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1.
A novel oxovanadium(IV) complex with tridentate schiff base and bidentate phenanthroline ligands, VO(o-van)(phen) 2H2O[o-van-gly: o-vanillin-glycine; phen: phenanthroline], was synthesized and characterized by elemental analysis, IR and UV-vis spectra. The crystal structure was determined by X-ray single crystal diffraction analysis. The crystal of title complex (C22H21N3O7V, Mw = 490.36) belongs to triclinic, space group P-1 with the following crystallographic parameters: a = 9.247(3) Å, b = 10.125(4) Å, c = 13.100(5) Å, = 106.343(6), = 96.042(7), = 101.726(7), V = 1135.0(7) Å3, Z = 2, Dc = 1.435 Mg m–3, (MoK = 0.485 mm–1, F(000) = 506, and final R1 = 0.0779, wR2 = 0.1598 for observed reflections 1606 (I > 2(I)). V(IV) is six-coordinate with three oxygen atoms and three nitrogen atoms in a distorted octahedral geometry. The complex forms a 3-D network via – stacking and hydrogen bonds. 相似文献
2.
The crystals of catena-dichloro-(dihydrogen pyrazine-2,6-dicarboxylato-O,O′,N,-N′) copper(II) dihydrate Cu[H2(2,6-PZDC)]Cl2?2H2O are monclinic, space group C2/c with a = 11.658(2) Å, b = 6.778(1) Å, c = 16.390(3) Å, β = 98.90(3)°, and Z = 4. Two adjacent copper(II) ions are bridged by a fully protonated pyrazine-2,6-dicarboxylic acid molecule which uses for bridging its O,O′,N-bonding moiety on one side and a single hetero-ring nitrogen atom on the other. Two chloride ions in axial position complete the octahedral coordination around the metal ions with bond distances: Cu–N 2.027(3) ÅA, Cu–N′ 2.005(3) ÅA, Cu–Cl. 2.281(1) ÅA, and Cu–O 2.446(2) ÅA. Copper(II) ions are located in the center of symmetry and are coplanar with the ligand acid molecule forming flat molecular chains propagating in the direction of the b axis. Hydrogen bonds via solvation water molecule link the chains into molecular layers parallel to the ac plane. Weak van der Waals type interactions operate between the layers. 相似文献
3.
Angela C. Raimondi Peter B. Hitchcock G. Jeffery Leigh Fábio S. Nunes 《Journal of chemical crystallography》2004,34(2):83-87
The crystal structure of the binuclear tetraiminediphenolate diiron(II) macrocyclic complex [Fe2(tidf)(CH3OH)4](ClO4)2 (tidf = tetraiminediphenolate ligand) is presented. The molecular structure (monoclinic, space group C2/c, Z = 4, a = 20.6903(14)Å, b = 11.0827(11) Å, c = 16.0494(15) Å, = 99.911(6) shows two iron(II) cores occupying distorted octahedral geometries with four methanol molecules bound axially. Main equatorial bond distances are 2.050(3) Å for Fe—O1 and 2.067(4) Å for Fe—N1 with a Fe Fe distance of 3.108(1) Å. Contrasting to the monoiron complex the macrocycle does not adopt a bent conformation being nearly coplanar with the maximum deviation from the least-squares plane of 0.18 Å. 相似文献
4.
Liang-Fu Tang Zhi-Hong Wang Jian-Fang Chai Ji-Tao Wang 《Journal of chemical crystallography》2002,32(8):261-265
A new chromium(III) complex, [Cr(ox)(bdmpza)(H2O)], (ox = oxalate dianion and bdmpza = bis(3,5-dimethylpyrazol-1-yl)acetate, respectively), has been synthesized and characterized by X-ray crystallography. This compound crystallizes in the monoclinic space group P21/c, with a = 7.008(3) Å, b = 14.229(5) Å, c = 16.497(7) Å, = 101.588(7)°, V = 1611.5(11) Å3, Z = 4. The chromium atom has a distorted octahedral environment with different coordination atoms. Bis(3,5-dimethylpyrazol-1-yl)acetate anion is a tridentate ligand, and the oxalate group acts as a chelating bidentate ligand. This compound also forms an infinite two-dimensional network through O–H O hydrogen bonds. The lengths of the hydrogen bonds are 2.765(5) and 2.733(5) Å, respectively. 相似文献
5.
Licun Li Daizheng Liao Zonghui Jiang Shiping Yan 《Journal of chemical crystallography》2002,32(8):251-254
A new complex of formula [Ni(im2-py)2(SCN)2]CH3OH (im2-py = 2-(2-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl) has been synthesized and the crystal structure determined by X-ray diffraction methods. The complex crystallizes in the monoclinic space group P21/n with a = 15.525(5) Å, b = 13.405(4) Å, c = 16.167(5) Å, = 113.324(5)°, V = 3089.6(16) Å3, and Z = 4. The structure of this complex is mononuclear with the nickel(II) ion octahedrally coordinated and bound to the imino nitroxide radicals through the imino nitrogen atoms. The thiocyanate groups are coordinated to the metal by the nitrogen atoms. 相似文献
6.
Gang Wu Yan Wang Xiao-Feng Wang Hiroyuki Kawaguchi Wei-Yin Sun 《Journal of chemical crystallography》2007,37(3):199-205
Two complexes (H2bipy)[M2(TB)2(H2O)8]·5H2O (M = Mn 1, Zn 2) (bipy = 4,4′-bipyridine, H3TB = 1,3,5-tris(carboxymethoxyl)benzene) were synthesized by the reaction of the corresponding metal salt with ligand H3TB and 4,4′-bipy in an aqueous methanol solution at room temperature, respectively. Their structures were determined by single
crystal X-ray diffraction analysis. Both complexes 1 and 2 crystallize in the triclinic space group with the crystal parameters of 1: a = 9.725(12) ?, b = 10.651(13) ?, c = 10.882(13) ?, α = 91.72(2)°, β = 96.41(2)°, γ = 97.72(2)°, V = 1109(2) ?3, Z = 1 and 2: a = 9.610(10) ?, b = 10.55(2) ?, c = 10.83(2) ?, α = 91.60(4)°, β = 95.32(2)°, γ = 97.73(4)°, V = 1082(3) ?3, Z = 1. Complexes 1 and 2 have the same dinuclear structure, in which each metal atom is six coordinated with distorted octahedral geometry by two
oxygen atoms from two different TB3− ligands and four ones from four coordinated water molecules. The dinuclear units are further linked by hydrogen bonding and
π–π interactions to form the three-dimensional framework structure. 相似文献
7.
Tao Zheng Ai–Jing Sun Yan–Hong Guo De–Yan Bu Zhi–Rong Qu 《Molecular Crystals and Liquid Crystals》2018,666(1):94-99
The complex of [Ag2(μ–L)2(μ–NO3)2]n, where L?=?2–methyl–5–(2–pyridyl)–1,3,4–oxadiazole, has been synthesized and characterized by single–crystal X–ray diffraction analysis. The crystals are in triclinic system with space group P–1. Complex [Ag2(μ–L)2(μ–NO3)2]n is a polymeric silver(I) complex bridged through the 1,3,4–oxadiazole rings and the nitrate ions, and the center Ag1(I) atoms have distorted trigonal bipyramidal geometries [AgN3O2]. 相似文献
8.
The title copper(II) complex [Cu2(C4H2O4)2(phen)2]⋅4H2O (phen = 1,10-phenanthroline) was prepared and its crystal structure was determined by X-ray diffraction method. The crystal belongs to space group C2/c with cell of a = 18.136(5), b = 12.505(5), and c = 14.617(5) Å, β = 103.440(5)∘ and Z = 4. The Cu(II) atom assumes a square pyramidal coordination geometry with a longer Cu–O3 coordination distance [2.308(3) Å] in the apical direction. The carboxyl O3 atoms from two maleate dianion bridges two Cu(II) atoms to form the binuclear complex with a shorter Cu⋅sCu separation of 3.349(1) Å. The separations of 3.39(1) and 3.41(1) Å between parallel phen rings indicate the existence of aromatic stacking. 相似文献
9.
Many explorations of transition metal (M)‐L system under solvothermal condition, have led to the syntheses of two new 4‐heterocyclic acylpyrazolone complexes [Co(L)2(CH3OH)2] (HL = 1‐phenyl‐3‐methyl‐4‐(2‐furoyl)‐5‐pyrazolone) ( 1 ) and [Cr(L)3] ( 2 ). Single‐crystal X‐ray analyses reveal that crystal structures of compound 1 and 2 are respectively orthorhombic, Pbca, a = 15.0378(6) Å, b = 9.8405(4) Å, c = 20.7321(8) Å, V = 3067.9(2) Å3, Z = 8 and triclinic, P‐1, a = 10.7966(18) Å, b = 13.023(2) Å, c = 15.520(3) Å, α = 73.011(4)°, β = 84.884(4)°, γ = 70.267(4)°, V = 1964.3(6) Å3, Z = 2. Complex 1 has a two‐dimensional (2D) network structure that is formed by O–H···N H‐bonding interactions. Complex 2 makes a one‐dimensional (1D) zigzag chain structure by intermolecular π···π interactions, which is further interlinked via C–H···N H‐bonding interactions to generate a 2D sheet, and then a three‐dimensional (3D) supramolecular network structure is further linked by intermolecular C–H···π interactions. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
10.
Synthesis, crystal and molecular structure of [Dy(H3L)(NO3)(H2O)](ClO4)2 H2O are reported. The complex crystallizes in the orthorhombic system, space group Pbca with lattice parameters a = 16.8036(3) Å, b = 20.9756(3) Å, c = 25.1113(4) Å, and D
calc = 1.797 Mg m–3 for Z = 8. The coordination number of dysprosium(III) is 9, and its coordination geometry is a distorted monocapped square antiprisms. In the cryptate, a water molecule acts as a guest molecule encapsulated in the cryptate. 相似文献
11.
Guang Yang 《Journal of chemical crystallography》2004,34(4):269-274
The synthesis of a cobalt(II) complex of tris(1-pyrazolylmethyl)amine (amtp) is reported. The complex [Co(amtp)Cl](BPh4) crystallizes in the space group P-1, with a = 8.979(2), b = 19.329(3), c = 20.251(3) Å, = 93.321(2), = 93.685(3), = 98.930(2)°, and Z = 4. The Co(II) atom is nearly tetrahedrally coordinated by three pyrazole N-atoms and one Cl–. The tertiary amine N-atom of amtp is only weakly coordinated to Co(II) atom at a Co—N(amine) distance of ca 2.40 Å. 相似文献
12.
Weimin Qin Fei Cao Zhenjiang Li Hua Zhou Honggui Wan Ping Wei Yuhu Shi Pingkai Ouyang 《Journal of chemical crystallography》2006,36(1):61-65
The three-dimensional molecular and crystal structures of a pair of enantiopure mirror complexes of Ni (II) to chiral Schiff bases of (R)- and (S)-serine with (S)- and (R)-2-N-(N′-benzylprolyl)-aminobenzophenone (BPB), denoted as (S,R)-BPB-Ser-Ni and (R,S)-BPB-Ser-Ni, respectively, have been determined by X-ray diffraction. The complexes crystallize in the orthorhombic space group P2
1
2
1
2
1
with unit cell parameters: a = 10.050(2) Å, b = 10.100(2) Å, c = 26.514(5) Å, V = 2691.3(9) Å3, and Z = 4 for (S,R)-BPB-Ser-Ni; and a = 9.878(2) Å, b = 10.130(2) Å, c = 26.304(5) Å, V = 2632.1(9) Å3, and Z = 4 for (R,S)-BPB-Ser-Ni. The Ni atom is square-planar-coordinated to N(1), N(2), O(4), and N(3) of the Schiff base with minor distortion. The hydroxymethyl group on the serine moiety is axial to the coordination plane and parallel to the neighboring phenyl group. 相似文献
13.
A hexaazamacrocyclic copper(II) complex Cu(L)(H2O) (O2CCH = CHCO2)⋅H2O (1) (L = 3,10-bis(2-hydroxyethyl)-1,3,5,8,10,12-hexaazacyclotetradecane) was prepared and structurally characterized by a combination of analytical, spectroscopic, and crystallographic methods. In complex 1, the coordination geometry about the copper(II) ion is six-coordinate with four equatorial nitrogen atoms from the macrocycle and two oxygen atoms from the axial maleato and aqua ligands. In 1, the one end of the maleato ligand coordinates to the central copper atom, while the other end is not bonded. The macrocycle and the axial ligands are highly involved in multiple types of hydrogen bonding interactions, resulting in the stabilization of the maleato ligand as a “coordinated ligand counter anion.” 相似文献
14.
Hai-Liang Zhu Su-Yue Li Zhen-Dong Wang Feng Yang 《Journal of chemical crystallography》2004,34(3):203-206
The title compound is [CuL(H2O)]Cl, C11H18N3ClO2Cu, where L is N-(2-hydro- xyphenylmethenylimino)-1,5-diamine-3-azapentane. In the cation the metal atom is coordinated by three N and two O atoms from L and a water molecule in a distorted square-pyramidal geometry. 相似文献
15.
José A. García-Vázquez Jaime Romero Antonio Sousa-Pedrares Antonio Sousa A.D. Garnovskii Dimitri A. Garnovskii 《Journal of chemical crystallography》2000,30(1):23-26
The compound [Fe(C4H6N2)6][C5H4NSO3]2 crystallized in the monoclinic space group, P21/n with unit cell parameters: a = 13.676(3), b = 8.345(2), c = 18.663(4) Å, = 106.40(3)° and Z = 2. The title compound consists of a [Fe(C4H6N2)6]+2 hexacoordinated iron(II) cation and two C5H4NSO–
3 anions. In the cation the iron atom is coordinated to six N-methylimidazole imine nitrogen atoms in a distorted octahedral arrangement. The N1,N5,N1i,N5i atoms are coplanar and the iron lies in this plane. 相似文献
16.
Wei-Wei Ni Hui-Zhong Kou Zhong-Hai Ni Ru-Ji Wang 《Journal of chemical crystallography》2006,36(1):47-54
Two new manganese(II)-1,10-phenanthroline-nitroprusside complexes, [Mn(phen)3][Fe (CN)5(NO)]⋯2H2O⋯0.25CH3OH (1) and [Mn(phen)2(H2O)2][Fe(CN)5(NO)]⋯H2O (2) (where phen is 1,10-phenanthroline) have been synthesized and characterized by X-ray diffraction, electronic paramagnetic resonance (E.P.R.) and IR analyses. Complex 1 crystallizes in the monoclinic space group P21/n, with lattice parameters a = 10.0441(15) Å, b = 19.668(2) Å, c = 19.938(3) Å, β =100.427(14)°, V = 3873.7(10) Å3, Z = 4; complex (2) crystallizes in the monoclinic space group C2/c, with a = 17.120(2) Å, b = 13.7925(19) Å, c = 14.4362(17) Å, β = 107.962(12)°, V = 3242.6(7) Å3, Z = 4. In the two compounds, three phen ligands 1, or two phen ligands and two cis-related aqua molecules 2, are in a distorted octahedral arrangement around the Mn(II) ion. The nitroprusside anion, [Fe(CN)5(NO)]2−, acts as a counterion. It is intriguing that in complex 2 no cyano bridges are present with two water molecules coordinated to the Mn(II) ion considering that usually the cyano nitrogen atoms are strong donors and could readily replace the coordinating solvent water molecules. Abundant hydrogen bond interactions and π–π stacking between the phen rings in two complexes lead to three-dimensional supramolecular networks. 相似文献
17.
Lu Lu Jun Wang Jian‐Wei Bai Yang Hou Bin Yang Bao‐Zhong Zhao 《Crystal Research and Technology》2008,43(12):1327-1330
An exploration of the cadmium‐L system under hydrothermal condition, has led to the isolation of a novel framework {[Cd(L)0.5(H2O)3]}n ( 1 ) (H4L = 4,4'‐diazenediyldiphthalic acid). Single‐crystal X‐ray analysis reveals that it crystallizes in the triclinic space group P‐1. a = 5.746(3) Å, b =6.526(4) Å, c = 14.701(8) Å, α=92.348(8), β = 99.622(6), γ=106.877(7)°. The CdII ions are linked into an extended 2‐D rectangle‐like structure via L ligands, which exhibits an attractive three‐connected honeycomb topological network. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
18.
Na Xu Yan Ou-Yang Dai-Zheng Liao Zong-Hui Jiang Shi-Ping Yan Peng Cheng 《Journal of chemical crystallography》2006,36(9):581-585
A novel tetrachlorophthalato-Yb(III) complex [Yb(tcph)(H2O)7]Htcph·H2tcph·H2O (1) (H2tcph=tetrachlorophthalic acid) has been synthesized and characterized by the single crystal X-ray diffraction analysis. Colorless crystals of 1 crystallize in the triclinic space group P-1, with a=6.8504(5) ?, b=16.1921(12) ?, c=19.0123(14) ? and α=67.4470(10)°, β=86.5290(10)°, γ=81.6480(10)°, V=2.113 g/cm3 and Z=2. Unique reflections with I > 2σ(I) on refinement afford values of R
1=0.0219 and wR
2=0.0565. 相似文献
19.
The reaction of the dithioether ligand, 2,3-bis(5-methyl-1,3,4-thiadiazole-2-thiomethyl) quinoxaline (L) with AgBF4, leads to the formation of a novel complex {[AgL](BF4)}∞
1, which has been characterized by single-crystal X-ray diffraction analysis: monoclinic, space group C2/c, with a = 20.316(7) ?, b = 12.401(4) ?, c = 18.039(6) ?, β = 108.404(6)° and V = 4312(3) ?3. The crystal structure of the complex consists of 1D {[AgL]+}∞ cation chain and BF4
− anions. In 1, the coordination geometry of AgI center can be best described as trigonal planar coordinated by three N from two distinct L ligands. The ligand is polydentate with one end adopting a bidentate conformation to chelate an AgI atom and the other end monodentate to bridge another AgI resulting in an infinite chain along b axis. There exist Ag⋯N weak coordination, π–π stacking and F⋯S weak interactions in the complex, and these weak interactions link the 1D complex into 3D supramolecular structure and further stabilize the crystal structure in the solid state. 相似文献
20.
Omer Andac Yildiray Topcu Veysel T. Yilmaz William T.A. Harrison 《Journal of chemical crystallography》2000,30(12):767-771
The crystal structure of trans-bis(monoethanolamine)bis(saccharinato)nickel(II), [Ni(C7H4NO3S)2(C2H7NO)2], has been determined from X-ray diffraction data. The metal complex is monoclinic, with a = 11.0555(5), b = 8.9103(4), c = 11.3890(5) Å, = 105.0230(10)°, Z = 2, and space group P21/c
. The structure consists of individual molecules. Two monoethanolamine molecules and two saccharinate anions coordinate the nickel atom forming a distorted octahedron. The monoethanolamine molecules act as a bidentate ligand and form five-membered trans chelate rings, which constitute the plane of the coordination octahedron, while two saccharinate ions behave as a monodentate ligand occupying the axial positions. Intermolecular hydrogen bonds link the molecules to form a three-dimensional infinite structure. 相似文献