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1.
1 INTRODUCTION Benzoic acids with substituent of amino are a class of rigid ligands possessing several functional groups. When they coordinate to metal ions, versa- tile coordination modes will be presented with pre- sence of not only coordinate-covalent bonds but also hydrogen bonds. Besides, diverse coordination modes of carboxyl and rigid frame of benzene ring gua- rantee the stability of multi-dimensional structures of the synthesized metal complexes. Thus ligands of this class are o… 相似文献
2.
Two new one-dimensional coordination polymers,[Zn(L)(phen)]n 1 and {[Co2(L)2(phen)2]·2H2O}n 2(H2L=5-methoxyisophthalic acid,phen=1,10-phenanthroline),have been obtained by hydrothermal conditions.According to their single-crystal X-ray diffraction analyses,complex 1 crystallizes in the monoclinic system,space group P2/c with a=8.9195(11),b=12.3620(15),c=17.0211(18),β=106.690(5)o,V=1797.7(4)3,the final R=0.0298 and wR=0.0715 for 3351 independent reflections with Rint=0.0353.Complex 2 crystallizes in the monoclinic system,space group C2/c with a=24.981(4),b=11.1204(19),c=18.125(3),β=132.5620(10)o,V=3708.5(11)3,the final R=0.0349 and wR=0.0914 for 3424 independent reflections with Rint=0.0214.Both 1 and 2 show L-bridged one-dimensional chain.1 and 2 are further assembled by π-π and hydrogen bonding interactions into 2-D layer structures,and they also display 3-D supramolecular frameworks through their other hydrogen bonds.Zn(Ⅱ) ion is five-coordinated with a distorted trigonal bipyramidal coordination geometry,while Co(Ⅱ) ion is six-coordinated and resides in a distorted octahedral coordination geometry.Additionally,complex 1 shows fluorescence in the solid state at room temperature. 相似文献
3.
The Co(II) complex I and ammonium salt II were synthesized from the direct reaction of 1,2-ethylenediamine and cobaltous acetate tetrahydrate and manganese acetate tetrahydrate in anhydrous ethanol. Treatment of N,N'-bis(salicylidene)ethylenediamine with Cu(OAc)2·H2O results in the formation of Cu(II) complex III. C14H37CoNaO8 (I): triclinic, space group P1, a = 8.6296(12), b = 12.0291(17), c = 12.1108(17) A, α = 75.335(2), β = 69.991(2), γ = 72.248(2)°, V= 1109.4(3) A3, Z = 2, ρcaloa = 1.342 g/cm3, the final R= 0.0342 for 4817 observed reflections with I 〉 2σ(I) and Rw = 0.1263 for all data. C6H16N204 (II): space group P1, a = 5.5513(10), b = 5.5589(11), c = 7.4437(14) A, α = 94.332(4), β = 104.497(4), γ = 103.487(4)°,V= 214.06(7) A3, Z = 1, ρcalcd = 1.398 g/cm3, the final R = 0.0431 for 829 observed reflections with I〉 2σ(I) and Rw = 0.1263 for all data. C14H37CuN40 (III), space group P21/n, a = 9.050(9), b = 18.434(17), c = 11.659(11) A, β = 107.134(19)°, V= 1859(3) A3, Z = 4, ρcalcd =1.443 g/cm3, the final R = 0.0616 for 3308 observed reflections (O 〉 2σ(I)) and Rw = 0.1229 for all data. Their structures were all determined by X-ray diffraction, elemental analysis and IR. 相似文献
4.
A new metal-organic complex Zn2(cbba)4(phen)2 (Hcbba = 2-(4'chlorine-ben- zoyl)benzoic acid, phen = 1,10-phenanthroline) 1 has been hydrothermally synthesized and structurally characterized by elementa... 相似文献
5.
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. 相似文献
6.
A new ternary copper(II) complex,[C 43 H 27 Cu 2 N 7 O 5 ]·[C 14 H 6 CuN 2 O 8 ]·6.5H 2 O,has been synthesized by the reaction of copper sulfate,2,6-pyridinedicarboxylic acid and 1,10-phenanthroline (phen),and characterized by elemental analysis,IR,UV and X-ray single-crystal diffraction.It crystallizes in triclinic,space group P1,with a=14.379(5),b=15.510(5),c=15.835(6),α=78.567(6),β=63.594(6),γ=81.287(6)°,V=3092.1(19)3,C 57 H 46 Cu 3 N 9 O 19.5,M r=1359.54,Z=2,D c=1.446 Mg/m 3,λ(MoKα)=0.71073,μ=1.101 mm-1,F(000)=1362,S=1.071,the final R=0.0718 and wR=0.11960 for 10705 observer reflections (I > 2σ(I)).The structure unit of the title complex consists of a mononuclear part and a di-nuclear part,and the three copper ions show three coordination modes.Each 6-coordinated geometry of the Cu atom is a distorted octahedral coordination geometry.The 3D supramolecular system is formed by the hydrogen bond O-H···O and π-π stacking interaction between neighboring single cells.The antibacterial activity of the title complex is also studied. 相似文献
7.
Three palladium (II) complexes with the isonitrosobenzoylacetoneimine (HIBI) ligand, Pd (p‐CH3C6H4IBI)2 (1), Pd (C6H5IBI)2 (2) and Pd2Cl2 (C6H5CH2IBI)2 · CHCl3 (3), were prepared and characterized by IR, Raman and X‐ray diffraction studies. The geometries around the palladium atoms in the complexes 1 and 2 are distorted trans‐PdN4 square planes, and the Schiff base ligands RIBI? are coordinated through their oximo‐nitrogen atoms and imino‐nitrogen atoms. The week Pd…H? C agostic interactions [Pd…H = 0.2764 nm] complete the hexacoordinate environment around palladium in the complex 1. The octahedral deformation of the classical square planar environment of the Pd atom is due to the week Pd…O (1b) interactions [Pd? O (1b) = 0.3157 (9) nm] in the complex 2. The complex 3 is a first example of binuclear complex with isonitrosoketoimine ligands, in which one of oximo groups is coordinated through oximo‐nitrogen and oximo‐oxygen atoms. 相似文献
8.
A new metal-organic complex Co2(cbba)4(phen)2(μ2-OH2)(H2cbba=2-(4'-chlorine-benzoyl)benzoic acid,phen=1,10-phenanthroline) 1 has been hydrothermally synthesized and struc-turally characterized by single-crystal X-ray diffraction,elemental analyses,TG and IR spectroscopy.The compound crystallizes in triclinic,space group P1 with a=10.7659(7),b=17.1856(11),c=19.2022(13),α=83.8120(10),β=84.9930(10),γ=87.2070(10)°,V=3515.8(4)3,C80H50Cl4Co2N4O13,Mr=1534.90,Dc=1.450 g/cm3,μ(MoKα)=0.693 mm-1,F(000)=1568,Z=2,the final R=0.0490 and wR=0.1092 for 8216 observed reflections(Ⅰ > 2σ(Ⅰ)).In the crystal structure,the cobalt atom is six-coordinated with three carboxylate oxygen atoms from three different cbba ligands,one oxygen atom from coordinated water molecule and two nitrogen atoms from phen ligand,showing a distorted octahedral geometry.Furthermore,it exhibits a 3D supramolecular network through π-π and hydrogen bonding interactions. 相似文献
9.
Two new coordination polymers,{[Co(O2N-Hbtb)(phen)(H2O)3]·2H2O}n 1 and {[Cu3(O2N-btb)2(bipy)2(H2O)4]·4H2O}n 2(O2N-H3btb=5-nitro-1,2,3-benzenetricarboxylic acid,phen=1,10-phenanthroline,bipy=2,2'-bipyridine),were prepared through hydrothermal reactions of Co(Ⅱ) or Cu(Ⅱ) salt with O2N-H3btb in the presence of different auxiliary N-donor ligands.Their crystal structures were determined by single-crystal X-ray diffraction analysis and further characterized by elemental analysis and IR spectroscopy.In the two complexes,O2N-H3btb ligand acts as monodentate and bis-monodentate modes,respectively.Complex 1 displays a two-dimensional layered structure through the inter-and intramolecular hydrogen bonding interactions while complex 2 has an O2N-btb bridged one-dimensional chain which is extended into a three-dimensional network by hydrogen bonding interactions.The magnetic properties of complex 2 are investigated over the temperature range of 2~300 K and ferromagnetic interactions are observed. 相似文献
10.
Three Cd(II) coordination complexes,{[Cd(bime)3](NO3)2·(H2O)3}n(1),[Cd(bime)Br2]n(2) and [(H2bime)(CdBr4)(H2O)]n(3)(bime = 1,2-bis(imidazol-1-yl)ethane),have been prepared and characterized.Single-crystal X-ray diffraction analysis reveals that 1~3 crystallize in the trigonal space group P-3,monoclinic space group C2/c and triclinic space group P1,respectively.In 1,bime bridges six-coordinated Cd(II) to generate a two-fold interpenetrating 3D coordination polymer,in which NO3- is not involved in coordination,but serves as a void filler to balance the charge of the 3D framework.The six NO3- and six uncoordinated water molecules form an unprecedented 24-membered macrocycle through hydrogen bonding interaction.In 2,bime in an anti-conformation links the CdBr2 units into a zigzag chain.In 3,bime does not take part in coordination,but is protonated to act as a counter cation of [CdBr4 ]2-.The hydrogen bonds between H2bime and [CdBr4]2- result in the formation of a supramolecular chain. 相似文献
11.
Two new Ni( Ⅱ) coordination polymers, {[Ni(tbip)(bipy)(H2O)]-0.5H2O}n 1 and [Ni(tbip)(phen)(H2O)]n 2 (Hatbip = 5-tert-butyl isophthalic acid, bipy = 2,2'-bipyridine, phen = 1,10-phenanthroline), have been synthesized under hydrothermal conditions and characterized by elemental analysis, X-ray diffraction, and IR spectroscopy. In the two polymers, H2tbip acts as a tridentate ligand. Compound 1 has a tbip bridged 1-D linear chain which is extended by hydrogen bonds into a 1-D double chain, while compound 2 exhibits a 1-D zigzag chain. 相似文献
12.
FANRui-qing ZHUDong-sheng MUYing LIGuang-hua SUQing NIJian-guo FENGShou-hua 《高等学校化学研究》2005,21(4):496-500
In the past decade, the imino-complexes based on late transition metal have received significantly increasing attention for their excellent performance in the olefin polymerization area since Brookhart et al. demonstrated that the Ni( Ⅱ ) complexes incorporating with sterically hindered α-diimine ligands could be used in the polymerization of ethylene to form high molecular weight polymers. 相似文献
13.
14.
The compound [Cu2(bpy)2(PDIAla)(H2O)2](ClO4)2·H2O(H2PDIAla = N,N'-(p-xylylene)dialanine,bipy = 2,2'-bipyridine) 1 has been synthesized and structurally determined by single-crystal X-ray diffraction,elemental analyses and IR spectroscopy.The crystal belongs to the monoclinic system,space group P21 with a = 10.9772(6),b = 18.5464(9),c = 11.0790(6) ,β = 116.3110o,V = 2021.87(18) 3,Z = 2,Dc = 1.594 Mg/m3,Mr = 970.70,μ = 1.260 mm-1,F(000) = 996,λ(MoKα) = 0.71073 ,the final R = 0.0400 and wR = 0.1050 for all observed reflections.In the structure,the O(5)-H(52)···O(4) hydrogen bonding between aqua ligand and carbonyl oxygen of the H2PDIAla ligand along the c axis produce hydrogen-bonded helices which are assembled along the b axis through O(61)-H(61)···O(2) and N(6)-H(6N)···O(2) interactions to form 2-D layers that are further linked by π···π interactions between bpy ligands to yield a three-dimensional supramolecular network. 相似文献
15.
HANG Kai ZHAO Bao-Li WANG Li-Ya WANG Yu-Fang 《结构化学》2007,26(7):860-866
A new compound (NIT-mNO2 = 4,4,5,5-tetramethylimidazoline-2-yl-(2'-chlor-5'- nitrophenyl)-3-oxide-l-oxyl) 1 and its complex (Cu(NIT-mNO2)(hfac)2) 2 have been synthesized and structurally and magnetically characterized. Complex 1 crystallizes in monoclinic, space group P211n with a = 10.6798(9), b = 11.2705(9), c = 12.9559(10)A, β = 107.3770(10)°, V = 1488.3(2) A^3, C13H15ClN3O4, Mr = 312.73, Z = 4, Dc = 1.396 g/cm^3, g(MoKa) = 0.276 mm^-1, F(000) = 652, the final R = 0.0606 and wR = 0.1773 for 3405 independent reflections with Rint = 0.0203. The nitronyl nitroxide unit (imidazoline ring) is not coplanar with the phenyl ring with the dihedral angle between them of 55.75°. The compound results in a 1-D zig-zag chain structure by intermolecular H-bond interaction. Compound 2 crystallizes in triclinic, space group Pi with a = 10.3699(10), b = 10.6286(11), c = 15.1683(15)A, a = 77.5330(10), ,β = 773080(10), y = 87.3420(10)*, V = 1592.5(3) A^3, C23HITCIFI2N3O8Cu, Mr = 790.39, Z = 2, Dc = 1.648 g/cm^3, μ(MoKa) = 0.888 mm^-1, F(000) = 788, the final R = 0.0793 and wR = 0.2153 for 5794 independent reflections with Rint = 0.0196. The Cu(Ⅱ) ion is located at a center of symmetry, and each Cu(Ⅱ) is surrounded by six oxygen atoms at the vertices of a distorted tetragonal octahedron. Four of the six oxygen atoms belong to two hfac ligands and occupy the equatorial coordination sites, while the other two of NIT-mNO2 act as μ-1,5 bridge between the Cu(Ⅱ) ion, thus forming a 1-D chain structure. The magnetic susceptibility data indicate intermolecular antiferromagnetic interactions between compound 1 and intrachain ferromagnetic behaviors. 相似文献
16.
ZHOUXiao-hua LEXue-yi LONGLa-sheng CHENShi 《高等学校化学研究》2005,21(1):119-122
It is important to research the mixed-ligand copper complexes containing bioligands, such as amino acids, nucleic acids and proteins, in exploring the functional mechanism of microelement copper in organism because the reaction of any micronutrient with two or more bioligands in the concentrated bioligands background gives mixed-ligand ternary complexes, which are more stable and related with storage of substance and transportationof metal ions in the life process. 相似文献
17.
Deng Hong Cai Yue‐Peng Chao Hui Chen Chun‐Long Jiang Cai‐Wu Ji Liang‐Nian Chen Chao‐Qiu 《中国化学》2003,21(4):409-414
Three new lanthanide phenoxyacetate complexes with 1,10‐phenanthroline. [Nd(POA)3 (phen)]2 · 2C2H5OH (1), [Eu(POA)3‐ (phen)]2 · 2C2H5OH (2) and [Sm(POA)2(DMSO)(phen)]2‐ (ClO4)2 (3) (POA= phenoxyacetate, phen = 1,10‐phenanthroline, DMSO = dimethyl sulfoxide), were synthesized and characterized by elemental analyses, IR, UV‐vis and FAB‐MS spectra. Their structures were determined by single crystal X‐ray diffraction analysis. In complexes 1 and 2, the carboxylate groups are bonded to Ln3+ ion in three modes: the chelating bidentate, the bridging bidentate and the bridging tridentate. In complex 3, the carboxylate groups are bonded to Sm3+ ion only involved in one mode: the bridging bidentate. The luminescence behavior of complex 2 was also studied by means of emission spectra. 相似文献
18.
FANRui-qing ZHUDong-sheng MUYing SUQing 《高等学校化学研究》2004,20(6):801-803
Luminescent coordination compounds with nitrogen-containing ligands have attracted much attention due to their good performance in sensor and electroluminescent device techniques, To develop new luminescent materials, a large number of d^10 metal complexes, especially zinc complexes, with the nitrogen-containing ligands have been synthesized and their luminescence behaviour have 相似文献
19.
A new compound,[Zn(L)(1,4-chdc)]2·2H2O(1,1,4-chdc = 1,4-cyclohexanedicarboxylate and L = 11-fluoro-dipyrido[3,2-a:2,3-c]phenazine),has been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction.The crystal of 1 belongs to triclinic,space group P1 with a = 9.4679(19),b = 10.915(2),c = 12.577(3) ,α = 77.22(3),β = 74.73(3),γ = 65.47(3)°,C52H39F2N8O10Zn2,Mr = 1104.65,V = 1131.4(4) 3,Z = 1,Dc = 1.621 g/cm3,S = 1.091,μ(MoKα) = 1.143 mm–1,F(000) = 565,R = 0.0426 and wR = 0.1171.In 1,two 1,4-chdc anions bridge two Zn(Ⅱ) atoms to form a dimer.The neighboring dimers are further extended by π-π stacking interactions to form a 2D supramolecular layer.The luminescent property of the compound has also been investigated. 相似文献
20.
《中国化学快报》2006,17(2):243-246
Schiff base ligand (HL) derived from 4-hexylaniline with isatin (1H-indole-2,3-dione) and its complexes with Cu(Ⅱ), Ni(Ⅱ) were prepared and characterized by analytical, spectroscopic (IR, UV-Vis, Mass) techniques, electrical conductivity, magnetic and thermal measurements. The crystal and molecular structure of [Cu(HL)2Cl2] was determined by a single-crystal X-ray diffraction study. The molecular structure of the title compound has an inversion center on the Cu atom. 相似文献