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1.
Masato Goto Yoshiyuki Kani Masanobu Tsuchimoto Shigeru Ohba Hideaki Matsushima Tadashi Tokii 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(1):7-11
In the crystals of the five title compounds, tetrakis‐(μ‐3,3‐dimethylbutyrato‐O:O′)bis(ethanol‐O)dicopper(II)–ethanol (1/2), [Cu2(C6H11O2)4(C2H6O)2]·2C2H6O, (I), tetrakis(μ‐3,3‐dimethylbutyrato‐O:O′)bis(2‐methylpyridine‐N)dicopper(II), [Cu2(C6H11O2)4(C6H7N)2], (II), tetrakis‐(μ‐3,3‐dimethylbutyrato‐O:O′)bis(3‐methylpyridine‐N)di‐copper(II), [Cu2(C6H11O2)4(C6H7N)2], (III), tetrakis‐(μ‐3,3‐dimethylbutyrato‐O:O′)bis(4‐methylpyridine‐N)di‐copper(II), [Cu2(C6H11O2)4(C6H7N)2], (IV), and tetrakis‐(μ‐3,3‐dimethylbutyrato‐O:O′)bis(3,3‐dimethylbutyric acid‐O)dicopper(II), [Cu2(C6H11O2)4(C6H12O2)2], (V), the dinuclear CuII complexes all have centrosymmetric cage structures and (IV) has two independent molecules. The Cu?Cu separations are: (I) 2.602 (3) Å, (II) 2.666 (3) Å, (III) 2.640 (2) Å, (IV) 2.638 (4) Å and (V) 2.599 (1) Å. 相似文献
2.
Tadeusz Lis Petra Stachov Duan Valigura Jan Moncol 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(8):m375-m377
The title compound {systematic name: tetrakis(μ‐3,5‐dinitrobenzoato‐κ2O:O′)bis[(3,7‐dihydro‐1,3,7‐trimethyl‐1H‐purine‐2,6‐dione‐κO2)copper(II)]}, [Cu2(C7H3N2O6)4(C8H10N4O2)2], consists of paddle‐wheel dimeric tetrakis(μ‐3,5‐dinitrobenzoato‐κ2O:O′)dicopper(II) units with O‐coordinated caffeine molecules in both apical positions. The entire dimeric molecule lies on a tetragonal inversion axis, and thus one nitrobenzoate anion with one Cu atom in a special position belong to the independent part of the molecule. The caffeine ligand bonded to the Cu atom is disordered on a local twofold non‐crystallographic axis coincident with the axis. A π–π stacking interaction is observed between the caffeine rings and adjacent symmetry‐related benzene rings of the 3,5‐dinitrobenzoate anions. 相似文献
3.
Daniel E. Lynch Helen L. Duckhouse 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(10):e425-e425
The structure of the title compound, [Cu2(C9H9O3)4(C4H5N3)], comprises a zigzag polymer of alternating tetrakis(carboxylato‐O:O′)dicopper(II) and 2‐aminopyrimidine units linked by axial Cu—N bonds, and the non‐centrosymmetric structure has four unique (3‐methoxyphenyl)acetate moieties. 相似文献
4.
Nina Lah Gerald Giester Primo egedin Anica Murn Katja Podlipnik Ivan Leban 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(5):546-548
The title compounds, tetrakis(μ‐benzoato‐O:O′)bis(2,6‐diaminopyridine)‐1κN,2κN‐dicopper(II)–acetonitrile (1/2), [Cu2(C7H5O2)4(C5H7N3)2]·2C2H3N, (I), and bis(acetonitrile)‐1κN,2κN‐tetrakis(μ‐benzoato‐O:O′)dicopper(II)–acetonitrile (1/1.5), [Cu2(C7H5O2)4(C2H3N)2]·1.5C2H3N, (II), crystallize as acetonitrile solvates exhibiting different stability. They have similar molecular structures with discrete dimeric units located at crystallographic inversion centres. The copper ions are bridged by four benzoate groups and neutral N‐donor ligands, viz. 2,6‐diaminopyridine in (I) and acetonitrile in (II), are coordinated at apical positions. The diverse stability is probably due to hydrogen‐bond interactions of the solvated acetonitrile molecules with neighbouring dimers in compound (I). 相似文献
5.
Russell G. Baughman Daniel J. Brink Jill M. Butler Pamela R. New 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(5):528-531
The first single‐crystal studies of three bis‐transoid Cu–hydroxamate salts, bis(3‐methoxy‐4,N‐dimethylbenzohydroxamato‐O,O′)copper(II), [Cu(C10H12NO3)2], bis(4‐chloro‐N‐methylbenzohydroxamato‐O,O′)copper(II), [Cu(C8H7ClNO2)2], bis(N‐methyl‐3,5‐dinitrobenzohydroxamato‐O,O′)copper(II)–chloroform (1/2), [Cu(C8H6N3O6)2]·2CHCl3, are presented. The Cu atom in each of the title compounds sits at a center of inversion and displays a nearly square‐planar geometry with the hydroxamate‐O atoms connected to it in a syn configuration. The N atoms are in a transoid configuration. Each five‐membered Cu–hydroxamate ring is planar, thus providing evidence that a planar N atom is present in each ring. The phenyl groups are twisted with respect to the hydroxamate group by ~40–54°. The angular strain of the sp2 carbonyl oxygen is significant (~10° from ideal). 相似文献
6.
Fangfang Jian Ying Wang Lude Lu Xujie Yang Xin Wang Suchada Chantrapromma Hoong‐Kun Fun Ibrahim Abdul Razak 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(6):714-716
The crystal structures of tris(2‐methylquinolin‐8‐olato‐N,O)iron(III), [Fe(C10H8NO)3], (I), and aquabis(2‐methylquinolin‐8‐olato‐N,O)copper(II), [Cu(C10H8NO)2(H2O)], (II), have been determined. Compound (I) has a distorted octahedral configuration, in which the central Fe atom is coordinated by three N atoms and three O atoms from three 2‐methylquinolin‐8‐olate ligands. The three Fe—O bond distances are in the range 1.934 (2)–1.947 (2) Å, while the three Fe—N bond distances range from 2.204 (2) to 2.405 (2) Å. In compound (II), the central CuII atom and H2O group lie on the crystallographic twofold axis and the coordination geometry of the CuII atom is close to trigonal bipyramidal, with the three O atoms in the basal plane and the two N atoms in apical positions. The Cu—N bond length is 2.018 (5) Å. The Cu—O bond length in the basal positions is 1.991 (4) Å, while the Cu—O bond length in the apical position is 2.273 (6) Å. There is an intermolecular OW—H?O hydrogen bond which links the molecules into a linear chain along the b axis. 相似文献
7.
Rong Cao Mutai Bao Jiabao Weng Weiping Su Maochun Hong 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(5):e185-e186
The title centrosymmetric CuII binuclear complex, bis(μ‐N,N‐diethyl‐1,1‐diselenocarbamato‐Se,Se′:Se)bis[(N,N‐diethyl‐1,1‐diselenocarbamato‐Se,Se′)copper(II)], [Cu(Se2CNEt2)2]2 or [Cu2(C5H10NSe2)4], is built from two symmetry‐related [Cu{Se2CN(Et)2}2] units by pairs of Cu—Se bonds. The coordination geometry at the unique Cu atom is distorted square pyramidal, with Cu—Se distances in the range 2.4091 (11)—2.9095 (10) Å. 相似文献
8.
Andrs Zelcer Zulema D. Chaia Fabio D. Cukiernik Oscar E. Piro Eduardo E. Castellano 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(3):m144-m146
The title compound, catena‐poly[[tetrakis(μ‐decanoato‐κ2O:O′)diruthenium(II,III)(Ru—Ru)]‐μ‐octanesulfonato‐κ2O:O′], [Ru2(C10H19O2)4(C8H17O3S)], is an octanesulfonate derivative of the mixed‐valence complex diruthenium tetradecanoate. The equatorial carboxylate ligands are bidentate, bridging two Ru atoms to form a dinuclear structure. Each of the two independent dinuclear metal complexes in the asymmetric unit is located at an inversion centre. The octanesulfonate anion bridges the two dinuclear units through axial coordination. The alkyl chains of the carboxylate and sulfonate ligands are arranged in a parallel manner. The global structure can be seen as infinite chains of polar moieties separated by a double layer of non‐polar alkyl groups, without interdigitation of the alkyl chains. 相似文献
9.
Tomislav Fri
i Alan J. Lough George Ferguson Branko Kaitner 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(5):m313-m315
The title dimeric complex, bis{μ‐2,2′‐[hexane‐1,6‐diylbis(nitrilomethylidyne)]diphenolato‐1:2κ4O,N:N′,O′}dicopper(II),[Cu2(C20H22N2O2)2], has been investigated by single‐crystal X‐ray diffraction, by thermogravimetric analysis and differential scanning calorimetry, and also by FT–IR spectroscopy. Different synthetic and crystallization procedures gave crystals which were quite different in appearance, and it was initially thought that these were different polymorphic forms. Subsequent structure determination showed, in fact, serendipitous preparation of crystals in the P41 space group by one method and in space group P43 by the other. In these enantiomorphic structures, the Cu atoms have a distorted flattened tetrahedral coordination, with Cu—N and Cu—O distances in the ranges 1.954 (4)–1.983 (4) and 1.887 (4)–1.903 (4) Å, respectively. 相似文献
10.
Ayhan Elmali Yalin Elerman Ingrid Svoboda 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(4):423-424
In the title compound, {4,4′‐dibromo‐2,2′‐[o‐phenylenebis(nitrilomethylidene)]diphenolato‐O,N,N′,O′}copper(II), [Cu(C20H12Br2N2O2], the CuII ion shows a slightly distorted square‐planar geometry with the N2O2 atoms of the Schiff base imine–phenol tetradentate ligand. 相似文献
11.
Anna S. Degtyarenko Pavlo V. Solntsev Eduard B. Rusanov Alexander N. Chernega Konstantin V. Domasevitch 《Acta Crystallographica. Section C, Structural Chemistry》2008,64(7):m254-m258
4,4′‐(p‐Phenylene)bipyridazine, C14H10N4, (I), and the coordination compounds catena‐poly[[dibromidocopper(II)]‐μ‐4,4′‐(p‐phenylene)bipyridazine‐κ2N2:N2′], [CuBr2(C14H10N4)]n, (II), and catena‐poly[[[tetrakis(μ‐acetato‐κ2O:O′)dicopper(II)]‐μ‐4,4′‐(p‐phenylene)bipyridazine‐κ2N1:N1′] chloroform disolvate], {[Cu2(C2H3O2)4(C14H10N4)]·2CHCl3}n, (III), contain a new extended bitopic ligand. The combination of the p‐phenylene spacer and the electron‐deficient pyridazine rings precludes C—H...π interactions between the lengthy aromatic molecules, which could be suited for the synthesis of open‐framework coordination polymers. In (I), the molecules are situated across a center of inversion and display a set of very weak intermolecular C—H...N hydrogen bonds [3.399 (3) and 3.608 (2) Å]. In (II) and (III), the ligand molecules are situated across a center of inversion and act as N2,N2′‐bidentate [in (II)] and N1,N1′‐bidentate [in (III)] long‐distance bridges between the metal ions, leading to the formation of coordination chains [Cu—N = 2.005 (3) Å in (II) and 2.199 (2) Å in (III)]. In (II), the copper ion lies on a center of inversion and adopts CuN2Br4 (4+2)‐coordination involving two long axial Cu—Br bonds [3.2421 (4) Å]. In (III), the copper ion has a tetragonal pyramidal CuO4N environment. The uncoordinated pyridazine N atom and two acetate O atoms provide a multiple acceptor site for accommodation of a chloroform solvent molecule by trifurcated hydrogen bonding [C—H...O(N) = 3.298 (5)–3.541 (4) Å]. 相似文献
12.
Yaln Elerman Hülya Kara Sabahat
zcan Engin Kendi 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(8):950-951
The crystal structure of the title compound, chloro(1,10‐phenanthroline‐N,N′)(1‐phenyl‐1,3‐butanedionato‐O,O′)copper(II), [CuCl(C10H9O2)(C12H8N2)], has been determined. The CuII ion displays a distorted square‐pyramidal coordination, being linked to the two O atoms of the benzoylacetonate ligand and the two N atoms of the 1,10‐phenanthroline ligand in the basal plane, and the Cl atom in the apical site. TheCu—N, Cu—O and Cu—Cl bond lengths are 2.043 (2)/2.025 (2), 1.914 (2)/1.941 (2) and 2.485 (1) Å, respectively. 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.
Jaromír Marek Jn Van
o Oga vajlenov 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m509-m511
The title polymeric compound, catena‐poly[dipotassium [bis[μ‐N‐salicylidene‐β‐alaninato(2−)]‐κ4O,N,O′:O′′;κ4O′′:O,N,O′‐dicopper(II)]‐di‐μ‐isothiocyanato‐κ2N:S;κ2S:N], {K[Cu(NCS)(C10H9NO3)]}n, consists of [isothiocyanato(N‐salicylidene‐β‐alaninato)copper(II)]− anions connected through the two three‐atom thiocyanate (μ‐NCS) and the two anti,anti‐μ‐carboxylate bridges into infinite one‐dimensional polymeric anions, with coulombically interacting K+ counter‐ions with coordination number 7 constrained between the chains. The CuII atoms adopt a distorted tetragonal–bipyramidal coordination, with three donor atoms of the tridentate Schiff base and one N atom of the bridging μ‐NCS ligand in the basal plane. The first axial position is occupied by a thiocyanate S atom of a symmetry‐related μ‐NCS ligand at an apical distance of 2.9770 (8) Å, and the second position is occupied by an O atom of a bridging carboxylate group from an adjacent coordination unit at a distance of 2.639 (2) Å. 相似文献
15.
Yang Kim Brian W. Skelton Allan H. White 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m546-m548
In title anhydrous catena‐poly[[trans‐bis(ethane‐1,2‐diamine‐κ2N,N′)copper(II)]‐μ‐dithionato‐κ2O:O′], [Cu(S2O6)(C2H8N2)2]n or [{H2N(CH2)2NH2}2Cu(O·O2SSO2·O)]∞, successive Cu atoms are bridged by a single doubly charged dithionate group, forming a one‐dimensional polymer with inversion centres at the metal atoms and the mid‐point of the S—S bond [Cu—O = 2.5744 (15) Å]. In title (hydrated) trans‐diaquabis(propane‐1,3‐diamine‐κ2N,N′)copper(II) dithionate, [Cu(C3H10N2)2(H2O)2](S2O6) or [{H2N(CH2)3NH2}2Cu(OH2)2](S2O6), both ions have imposed 2/m symmetry. The `axial' anion components are displaced by a pair of water ligands [Cu—O = 2.439 (3) Å], the shorter Cu—O distance being compensated by the lengthened Cu—N distance [2.0443 (18), cf. 2.0100 (13) and 2.0122 (16) Å]. 相似文献
16.
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
17.
J. Zukerman‐Schpector Antonio Carlos Trindade P. O. Dunstan 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):763-765
In both title compounds, (acetylacetonato‐O,O′)bis(3‐cyanopyridine‐N)nickel(II), (I), and (acetylacetonato‐O,O′)bis(4‐cyanopyridine‐N)nickel(II), (II), both [Ni(C5H7O2)2(C6H4N2)2], the NiII atom, which is situated on a centre of symmetry, is octahedrally coordinated. Distances and angles for (I) and (II), respectively, are: Ni—O 2.009 (2)/2.016 (2) and 2.0110 (16)/2.0238 (18) Å, Ni—N 2.116 (3) and 2.179 (2) Å, O—Ni—O 91.86 (10) and 90.19 (7)°, and O—Ni—N 91.27 (11)/90.19 (11) and 89.65 (8)/90.79 (7)°. 相似文献
18.
Volodimir D. Vreshch Andrey B. Lysenko Harald Krautscheid Konstantin V. Domasevitch 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(9):m443-m447
In bis[1‐(3‐pyridyl)butane‐1,3‐dionato]copper(II) (the Cu atom occupies a centre of inversion), [Cu(C9H8NO2)2], (I), and bis[1‐(4‐pyridyl)butane‐1,3‐dionato]copper(II) methanol solvate, [Cu(C9H8NO2)2]·CH3OH, (II), the O,O′‐chelating diketonate ligands support square‐planar coordination of the metal ions [Cu—O = 1.948 (1)–1.965 (1) Å]. Weaker Cu⋯N interactions [2.405 (2)–2.499 (2) Å], at both axial sides, occur between symmetry‐related bis(1‐pyridylbutane‐1,3‐dionato)copper(II) molecules. This causes their self‐organization into two‐dimensional square‐grid frameworks, with uniform [6.48 Å for (I)] or alternating [4.72 and 6.66 Å for (II)] interlayer separations. Guest methanol molecules in (II) reside between the distal layers and form weak hydrogen bonds to coordinated O atoms [O⋯O = 3.018 (4) Å]. 相似文献
19.
Nobuo Okabe Yasunori Muranishi Mamiko Odoko 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(7):m345-m347
The crystal structures of the title complexes, namely trans‐bis(isoquinoline‐3‐carboxylato‐κ2N,O)bis(methanol‐κO)cobalt(II), [Co(C10H6NO2)2(CH3OH)2], and the corresponding nickel(II) and copper(II) complexes, [Ni(C10H6NO2)2(CH3OH)2] and [Cu(C10H6NO2)2(CH3OH)2], are isomorphous and contain metal ions at centres of inversion. The three compounds have the same distorted octahedral coordination geometry, and each metal ion is bonded by two quinoline N atoms, two carboxylate O atoms and two methanol O atoms. Two isoquinoline‐3‐carboxylate ligands lie in trans positions, forming the equatorial plane, and the two methanol ligands occupy the axial positions. The complex molecules are linked together by O—H⋯O hydrogen bonds between the methanol ligands and neighbouring carboxylate groups. 相似文献
20.
Jn Moncol Klaudia Jomov Mria Porubsk 《Acta Crystallographica. Section C, Structural Chemistry》2012,68(4):m85-m89
The title compounds, bis(μ‐3,5‐dichloro‐2‐oxidobenzoato)‐κ3O1,O2:O2;κ3O2:O1,O2‐bis[(3,5‐dichloro‐2‐hydroxybenzoic acid‐κO1)(1,10‐phenanthroline‐κ2N,N′)copper(II)], [Cu2(C7H2Cl2O3)2(C7H4Cl2O3)2(C12H8N2)2], (I), and bis(μ‐5‐chloro‐2‐oxidobenzoato)‐κ3O1,O2:O1;κ3O1:O1,O2‐bis[(5‐chloro‐2‐hydroxybenzoic acid‐κO1)(1,10‐phenanthroline‐κ2N,N′)copper(II)] ethanol monosolvate, [Cu2(C7H3ClO3)2(C7H5ClO3)2(C12H8N2)2]·C2H6O, (II), contain centrosymmetric dinuclear complex molecules in which Cu2+ cations are surrounded by a chelating 1,10‐phenanthroline ligand, a chelating 3,5‐dichloro‐2‐oxidobenzoate or 5‐chloro‐2‐oxidobenzoate anionic ligand and a monodentate 3,5‐dichloro‐2‐hydroxybenzoic acid or 5‐chloro‐2‐hydroxybenzoic acid ligand. The chelating benzoate ligand also bridges to the other Cu2+ ion in the molecule, but the O atom involved in the bridge is different in the two complexes, being the phenolate O atom in (I) and a carboxylate O atom in (II). The bridge completes a 4+1+1 axially elongated tetragonal–bipyramidal arrangement about each Cu2+ cation. The complex molecules of both compounds are linked into one‐dimensional supramolecular chains through O—H...O hydrogen bonds. 相似文献