position. The Cu(2) ion assumes the geometry of a distorted square plane with four donor atoms (N2O2) of the ligand. The Cu...Cu separation is 3.103 A,. In addition, N-H…O and C-H…O intermolecular hydrogen bonding interactions link these binuclear cations into a quasi one-dimensional chain along the a axis. 展开更多
关键词 Schiff base copper (ⅱ complex crystal structure hydrogen bonds
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Syntheses, Structures and Photoluminescence of the Cadmium(Ⅱ) and Copper(Ⅱ) Complexes Based on 4'-(4''-Pyridyl)-2,2':6',2''-terpyridine and 1,4-Benzenedicarboxylic Acid Ligands 被引量:3
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作者 张兴晶 王璐瑶 +2 位作者 尉兵 张文通 车广波 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2015年第7期1069-1079,共11页
Two new metal-organic complexes [Cd2(1,4-BDC)(4-pytyp)(H2O)4]·(1,4-BDC)(1) and [Cu2(1,4-BDC)(4-pytyp)2(H2O)2]·(1,4-BDC)·8H2O(2)(4-pytyp = 4'-(4''-pyridyl)-2,2':6',2''-terp... Two new metal-organic complexes [Cd2(1,4-BDC)(4-pytyp)(H2O)4]·(1,4-BDC)(1) and [Cu2(1,4-BDC)(4-pytyp)2(H2O)2]·(1,4-BDC)·8H2O(2)(4-pytyp = 4'-(4''-pyridyl)-2,2':6',2''-terpyridine, 1,4-H2 BDC = 1,4-benzenedicarboxylic acid) have been synthesized under hydrothermal conditions and characterized by elemental analysis, infrared analysis and X-ray single-crystal diffraction. The scrutiny of single-crystal structure reveals that complex 1 forms to a 3D supramolecular network linked by π-π stacking interactions and hydrogen bonds. X-ray diffraction analysis reveals that complex 2 exhibits a 3D supramolecular network linked through complicated hydrogen bonds. The thermogravimetric analysis and photoluminescent properties of 1 and 2 are discussed in detail. 展开更多
关键词 cadmium(ⅱ complex copper(ⅱ) complex 4'-(4''-pyridyl)-2 2':6' 2''-terpyridine 1 4-benzenedicarboxylic acid crystal structure
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Two Novel Copper(Ⅱ) Complexes with A Novel Ligand 2,4-Di(2-aminopyridine)-6-methylpyrimidine 被引量:2
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作者 MAHai-rui WANGYao-yu +4 位作者 LIUPing LIDong-sheng SHIQi-zhen LEEGene-hsiang PENGShie-ming 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2005年第3期365-367,共3页
关键词 Novel ligand copper() complex Cystal structure SUPRAMOLECULE
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Hydrothermal Synthesis and Crystal Structure of a Novel Hexanuclear Copper(Ⅱ) Complex:[Cu_6(DPPZ)_4(btc)_4(H_2O)_8]·5H_2O 被引量:3
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作者 刘春波 高林 +3 位作者 李秀颖 徐占林 王庆伟 车广波 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2011年第2期262-266,共5页
A new hexanuclear copper(Ⅱ) complex,[Cu 6 (DPPZ) 4 (btc) 4 (H 2 O) 8 ]·5H 2 O (1,DPPZ=dipyrido[3,2-a:2,3-c]phenazine,H 3 btc=1,3,5-benzenetricarboxylic acid),has been hydrothermally synthesized and st... A new hexanuclear copper(Ⅱ) complex,[Cu 6 (DPPZ) 4 (btc) 4 (H 2 O) 8 ]·5H 2 O (1,DPPZ=dipyrido[3,2-a:2,3-c]phenazine,H 3 btc=1,3,5-benzenetricarboxylic acid),has been hydrothermally synthesized and structurally characterized by X-ray single-crystal diffraction,elemental analyses,IR,and thermogravimetric analysis.Its crystal structure is of triclinic system,space group P1 with a=12.489(4),b=14.234(5),c=14.484(5),α=82.848(4),β=79.399(4),γ=73.646(4)°,V=2421.2(13) 3,Z=1,Cu 6 C 108 H 78 N 16 O 37,M r=2573.17,D c=1.752 g/cm 3,μ=1.398 mm-1,F(000)=1308,GOOF=1.011,the final R=0.0495 and wR=0.1030 for 5420 observed reflections with I 2σ(Ⅰ).In 1,four btc 3ligands act as bridges between six neighboring Cu atoms to form an unusual hexanuclear copper cluster.The clusters are further connected by two types of O-H···O and O-H···N hydrogen bonds,generating a three-dimensional supramolecular structure.In addition,intermolecular and intramolecular π-π stacking interactions further consolidate the three-dimensional supramolecular framework of 1. 展开更多
关键词 copper(ⅱ) complex dipyrido[3 2-a:2 3-c]phenazine 1 3 5-benzenetricarboxylic acid HEXANUCLEAR
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Synthesis and Characterization of Two Binuclear Macrocyclic Zinc(Ⅱ) Complexes by Anion Exchange 被引量:2
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作者 欧光川 黄中文 +2 位作者 潘泽毅 周东来 袁先友 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2014年第6期903-908,共6页
Two macrocyclic zinc(Ⅱ) complexes {[ZnL(VO3)2]·0.33H2O}n(1) and [ZnL(H2O)2][Ni(CN)4](2)(L = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane) have been obtained from the reactions of [Z... Two macrocyclic zinc(Ⅱ) complexes {[ZnL(VO3)2]·0.33H2O}n(1) and [ZnL(H2O)2][Ni(CN)4](2)(L = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane) have been obtained from the reactions of [ZnL](ClO4)2 with NH4VO3 and K2[Ni(CN)4], respectively, and structurally characterized by elemental analysis, IR, XRPD, TG and X-ray diffraction. Single-crystal X-ray diffraction analyses indicated that the Zn(Ⅱ) atom lies on an inversion center and is octahedrally coordinated by four nitrogen atoms of the tetradentate macrocyclic ligand in the equatorial plane and two oxygen atoms of [VO4] tetrahedra in the axial positions in 1, and two oxygen atoms of two water molecules in 2. Complex 1 shows a three-dimensional structure, which is constructed by the links of [VO3]nn- chains with [ZnL]2+, forming one-dimensional channels occupied by guest water molecules. The monomers of [ZnL(H2O)2]2+ and [Ni(CN)4]2- are connected through the intermolecular hydrogen bonds to form a two-dimensional sheet in complex 2. 展开更多
关键词 macrocyclic zinc(ⅱ complexes binuclear VANADIUM anion exchange
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Hydrothermal Synthesis, Crystal Structure and Fluorescence Properties of a Three-dimensional Triply-bridged Binuclear Zinc(Ⅱ) Complex [Zn_2(Mba)_3(Phen)_2EtOH)]·ClO_4 被引量:2
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作者 陈志敏 冯泳兰 +3 位作者 杨颖群 李薇 易正戟 陈满生 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2012年第12期1803-1809,共7页
The novel complex [Zn2(Mba)3(Phen)2EtOH)]·ClO4 (Hrnba = methoxybenzoic acid, Phen = 1,10-phenanthroline, EtOH = ethanol) was synthesized by hydrothermal reactions, and its structure was determined by X-ray... The novel complex [Zn2(Mba)3(Phen)2EtOH)]·ClO4 (Hrnba = methoxybenzoic acid, Phen = 1,10-phenanthroline, EtOH = ethanol) was synthesized by hydrothermal reactions, and its structure was determined by X-ray diffraction. The crystal belongs to the triclinic system, space group Pi with a = 1.15362(1), b = 1.3655(3), c = 1.61451(1) nm, α= 72.842(2), β = 83.259(3), y = 72.083(2)°, V = 2.3112(6) nm3, Z = 2,μ(MoKa) = 11.71 cm-1, F(000) = 1120, R = 0.0552 and wR = 0.1157 (I 〉 2σ(I)). The two centric zinc(H) ions in the complex locate in a distorted octahedral coordination geometry and a distorted trigonal bipyramid coordination geometry, respectively. Two bridging bidentate carboxyl groups and a μ2-O carboxyl group from three methoxybenzoic acids act as the bridge to link two Zn(Ⅱ) ions. The asymmetric units are connected by π-π packing interactions between aromatic rings to form a three-dimensional supramolecular network. The experimental results show a good fluorescence property for the complex. 展开更多
关键词 hydrothermal synthesis binuclear zinc(ⅱ complex triply-bridged crystal structure luminescence property
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A Novel Copper(Ⅱ) Complex of Asymmetrically N-Functionalized 1,4,7-Triazacyclononane Ligand: Syntheses, Structure, Electrochemical Property and Biological Activities 被引量:2
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作者 李庆祥 王武伦 孟祥高 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2018年第6期878-886,共9页
A novel copper(Ⅱ) complex derived from 1,4,7-triazacyclononane[CuL]_2(PF_6)_3×MeCN×H_2 O was synthesized and crystallographically characterized {L = 1,4-bis(2-carbamoylethyl)-7-benzimidazole-2-yl-meth... A novel copper(Ⅱ) complex derived from 1,4,7-triazacyclononane[CuL]_2(PF_6)_3×MeCN×H_2 O was synthesized and crystallographically characterized {L = 1,4-bis(2-carbamoylethyl)-7-benzimidazole-2-yl-methyl-1,4,7-triazacyclononane}. It crystallizes in triclinic, space group P1, with a = 13.2425(13), b = 14.0807(15), c = 17.6798(18), α = 86.296(2), β = 72.773(2), γ= 68.905(2)o, V = 2934.5(5)A^3, Z = 2, D_c = 1.611 g/m^3, F(000) = 1456, M_r = 1423.09, m = 0.920 mm^-1. The final R = 0.0671 and wR = 0.1874 for 6501 observed reflections with I 〉 2σ(I). The structural analysis shows that the complex cation([CuL]_2^3+) was formed by two complex cations, namely([CuL^3]^2+) and [CuL_(-H)~3]~+) through a hydrogen bond. In each complex cation, the Cu(Ⅱ) lies in a distorted square pyramidal geometry. The redox behavior was studied by cyclic voltammetry(CV) in aqueous solution which indicates a reversible one electron redox reaction. The result of UV absorption, ethidium bromide(EB) fluorescence spectra indicated that the complex binds to CT-DNA in an intercalative mode. Superoxide dismutase(SOD) activity of the complex was determined by photoreduction of NBT, and the value of IC_(50) is 5.22 μmol·L^-1. 展开更多
关键词 1 4 7-triazacyclononane copper(ⅱ) complex crystal structure electrochemical property DNA Superoxide dismutase
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Hydrothermal Synthesis, Crystal Structure and Properties of One Binuclear Nickel(Ⅱ) Complex with 3-(2-Pyridiyl)-1H-1,2,4-triazole 被引量:2
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作者 李昶红 李薇 +1 位作者 李安伍 谭雄文 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2018年第6期1004-1008,共5页
A new binuclear nickel(Ⅱ) complex [Ni_2(C_7 N_4 H_5)_3(C_9 H_9 O_2)]n has been hydrothermally synthesized with nickel sulfate, 3-(pyridin-2-yl)-1H-1,2,4-triazole and 3,5-dimethylbenzoic acid(3,5-DMBA). It c... A new binuclear nickel(Ⅱ) complex [Ni_2(C_7 N_4 H_5)_3(C_9 H_9 O_2)]n has been hydrothermally synthesized with nickel sulfate, 3-(pyridin-2-yl)-1H-1,2,4-triazole and 3,5-dimethylbenzoic acid(3,5-DMBA). It crystallizes in the triclinic space group P1 with a = 11.5769(7), b = 12.3115(7), c = 12.6431(7) A, α = 81.4860(10)o, β = 64.2830(10)o, γ = 63.7130(10)o, V = 1453.45(15) A^3, D_c = 1.604 g/cm^3, Z = 2, F(000) = 720, the final GOOF = 1.048, R = 0.0285 and wR = 0.0628. The crystal structure shows that the whole molecule consists of two nickel ions bridged by three μ_2-η~1:η~0-3-(pyridin-2-yl)-1,2,4-triazole anions. The coordination environment of Ni(Ⅱ) ion is NiO_2 N_4 and NiN_5, giving a distorted octahedral geometry and square pyramidal geometry respectively. The luminescence and thermal properties of the complex were investigated. 展开更多
关键词 binuclear nickel(ⅱ complex LUMINESCENCE thermal properties
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Synthesis,Crystal Structure,Spectroscopic Characterization,Thermal Stability and Magnetic Properties of a Dinuclear Copper(Ⅱ) Complex 被引量:2
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作者 LI Wei LI Chang-Hong +1 位作者 LI Heng-Feng TAN Xiong-Wen 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2015年第5期794-798,共5页
A new copper(Ⅱ) complex [Cu2(MNA)2(2,2‘-bipy)2]·2.5H2 O with methy-5-norbornene-2,3-dicarboxylic acid(MNA) and 2,2’-bipyridine as ligands has been synthesized in the mixed solvents of DMF and water.It ... A new copper(Ⅱ) complex [Cu2(MNA)2(2,2‘-bipy)2]·2.5H2 O with methy-5-norbornene-2,3-dicarboxylic acid(MNA) and 2,2’-bipyridine as ligands has been synthesized in the mixed solvents of DMF and water.It crystallizes in monoclinic,space group P 1,with a = 10.4191(11),b = 12.8883(13),c = 16.1114(16) A,α = 70.8090(10),β = 80.568(2),γ = 77.440(2)o,V = 1984.3(4) A^3,Dc = 1.551 g/cm^3,Z = 2,F(000) = 962,the final GOOF = 1.051,R = 0.0431 and w R= 0.0980.The crystal structure shows that the whole molecule consists of two independent dinuclear units,in which two copper ions are bridged by two μ2-η^1:η^0 3-carboxylate groups of MNA^2-.The coordination environment of Cu(Ⅱ) ion is Cu O3N2,giving a distorted square pyramidal geometry.The spectroscopic characterization,thermal stability and magnetic properties of the complex were investigated. 展开更多
关键词 copper(ⅱ) complex spectroscopic characterization thermal stability magnetic properties
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A Copper(Ⅱ)Complex Based on N-(4-hydroxybenzyl)-L-serine:Synthesis,Crystal Structure and Inhibitory Activity on PTP1B and TCPTP 被引量:2
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作者 李艳红 卢丽萍 +3 位作者 朱苗力 袁彩霞 冯思思 高增强 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2016年第11期1686-1693,共8页
A novel copper(II) complex with the reduced Schiff base, [Cu(L)2]·H2O (I, HL = N-(4-hydroxybenzyl)-L-serine), was prepared in aqueous solution and characterized by elemental analysis, FT-IR, electrospray ... A novel copper(II) complex with the reduced Schiff base, [Cu(L)2]·H2O (I, HL = N-(4-hydroxybenzyl)-L-serine), was prepared in aqueous solution and characterized by elemental analysis, FT-IR, electrospray ionization mass spectrometry and single-crystal X-ray diffraction. Complex I crystallizes in the orthorhombic system, space group P212121, with a = 8.9040(18), b = 9.1530(18), c = 24.891(5)A^°, V = 2028.6(7) A^°3, Z = 4, C20H26CuN2O9, Mr = 501.97, Dc = 1.644g·cm^3, μ = 1.135 mm^-1, F(000) = 1044, GOOF = 1.194, the final R = 0.0484 and wR = 0.1420 for 6186 observed reflections (I 〉 2σ(I)). In I, two L^- anions are coordinated to the copper ion in tridentate and bidentate chelating modes, respectively, resulting in the coordinated geometry of copper ion to be a distorted square pyramid. The intermolecular hydrogen bonds between the complexes, complexes and lattice water molecules lead to a 2D supramolecular network. The bioactivity of the complex as a potential PTPs inhibitory agent in vitro was investigated, displaying potent inhibition against PTP1B (IC50, 0.27 μM) and TCPTP (IC50, 0.57 μM) with a moderate selectivity. 展开更多
关键词 copper(ⅱ) complex N-(4-hydroxybenzyl)-L-serine crystal structure inhibitor PTP1B TCPTP
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Crystal Structure,Fluorescence and Thermal Stability Properties of a Dinuclear Copper(Ⅱ) Complex[Cu_2(L)_2(phen)_2]-5H_2O(H_2L = Bicycle[2.2.1]hept-2-en-5,6-dicarboxylic acid) 被引量:2
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作者 李昶红 李薇 +1 位作者 李衡峰 谭雄文 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2015年第12期1922-1926,共5页
A new dinuclear copper(II) complex [Cu2(L)2(phen)2]·5H2O (1) with bicycle[2.2.1 ]hept- 2-en-5, 6-dicarboxylic acid (H2L) and 1,10-phenanthroline (phen) as ligands has been synthesized in the mixed sol... A new dinuclear copper(II) complex [Cu2(L)2(phen)2]·5H2O (1) with bicycle[2.2.1 ]hept- 2-en-5, 6-dicarboxylic acid (H2L) and 1,10-phenanthroline (phen) as ligands has been synthesized in the mixed solvents of ethanol and water. It crystallizes in the monoclinic space group P21/c, with a = 17.925(4), b = 19.908(4), c = 11.235(2) A, β = 97.65(3)°, V= 3973.4(14) A3, Dc = 1.552 g/cm^3, Z = 8, F(000) = 1910, the final GOOF = 1.056, R= 0.0519 and wR= 0.1293. The crystal structure shows that the whole molecule consists of two independent dinuclear units, in which two copper ions are bridged by twoμ2-η1 :η0-3-carboxylate groups of L^2- anions. The fluorescence and thermal stability properties of 1 were studied. The results show that 1 has an intense fluorescent emission at around 381 rim. The TG analysis shows that I is stable below 143 ℃. 展开更多
关键词 dinuclear copper(ⅱ) complex FLUORESCENCE thermal stability properties
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