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1.
不对称大环双核铜(Ⅱ)配合物[Cu2(C23H26Cl2N4O2)](ClO4)2的合成、晶体结构及磁性 总被引:1,自引:0,他引:1
大环双核铜(Ⅱ)配合物由N,N′-二甲基-N,N′-二(3-甲酰基-5-氯水杨醛)乙二胺和1,3-丙二胺,与铜(Ⅱ)反应形成的,经过X-射线单晶衍射结果表明:a=0.871 05(16) nm,b=0.957 78(18) nm,c=1.810 4(3) nm,β=100.761(18)°,V=1.483 8(5) nm3,Z=2,Dc=1.762 Mg·m-3,μ=1.85 mm-1,F(000)=796,and final R1=0.061,wR2=0.126。晶体结构表明:两个铜离子位于双核大环中间,与大环的胺、亚胺以及酚羟基的氧进行配位。磁性结果表明配合物为反铁磁性。 相似文献
2.
Synthesis of Copper and Silver Complexes with Pentadentate N,S and Hexadentate N,O Chelate Ligands – Characterization and Crystal Structures of {Cu2[C6H4(SO2)NC(O)]2(C5H5N)4}, {Cu2[C5H3N(CHNC6H4SCH3)2]2}(PF6)2, and {Ag[C5H3N(CHNC6H4SCH3)2]}PO2F2 In the course of the reaction of copper(II)-acetate monohydrate with 2,2′-bisbenzo[d][1,3]thiazolidyl in methanol the organic component is transformed to N,N′-bis-(2-thiophenyl)ethanediimine and subsequently oxidized to the N,N′-bis-(2-benzenesulfonyl)ethanediaciddiamide H4BBSED, which coordinates in its deprotonated form two Cu2+ ions. Crystallisation from pyridine/n-hexane yields [Cu2(BBSED)(py)4] · MeOH. It forms triclinic crystals with the space group P1 and a = 995.5(2) pm, b = 1076.1(3) pm, c = 1120.7(2) pm, α = 104.17(1)°, β = 105.28(1)°, γ = 113.10(1)° and Z = 1. In the centrosymmetrical dinuclear complex the copper ions are coordinated in a square-pyramidal arrangement by three nitrogen and two oxygen atoms. The Jahn-Teller effect causes an elongation of the axial bond by approximately 30 pm. The reactions of the pentadentate ligand 2,6-Bis-[(2- methylthiophenyl)-2-azaethenyl]pyridine BMTEP with salts of copper(I), copper(II) and silver(I) yield the complexes [CU2(BMTEP)2](PF6)2, [Cu(BMTEP)]X2 (X = BF, C1O) and [Ag(BMTEP)]X (X = PO2F, ClO). [Cu2(BMTEP)2](PF6)2 crystallizes from acetone/diisopropyl- ether in form of monoclinic crystals with the space group C2/c, and a = 1833.2(3) pm, b = 2267.30(14) pm, c = 1323.5(2) pm, β= 118.286(5)°, and 2 = 4. In the dinuclear complex cation with the symmetry C2 the copper ions are tetrahedrally coordinated by two bridging BMTEP ligands. The Cu? Cu distance of 278.3pm can be interpreted with weak Cu? Cu interactions which also manifest itself in a temperature independent paramagnetism of 0.45 B.M. The monomeric silver complex [Ag(BMTEP)]PO2F2 crystallizes from acetone/thf in the triclinic space group P1 with a = 768.7(3) pm, b = 1074.0(5) pm, c = 1356.8(5) pm, α = 99.52(2)°, β = 96.83(2)°, γ = 99.83(2)° and Z = 2. The central silver ion is coordinated by one sulfur and three nitrogen atoms of the ligand in a planar, semicircular arrangement. The bond lengths Ag? N = 240.4–261.7 and Ag? S = 257.2 pm are significantly elongated in comparison with single bonds. 相似文献
3.
Sm(ClO4)3与N,N‘—二安替比林—1,6—己二酰胺(BAPHDCA)配合行为的相平衡 总被引:2,自引:0,他引:2
Sm(ClO4)3与N,N┐二安替比林┐1,6┐己二酰胺(BAPHDCA)配合行为的相平衡崔斌*唐宗薰张逢星郭志箴(西北大学化学系西安710069)关键词二安替比林-己二酰胺,高氯酸钐,相平衡,三元体系1997-08-06收稿,1998-01-05... 相似文献
4.
A novel organically templated copper pentaborate, [Cu(C3N2H4)4][Cu(CH3COO)2(C3N2H4)2(H2O)2]‐ [B5O6(OH)4]2, was synthesized by hydrothermal reaction and characterized by elemental analysis, single‐crystal X‐ray diffraction, FT‐IR spectroscopy, Raman spectroscopy and TGA. The crystal structure of this compound consists of two copper‐centered polyhedra and two discrete [B5O6(OH)4]? pentaborate anions, which are linked together through intensive hydrogen bonding interactions, forming a 3D framework with large channels along c axis. The discrete pentaborate anions form infinite layers by hydrogen bonds. Moreover, the two crystallographically different octahedral coppers are connected by common oxygen atom to form an infinite chain. 相似文献
5.
1 INTRODUCTION Synthesis of transition metal complexes with Schiff-base has been a subject of considerable importance [1,2]. They are not only good complexing agents for Schiff-base, but also good bactericide and antitumour agent [3,4]. At present, there is a spectacular growth in this field. Recently, some bridged binuclear complexes have received much attention on account of their biological relevance and condensed-phase magnetic properties[5,6]. Especially, the complexes containin… 相似文献
6.
The title complex has been synthesized by using terephthalic acid (PTA), 1,10-phenanthroline (phen) and copper monohydrate. It crystallizes in monoclinic space group C2/c with a=2.959 0(2) nm, b=1.466 4(10) nm, c=1.764 3(12) nm, β=105.593(11)°, V=7.372(9)
nm3, Dc=1.489 g·cm-3, Z=8, F(000)=3 416, R1=0.043 6,
wR2= 0.151 9. The crystal structure shows that the copper atom is coordinated with four nitrogen atoms from two phens and one oxygen atom from one terephthalic acid, forming a distorted square-pyramid coordination geometry. The cyclic voltametric behavior of the complex is also reported. CCDC: 277047. 相似文献
7.
Jie-Hui Yu Ji-Qing Xu Ling Ye Hong Ding Jia-Ning Xu Hong-Bin Jia Tie-Gang Wang Zhong-Cheng Mu Guang-Di Yang 《Journal of Cluster Science》2003,14(1):1-8
The hydrothermal reactions of CuBr2, CuX (X=Br, I), and phen (phen=1,10-phenanthroline, C12H8N2) have lead to the syntheses of two novel complexes of one-dimensional [Cu4Br2I3(phen)2]
n
1 and trinuclear discrete cluster Cu3Br3(phen)2
2. Both compounds were characterized by singe-crystal X-ray diffraction. Crystal data for 1. Monoclinic, space group P2
1/c with a=14.054(3) Å, b=13.700(3) Å, c=15.920(3) Å, =114.16(3)°, Z=2; 2. Monoclinic, space group C2/c with a=10.040(2) Å, b=14.516(3) Å, c=16.319(3) Å, =94.29(3)°, Z=6. 相似文献
8.
Structure and Thermal Decomposition of Bis(triethanolamine)copper(II) Acetate [Cu{N(CH2CH2OH)3}2](CH3COO)2 Bis(triethanolamine)copper(II) acetate [Cu{N · (CH2CH2OH)3}2](CH3COO)2 was prepared using the basic components; the structure was determined by single crystal X-ray diffraction. The complex crystallizes in the monoclinic space group P21/c with a = 9.101 Å, b = 13.136 Å, c = 9.819 Å, β = 111.63°. Details of the synthesis, X-ray data, and the thermal decomposition are reported. 相似文献
9.
Synthesis and Spectroscopic Characterization of Copper(II) and Nickel(II) Tricyanomethanide Complexes with Imidazoles – Crystal Structure of [Cu{C(CN)3}2(2-meiz)2] The copper(II) and nickel(II) tricyanomethanide complexes with imidazoles of the type [Cu{C(CN)3}2L4], [L = 2- or 4-methylimidazole (meiz)] and [M{C(CN)3}2L2] [M = Cu, L = imidazole (iz), 2- or 4-meiz; M = Ni, L = iz, 2- or 4-meiz] were prepared and characterized by electronic, infrared, and – some of them – by ESR spectroscopy. The structure [Cu{C(CN)3}2(2-meiz)2], solved by X-ray crystallographic analysis, shows a two-dimensional network with unsymmetric C(CN)3-bridges between the CuII atoms. Polymeric structures with bridging C(CN)3-groups were identified by means of spectroscopic methods also for the other [M{C(CN)3}2L2] complexes. On the other hand, for the complexes [M{C(CN)3}2L4] follow molecular structures, in which monodentate C(CN)3 ligands are present. All compounds under investigation show a tetragonal-bipyramidal geometry with various degree of tetragonal distortion. 相似文献
10.
Molybdenum(II) Halide Clusters with six Alcoholate Ligands: (C18H36N2O6Na)2[Mo6Cl8(OCH3)6] · 6CH3OH and (C18H36N2O6Na)2[Mo6Cl8(OC6H5)6] . The reaction of Na2[Mo6Cl8(OCH3)6] and 2,2,2-crypt yields (C18H36N2O6Na)2[Mo6Cl8(OCH3)6] · 6 CH3OH ( 1 ), which is converted to (C18H36N2O6Na)2[Mo6Cl8(OC6H5)6] ( 2 ) by metathesis with phenol. According to single crystal structure determinations ( 1 : P3 1c, a=14.613(3) Å, c=21.036(8) Å; 2 : P3 1c, a=15.624(1) Å, c=19.671(2) Å) the compounds contain anionic clusters [Mo6Cl8i(ORa)6]2? ( 1 : d(Mo—Mo) 2.608(1) Å to 2.611(1) Å, d(Mo—Cl) 2.489(1) Å to 2.503(1) Å, d(Mo—O) 2.046(4) Å; 2 : d(Mo—Mo) 2.602(3) Å to 2.608(3) Å, d(Mo—Cl) 2.471(5) Å to 2.4992(5) Å, d(Mo—O) 2.091(14) Å). Electronic interactions of the halide cluster and the phenolate ligands in [Mo6Cl8(OC6H5)6]2? is investigated by means of UV/VIS spectroscopy and EHMO calculations. 相似文献
11.
Hydrothermal Synthesis and Electrochemical Properties of Complex Cu(CH3C6H4COOH)2(2,2''-bipy)·(H2O) 总被引:1,自引:0,他引:1
The title complex has been synthesized by 4-methylbenzoic acid and 2,2'-bipyridine (bipy) in the mixed solvent of water and methanol. It crystallizes in the triclinic system, space group (P1-) with a = 0.7047(3), b = 1.1217(5), c = 1.6718(7) nm, α = 103.826(7), β = 90.772(6), γ = 104.195(6)°, C26H25CuN2O5.50, Mr = 517.02, V = 1.2404(9) nm3, Dc = 1.384 g/cm3, Z = 2, F(000) = 536, μ(MoKα= 0.921 mm-1, R = 0.0782 and wR = 0.2172. Structural analysis shows that the copper atom is coordinated with three oxygen atoms from two 4-methylbenzoic acids and one water molecule together with two nitrogen atoms from 2,2'-bipyridine, giving a distorted square-pyramid coordination geometry. The cyclic voltametric behavior of the complex has also been described. 相似文献
12.
A new copper(II) coordination polymer, [Cu(PIA)·2H2O]n (1) [H2PIA = 5-(pyridin-4-yl)isophthalic acid], has been synthesized and characterized by elemental analysis, IR spectroscopy, TGA, powder, and single-crystal X-ray diffraction. Structural analysis shows that each PIA2? in 1 bridges three Cu(II) ions, and likewise each Cu(II) ion connects to three PIA2? ligands, giving a 3-D framework with utp topology and left-/right-handed helical channels. Interestingly, two such identical frameworks interlock with each other to generate a twofold interpenetrated structure that is stabilized by hydrogen bonding and π–π interactions. In addition, the thermal stability and the magnetic properties of 1 have been investigated. 相似文献
13.
《Journal of Coordination Chemistry》2012,65(3):455-463
The ligand, N,N′-bis-(4-methoxy-benzylidene)-ethane-1,2-diamine (mb2en), and its corresponding copper(I) complexes, [Cu(mb2en)2]ClO4 (1), and [Cu(mb2en)(PPh3)2]BPh4 (2), have been synthesized and characterized by CHN analyses, 1H and 13C-NMR, IR, and UV-Vis spectroscopies. The crystal and molecular structure of [Cu(mb2en)2]ClO4 (1), were determined by X-ray crystallography from a single-crystal. The coordination polyhedron about copper(I) is best described as a distorted tetrahedron. Quasi-irreversible redox behavior was observed for 1 and 2 (E 1/2?=?0.55 and 0.95?V, respectively). 相似文献
14.
近年来,利用晶体工程方法设计裁剪和组装具有一维、二维、三维框架结构的固体化合物材料已成为材料科学和化学学科中最活跃的研究领域之一。研究表明在这些框架内镶嵌活性组分可得到新型功能材料,如磁性材料、非线性光学材料及新型催化剂等[1]。而叠氮根是一个多功能桥联配体,它能形成一维[2],二维[3],三维[4]等配合物,有关叠氮根的磁性研究也成为分子基铁磁体研究的一个重要方面[5]。本文报道了[Cu(AFO)2(N3)2](DMF)(H2O)(DMF=N,N 二甲基甲酰胺)配合物的合成和晶体结构,并进行了元素分析和红外光谱表征。1 实验部分1 1 试剂与… 相似文献
15.
《Journal of Coordination Chemistry》2012,65(6):455-461
Reaction of the ligand 3-(pyridin-2-yl)pyrazole (L) with Cu(ClO4)2 and CuX2 (X=Cl, Br, I) gives complexes with stoichiometry [Cu(L)2X]ClO4 (X = Cl, Br, I). The new complexes were characterized by elemental analyses and infrared and electronic spectroscopy. The crystal structure of the [Cu(L)2Br]ClO4 was determined by X-ray crystallography. The cation complex (i.e. [Cu(L)2Br]P) contains copper(II) with a distorted trigonal bipyramid geometry with a Br― ligand occupying an equatorial site. The penta-coordinated metal atom is bonded to two pyridinic nitrogens, two pyrazolic nitrogens, and one bromide anion. The pyrazolic H atoms are hydrogen bonded to Br atoms, resulting in infinite hydrogen-bonded chains running in the b direction. There are π‐π stacking interactions (charge-transfer arrays) between the parallel aromatic rings belonging to adjacent chains that may help to form hydrogen bonding in the coordination geometry around Cu (II). 相似文献
16.
Molybdenum(II) Halide Clusters with two Alcoholate Ligands: Syntheses and Crystal Structures of (C18H36N2O6Na)2[Mo6Cl12(OCH3)2] and (C18H36N2O6Na)2[Mo6Cl12(OC15H11)2] · 2C4H6O3 . Reaction of Mo6Cl12 with two equivalents of sodium methoxide in the presence of 2,2,2-crypt yields (C18H36N2O6Na)2[Mo6Cl12(OCH3)2] ( 1 ), which can be converted to (C18H36N2O6Na)2[Mo6Cl12(OC15H11)2] · 2C4H6O3 ( 2 ) by metathesis with 9-Anthracenemethanole in propylene carbonate. As confirmed by X-ray single crystal structure determination ( 1 : C2/m, a=25.513(8) Å, b=13.001(3) Å, c=10.128(3) Å, β=100.204(12)°; : C2/c, a=15.580(5) Å, b=22.337(5) Å, c=27.143(8) Å, β=98.756(10)°) the compounds contain anionic cluster units [Mo6ClCl(ORa)2]2? with two alcoholate ligands in terminal trans positions ( 1 : d(Mo—Mo) 2.597(2) Å to 2.610(2) Å, d(Mo—Cli) 2.471(3) Å to 2.493(4) Å, d(Mo—Cla) 2.417(8) Å and 2.427(8) Å, d(Mo—O) 2.006(13) Å; 2 : d(Mo—Mo) 2.599(3) Å to 2.628(3), d(Mo—Cli) 2.468(8) Å to 2.506(7) Å, d(Mo—Cla) 2.444(8) Å and 2.445(7) Å, d(Mo—O) 2.012(19) Å). 相似文献
17.
Bramsen F Bond AD McKenzie CJ Hazell RG Moubaraki B Murray KS 《Chemistry (Weinheim an der Bergstrasse, Germany)》2005,11(3):825-831
The reaction of Cu(ClO4)2.6-H2O and n-propylamine in methanol gives two high-nuclearity products of well-defined compositions. At amine concentrations greater than seven equivalents compared to copper ion concentration, the system fixes carbon dioxide from air to form the one-dimensional carbamate-bridged coordination polymer, {[Cu(mu2-O,O'-O2CNH(CH2)2CH3)(NH2(CH2)2CH3)3](ClO4)}n ({1-ClO4}n). Lower relative amine concentrations lead to the self-assembly of an octanuclear copper-amine-hydroxide cluster [Cu8(OH)10(NH2(CH2)2CH3)12]6+ (2). Both compounds exhibit unique structures: {1-ClO4}n is the first mu2-O,O'-mono-N-alkylcarbamate-linked coordination polymer and 2 is the largest copper-hydroxide-monodentate amine cluster identified to date. The crystal structures indicate that the size of the n-propyl group is probably crucial for directing the formation of these compounds. Magnetic susceptibility studies indicate very weak antiferromagnetic coupling for 1. The octanuclear cluster 2 displays slightly stronger net antiferromagnetic coupling, despite the presence of a number of Cu-O(H)-Cu angles below the value of about 97 degrees that would normally be expected to yield ferromagnetic coupling. 相似文献
18.
Robin D. Rogers Lynn K. Kurihara Matthew M. Benning 《Journal of inclusion phenomena and macrocyclic chemistry》1987,5(5):645-658
The reaction of UO2(ClO4)·nH2O with 15-crown-5 and 18-crown-6 in acetonitrile yielded the title complexes. [UO2(OH2)5] [ClO4]2·3(15-crown-5)·CH3CN crystallizes in the triclinic space groupPT with (at–150°C)a=8.288(6),b=12.874(7),c=24.678(7) Å, =82.62(4), =76.06(5), =81.06(5)°, andD
calc=1.67 g cm–3 forZ=2 formula units. Least-squares refinement using 6248 independent observed reflections [F
o5(F
o)] led toR=0.111. [UO2(OH2)5] [ClO4]2·2(18-crown-6)·2CH3CN·H2O is orthorhombicP212121 with (at–150 °C)a=12.280(2),b=17.311(7),c=22.056(3) Å,D
calc=1.68 g cm–3,Z=4, andR=0.032 (3777 observed reflections). In each complex the crown ether molecules are hydrogen bonded to the water molecules of the pentagonal bipyramidal [UO2(OH2)5]2+ ions, each crown ether having exclusive use of two hydrogen atoms from one water molecule and one hydrogen from another water molecule. In the 15-crown-5 complex the remaining hydrogen bonding interaction is between one of the water molecules and one of the perchlorate anions. The solvent molecule has a close contact between the methyl group and a perchlorate anion suggesting a weak interaction. There are a total of three U-OH...OClO3 hydrogen bonds to the two perchlorate anions in [UO2(OH2)5] [ClO4]2·(18-crown-6)·2CH3CN ·H2O. The remaining coordinated water hydrogen bond is to the uncoordinated 2H2O molecule, which in turn is hydrogen bonded to a perchlorate oxygen atom and an acetonitrile nitrogen atom. One solvent methyl group interacts with an anion, the other with one of the 18-crown-6 molecules. Unlike the 15-crown-5 structure, the hydrogen bonding in this complex results in a polymeric network with formula units joined by hydrogen bonds from one of the solvent molecules and the uncoordinated water molecule.
Supplementary data relating to this article are deposited with the British Library as Supplementary Publication No. SUP 82051 (37 pages).For Part 10, see reference [1]. 相似文献
19.
Synthesis and Crystal Structure of Cu4[PhN3C6H4N3(H)Ph]4(μ2-O)2, a Tetranuclear Copper(II) Complex with 1-Phenyltriazenido-2-phenyltriazeno-benzene as Ligand Cu4[PhN3C6H4N3(H)Ph]4(μ-O)2 ( 1 ) results from the reaction of an aqueous solution of [Cu(NH3)4]2+ with 1,2-bis(phenyltriazeno)benzene in ether. 1 crystallizes in the orthorhombic space group Pba2 with the lattice parameters a = 1661.5(5), b = 1914.7(7), c = 1269.2(5) pm; Z = 2. In the tetrameric complex with the symmetry C2 the Cu2+ cations form a tetrahedron (Cu? Cu: 298.3(1)?337.1(1) pm). The μ2-oxo ligands occupy the twofold axis and bridge two opposite edges of the Cu4 tetrahedron (Cu? O: 190.0(3) and 192.5(4) pm). The 1-phenyltriazenido-2-phenyltriazeno benzene anions bridge two Cu2+ ions chelating one metal ion and coordinating monodentate the neighbouring one (Cu? N: 191.0(5)–204.1(4) pm). 相似文献
20.
1 INTRODUCTION There has been increasing interest of Cu(II) and phenanthroline complexes in the field of coor- dination chemistry[1~4]. At the same time, nitronyl nitroxide radicals have played a prominent role in the design and construction of molecula… 相似文献