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1.
Ying‐Quan Zou Xia Li Yan Li Huai‐Ming Hu 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(9):1048-1050
The title compound, tetrakis(μ‐2,3‐dimethoxybenzoato)‐κ4O:O′;κ6O,O′:O′‐bis[(2,2′‐bipyridine‐N,N′)(2,3‐dimethoxybenzoato‐O,O′)lanthanum(III)], [La2(2,3‐DMOBA)6(2,2′‐bpy)2], where 2,3‐DMOBA is 2,3‐dimethoxybenzoate (C9H9O4) and 2,2′‐bpy is 2,2′‐bipyridine (C10H8N2), is a dimer with a centre of inversion between the La atoms bridged by four carboxylate ligands. The central La atom is ennea‐coordinated and has a distorted monocapped square‐antiprism geometry. 相似文献
2.
Cengiz Arici Filiz Ercan Raif Kurtaran Orhan Atakol 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(7):812-814
In the title compounds, {2,2′‐[2,2‐dimethyl‐1,3‐propanediylbis(nitrilomethylidyne)]diphenolato‐κ4N,N′,O,O′}nickel(II), [Ni(C19H20N2O2)], and {2,2′‐[2,2‐dimethyl‐1,3‐propanediylbis(nitrilomethylidyne)]diphenolato‐κ4N,N′,O,O′}copper(II), [Cu(C19H20N2O2)], the NiII and CuII atoms are coordinated by two iminic N and two phenolic O atoms of the N,N′‐bis(salicylidene)‐2,2‐dimethyl‐1,3‐propanediaminate (SALPD2?, C17H16N2O22?) ligand. The geometry of the coordination sphere is planar in the case of the NiII complex and distorted towards tetrahedral for the CuII complex. Both complexes have a cis configuration imposed by the chelate ligand. The dihedral angles between the N/Ni/O and N/Cu/O coordination planes are 17.20 (6) and 35.13 (7)°, respectively. 相似文献
3.
Ayhan Elmali C. Tugrul Zeyrek YalcÛn Elerman Ingrid Svoboda 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(11):1302-1304
The title compounds, {4,4′‐dibromo‐2,2′‐[1,3‐propanediylbis(nitrilomethylidyne‐N)]diphenolato‐O,O′}nickel(II), [Ni(C17H14Br2N2O2)], and {4,4′‐dichloro‐2,2′‐[1,3‐propanediylbis(nitrilomethylidyne‐N)]diphenolato‐O,O′}copper(II), [Cu(C17H14Cl2N2O2)], lie on crystallographic twofold axes. In both structures, the metal coordination sphere is a tetrahedrally distorted square plane formed by the four‐coordinate N2O2 donor set of the Schiff base imine–phenol ligands. In the Ni compound, the Ni—O and Ni—N distances are 1.908 (3) and 1.959 (4) Å, respectively, while in the Cu compound, the Cu—O and Cu—N distances are 1.907 (2) and 1.960 (2) Å, respectively. The two Schiff base moieties, which themselves are nearly planar, are inclined at an angle of 29.26 (7)° for the Ni compound and 29.26 (5)° for the Cu compound. 相似文献
4.
Ayhan Elmali Ebru Kavlakoglu YalcÛn Elerman Ingrid Svoboda 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):1097-1099
The title compound, aquachloro{4,4′‐dibromo‐2,2′‐[o‐phenylenebis(nitrilomethylidyne)]diphenolato‐O,N,N′,O′}iron(III)–chloro{4,4′‐dibromo‐2,2′‐[o‐phenylenebis(nitrilomethyli‐dyne)]diphenolato‐O,N,N′,O′}iron(III)–dimethylformamide (1/1/1), [FeCl(C20H12Br2N2O2)][FeCl(C20H12Br2N2O2)(H2O)]·C3H7NO, contains one independent five‐coordinate [FeCl(C20H12Br2N2O2)] monomer, one six‐coordinate [FeCl(C20H12Br2N2O2)(H2O)] monomer and a non‐coordinating dimethylformamide solvent molecule in the asymmetric unit. In the five‐coordinate monomer, the Fe atom shows distorted square‐pyramidal geometry, with the N and O atoms of the ligand at the base and the Cl atom at the apex of the pyramid. In the six‐coordinate monomer, the Fe atom is in a distorted octahedral geometry and coordinated by the donor atoms of the tetrafunctional ligand in the horizontal plane, and the coordination sphere is completed by the O atom of the water molecule and the Cl atom at the axial positions. The title compound contains intermolecular O—H?O hydrogen bonds. Apart from these hydrogen bonds, there are also intermolecular C—H?Cl and C—H?O contacts. 相似文献
5.
Zheng‐Liang Lü Zhi‐Liang Liu De‐Qing Zhang 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(3):m147-m150
In the two isomorphous title compounds, viz. tris[2,2′‐bi(4,5‐dihydro‐1,3‐oxazole)‐κ2N,N′]copper(II) diperchlorate, [Cu(C6H8N2O2)3](ClO4)2, (I), and tris[2,2′‐bi(4,5‐dihydro‐1,3‐oxazole)‐κ2N,N′]nickel(II) diperchlorate, [Ni(C6H8N2O2)3](ClO4)2, (II), the MII ions each have a distorted octahedral coordination geometry formed via six N atoms from three 2,2′‐bioxazoline ligands. For each ligand, the two five‐membered rings are nearly coplanar. It is noteworthy that the Jahn–Teller effect is stronger in (I) than in (II). The three‐dimensional supramolecular structures of (I) and (II) are formed via weak hydrogen‐bonding interactions between O atoms from perchlorate anions and H atoms from 2,2′‐bioxazoline ligands. 相似文献
6.
Hong‐Tao Zhang Xiao‐Zeng You 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(8):m313-m314
The asymmetric unit of the title one‐dimensional coordination polymer, catena‐poly[[μ‐pyridine‐2,3‐dicarboxylato‐1κO:2κ2N,O′‐bis[diaquacobalt(II)]]‐μ‐pyridine‐2,3‐dicarboxylato‐1κ2N,O:2κO′:1′κO′], [Co(C7H3NO4)(H2O)2]n, is composed of a cobalt(II) ion, a pyridine‐2,3‐dicarboxylate dianion and two water molecules. The polymer has a zigzag structure consisting of a chain of edge‐fused rings, and the polymer chains are linked by O—H⃛O hydrogen bonds into a three‐dimensional framework. 相似文献
7.
M. Enriqueta Díaz de Vivar Sergio Baggio Juan Carlos Muoz Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(1):m30-m33
Two different zinc sulfite compounds have been prepared through the decomposition of pyrosulfite–dithionite ions in aqueous solution, viz. a dimeric complex, di‐μ‐sulfito‐κ3O,O′:O′′;κ3O:O′,O′′‐bis[(4,4′‐dimethyl‐2,2′‐bipyridine‐κ2N,N′)zinc(II)] dihydrate, [Zn2(SO3)2(C12H12N2)2]·2H2O, (I), which was solved and refined from a twinned sample, and an extended polymer, poly[[aqua(1,10‐phenanthroline‐κ2N,N′)zinc(II)]‐μ3‐sulfito‐κ2O:O′:O′′‐zinc(II)‐μ3‐sulfito‐κ3O:O:O′], [Zn2(SO3)2(C12H10N2)(H2O)]n, (II). In (I), the dinuclear ZnII complex has a center of symmetry. The cation is five‐coordinate in a square‐pyramidal arrangement, the anion fulfilling a bridging chelating role. Compound (II) comprises two different zinc units, one being five‐coordinate (square pyramidal) and the other four‐coordinate (trigonal pyramidal), and two independent sulfite groups with different binding modes to the cationic centers. 相似文献
8.
Eleonora Freire Sergio Baggio Juan Carlos Muoz Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(8):m455-m458
The structure of bis(1,10‐phenanthroline‐κ2N,N′)(thiosulfato‐κ2O:S)manganese(II) methanol solvate, [Mn(S2O3)(C12H8N2)2]·CH3OH, is made up of Mn2+ centers coordinated to two bidentate phenanthroline (phen) groups and an S,O‐chelating thiosulfate anion, forming monomeric entities. The structure of catena‐poly[[diaqua(2,9‐dimethyl‐1,10‐phenanthroline‐κ2N,N′)manganese(II)]‐μ‐thiosulfato‐κ2O:S], [Mn(S2O3)(C14H12N2)(H2O)2]n, is polymeric, consisting of Mn(dmph)(H2O)2 units (dmph is 2,9‐dimethyl‐1,10‐phenanthroline) linked by thiosulfate anions acting in an S,O‐chelating manner. 相似文献
9.
Ayhan Elmali Yalcn Elerman Ingrid Svoboda 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(4):375-376
The crystal structure of the title compound, {bis[2‐(2‐oxido‐2‐naphthylideneamino)phenyl] disulfide‐κ5O,N,S,N′,O′}chloroiron(III), [FeCl(C34H22N2O2S2)], has been determined. The structure consists of monomeric iron(III) complexes with distorted octahedral coordination. The disulfide functions as a pentadentate ligand and the FeIII atom is coordinated through two N, two O and one S atom, and one chloride ion. The distance between the second S atom and the FeIII atom is a non‐bonding 3.8473 (14) Å. 相似文献
10.
B. de Castro C. Freire M. Teresa Duarte M. F. Minas da Piedade I. C. Santos 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(4):370-372
In the title complex, trans‐{2,2′‐[cyclohexane‐1,2‐diylbis(nitrilomethylidyne)]diphenolato‐κ4O,N,N′,O′}nickel(II)–chloroform (1/1), [Ni(C20H20N2O2)]·CHCl3, the Ni atom has a square‐planar geometry, slightly tetrahedrally distorted. The Ni—N and Ni—O bonding distances are within the expected ranges for Ni–Schiff base derivatives. The diimine bridge has a gauche conformation with the cyclohexyl ring almost coplanar with the NiN2O2 plane. The complex molecules pack in dimers with an Ni?Ni distance of 3.59 (1) Å and form a three‐dimensional structure displaying a herring‐bone configuration. Channels are occupied by solvent molecules, which are involved in C—H?O hydrogen bonds with the ligand O atoms. 相似文献
11.
Miguel Angel Harvey Sergio Baggio Andrs Ibaez Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(8):m382-m385
Two differently hydrated crystal forms of the title compound, viz. bis(acetato‐κ2O,O′)(2,9‐dimethyl‐1,10‐phenanthroline‐κ2N,N′)mercury(II), [Hg(C2H3O2)2(C14H12N2)] or [HgAc2(dmph)] [dmph is 2,3‐dimethyl‐1,10‐phenantroline (neocuproine) and Ac is acetate], (I), and tris[bis(acetato‐κ2O,O′)(2,9‐dimethyl‐1,10‐phenanthroline‐κ2N,N′)mercury(II)] hexadecahydrate, [Hg(C2H3O2)2(C14H12N2)]3·16H2O or [HgAc2(dmph)]3·16H2O, (II), are presented. Both structures are composed of very simple monomeric units, which act as the building blocks of complex packing schemes stabilized by a diversity of π–π and hydrogen‐bonding interactions. 相似文献
12.
Lionel Salmon Pierre Thury Michel Ephritikhine 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(6):m246-m248
The title complex, bis(acetylacetonato‐κ2O,O′)[N,N′‐bis(3‐hydroxy‐2‐oxidobenzaldimino)‐2‐methyl‐1,2‐propanediamine‐κ4N,O,O′,N′]uranium(IV) tetrahydrofuran solvate, [U(C18H18N2O4)(C5H7O2)2]·C4H8O, is a rare example of a uranium(IV) complex with a compartmental Schiff base. The U atom is located in the N2O2 inner site of the hexadentate N,N′‐bis(3‐hydroxy‐2‐oxidobenzaldimino)‐2‐methyl‐1,2‐propanediamine group and is bound also to the two O atoms of both acetylacetonate moieties, which results in a dodecahedral coordination environment. Centrosymmetric dimers are formed through intermolecular hydrogen bonds that link the terminal uncoordinated hydroxy groups to one another and to the O atoms of the acetylacetonate ligands. 相似文献
13.
Omer Andac Serkan Guney Yildiray Topcu Veysel T. Yilmaz William T. A. Harrison 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(1):m17-m20
Bis(pyridine‐2,6‐dimethanol‐N,O,O′)cobalt(II) disaccharinate dihydrate, [Co(C7H9NO2)2](C7H4NO3S)2·2H2O, (I), and bis(pyridine‐2,6‐dimethanol‐N,O,O′)copper(II) disaccharinate dihydrate, [Cu(C7H9NO2)2](C7H4NO3S)2·2H2O, (II), collectively [M(dmpy)2](sac)2·2H2O (where M is CoII or CuII, sac is the saccharinate anion and dmpy is pyridine‐2,6‐dimethanol), are isostructural. The [M(dmpy)2]2+ cations exhibit distorted octahedral geometry in which the two neutral dmpy species act as tripodal N,O,O′‐tridentate ligands. The crystal packing is determined by hydrogen bonding, as well as by weak pyridine–saccharinate π–π‐stacking interactions. 相似文献
14.
Dorothy H. Gibson Mark S. Mashuta Xiaolong Yin 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(8):m366-m367
The title organometallic compound, fac‐tricarbonyl‐2κ3C‐(4,4′‐dimethyl‐2,2′‐bipyridine)‐2κ2N,N′‐triphenyl‐1κ3C1‐tin(II)rhenium(I)(Sn—Re), [ReSn(C6H5)3(C12H12N2)(CO)3], contains three unique π–π stacking interactions. The result is an infinite chain of uninterrupted alternating intra‐ and intermolecular offset π–π stacking interactions throughout the crystal lattice. This extended π–π stacking arrangement, and an additional isolated intramolecular π–π interaction between the remaining 4,4′‐dimethyl‐2,2′‐bipyridine ring and a second phenyl group, impose geometric constraints on the Re and Sn atoms, yielding distorted octahedral and tetrahedral coordinations, respectively, for the metal centers. 相似文献
15.
Tamami Koshiyama Masako Kato 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(11):m446-m449
The title PtII complexes, viz. (2,2′‐bipyridine‐κ2N,N′)[(1R,2R)‐1,2‐diaminocyclohexane‐κ2N,N′]platinum(II) bis(hexafluorophosphate), [Pt(C6H14N2)(C10H8N2)](PF6)2, and [(1R,2R)‐1,2‐diaminocyclohexane‐κ2N,N′](1,10‐phenanthroline‐κ2N,N′)platinum(II) bis(hexafluorophosphate), [Pt(C6H14N2)(C12H8N2)](PF6)2, containing an aromatic α‐diimine and a non‐planar diaminocyclohexane, both form a ladder‐type structure, which is constructed via loose π–π stacking on the α‐diimine ligands and hydrogen bonding between the cyclic amines and the counter‐anions. In the former compound, there are two independent complex cations, both of which have a twofold axis through the Pt atom. 相似文献
16.
Georgina M. Rosair Dilip Kumar Dey Brajagopal Samanta Samiran Mitra 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):m266-m267
The structure of the title dimethyltin(IV) complex, [2‐(5‐bromo‐2‐oxidobenzylideneamino)benzoato‐κ3O,N,O′]dimethyltin(IV), [Sn(CH3)2(C14H8BrNO3)], features centrosymmetric dimers disposed about a central Sn2O2 core. Each Sn centre has seven‐coordinate pentagonal–bipyramidal geometry, taking into account two moderately long Sn—O contacts about an inversion centre [2.679 (4) and 2.981 (4) Å]. The methyl groups are in an axial orientation. 相似文献
17.
Guohong Zhang Yongge Wei Ping Wang Hongyou Guo 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(12):m605-m607
The title compound, [Co(C12H6N2O4)(H2O)2]n, has been hydrothermally synthesized and structurally characterized. It consists of polymeric chains of [Co{μ‐(2,2′‐bipyridyl‐3,3′‐dicarboxylato‐κ4N,N′:O,O′)}(H2O)2] units, in which each CoII cation is octahedrally coordinated by two chelating pyridyl N atoms, two chelating carboxyl O atoms from different carboxylate groups of another bipyridyl ligand, and two water molecules as terminal ligands. A crystallographic twofold axis parallel to the chain axis, passes through the Co atom. 相似文献
18.
Bao‐Zhong Zhao Xiang‐Rong Hao Zhan‐Gang Han Qiang Fu Ya‐Guang Chen 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(1):m48-m50
A novel copper(II) coordination polymer, poly[[[aquacopper(II)]‐μ3‐2,2′‐bipyridyl‐3,3′‐dicarboxylato‐κ4N,N′:O:O′] dihydrate], {[Cu(C12H6N2O4)(H2O)]·2H2O}n, was obtained by the reaction of CuCl2·2H2O and 2,2′‐bipyridyl‐3,3′‐dicarboxylic acid (H2L) in water. In the molecule, each CuII atom is five‐coordinated and lies at the centre of a square‐pyramidal basal plane, bridged by three L ligands to form a two‐dimensional (4,4)‐network. Each L moiety acts as a bridging tetradentate ligand, coordinating to three CuII atoms through its two aromatic N atoms and two O atoms of the two carboxyl groups. The two‐dimensional square‐grid sheets superimpose in an off‐set fashion through the inorganic water layer. 相似文献
19.
Andrew Bond William Jones 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(4):436-437
The title compound, [Mg(C5H4NOS)2(H2O)2]·C10H8N2O2S2, is a two‐component host–guest material. The 2,2′‐dithiobis(pyridine N‐oxide) molecule has crystallographic twofold symmetry. The metal complex lies on an inversion centre and associates via C—H?S interactions into chains which thread the 2,2′‐dithiobis(pyridine N‐oxide) lattice in perpendicular directions. Hydrogen bonds exist between the water molecules of the diaquamagnesium units and the N—O groups of the host lattice. 相似文献
20.
Rita Song Kwan Mook Kim Youn Soo Sohn 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(10):e447-e447
The title compound, catena‐poly[[[triaqua‐2κ3O‐(2,2‐dimethyl‐1,3‐propanediamine)‐1κ2N,N′‐μ‐isonicotinato‐1:2κ2N:O‐copper(II)platinum(II)]‐μ‐isonicotinato‐2:1′κ2O:N] dinitrate], {[CuPt(C6H4NO2)2(C5H14N2)(H2O)3](NO3)2}n, obtained from equimolar (dmpda)PtII(isonic)2 (where dmpda is 2,2‐dimethyl‐1,3‐propanediamine and isonic is isonicotinate) and copper(II) nitrate, has been found to be a one‐dimensional coordination polymer of the zigzag‐type. 相似文献