共查询到20条相似文献,搜索用时 46 毫秒
1.
Jing Li Guang‐Sheng Guo Yong‐Ge Wei Ying Wang Hong‐You Guo 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(2):m87-m89
An organic–inorganic hybrid compound, poly[bis[(pyridine‐4‐carboxylato)zinc(II)]‐di‐μ3‐phosphato], [Zn2(C6H5NO2)2(HPO4)2], has been hydrothermally synthesized and structurally characterized. The crystal structure consists of two types of two‐dimensional layers of zinc hydrogenphosphate templated by protonated isonicotinate (ina) (or 4‐pyridinecarboxylic acid), which contain two crystallographically independent centrosymmetric [Zn2(ina)2(HPO4)2] dimers as basic building units. The layers are interconnected via hydrogen‐bonding and heterocyclic ring interactions. 相似文献
2.
Brian W. Skelton A. Fiona Waters Claire R. Whitaker Allan H. White 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(11):m435-m438
Both of the title compounds, catena‐poly[[[tetraaquamagnesium(I)]‐μ‐4,4′‐bipyridine‐κ2N:N′] diiodide bis(4,4′‐bipyridine) solvate], {[Mg(C10H8N2)(H2O)4]I2·2C10H8N2}n, (I), and catena‐poly[[[μ‐4,4′‐bipyridine‐bis[diiodobis(propan‐1‐ol)strontium(I)]]‐di‐μ‐4,4′‐bipyridine‐κ4N:N′] bis(4,4′‐bipyridine) solvate], {[Sr2I4(C10H8N2)3(C3H8O)4]·2C10H8N2}n, (II), are one‐dimensional polymers which are single‐ and double‐stranded, respectively, the metal atoms being linked by the 4,4′‐bipyridine moieties. The Mg complex, (I), is [cis‐{(H2O)4Mg(N‐4,4′‐bipyridine‐N′)(2/2)}](∞|∞)I2·4,4′‐bipyridine and Mg has a six‐coordinate quasi‐octahedral coordination environment. The Sr complex, (II), is isomorphous with its previously defined Ba counterpart [Kepert, Waters & White (1996). Aust. J. Chem. 49 , 117–135], being [(propan‐1‐ol)2I2Sr(N‐4,4′‐bipyridine‐N′)(3/2)](∞|∞)·4,4′‐bipyridine, with the I atoms trans‐axial in a seven‐coordinate pentagonal–bipyramidal Sr environment. 相似文献
3.
Hiroo Nakagawa Yoshiyuki Kani Masanobu Tsuchimoto Shigeru Ohba Hideaki Matsushima Tadashi Tokii 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(1):12-16
In the crystals of bis(pyridine‐N)tetrakis(μ‐trimethylsilylacetato‐O:O′)dicopper(II), [Cu2(C5H11O2Si)4(C5H5N)2], (I), the dinuclear CuII complexes have cage structures with Cu?Cu distances of 2.632 (1) and 2.635 (1) Å. In the crystals of bis(2‐methylpyridine‐N)tetrakis(μ‐trimethylsilylacetato‐O:O′)dicopper(II), [Cu2(C5H11O2Si)4(C6H7N)2], (II), bis(3‐methylpyridine‐N)tetrakis(μ‐trimethylsilylacetato‐O:O′)dicopper(II), [Cu2(C5H11O2Si)4(C6H7N)2], (III), and bis(quinoline‐N)tetrakis(μ‐trimethylsilylacetato‐O:O′)dicopper(II), [Cu2(C5H11O2Si)4(C9H7N)2], (IV), the centrosymmetric dinuclear CuII complexes have a cage structure with Cu?Cu distances of 2.664 (1), 2.638 (3) and 2.665 (1) Å, respectively. In the crystals of catena‐poly[tetrakis(μ‐trimethylsilylacetato‐O:O′)dicopper(II)], [Cu2(C5H11O2Si)4]n, (V), the dinuclear CuII units of a cage structure are linked by the cyclic Cu—O bonds at the apical positions to form a linear chain by use of a glide translation. 相似文献
4.
Peter Y. Zavalij Benjamin L. Burton Wayne E. Jones 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(6):m330-m333
Reaction of 2,2′‐bipyridine (bpy) and copper(II) nitrate in methanol results in two complexes, namely light‐blue bis(2,2′‐bipyridine)nitratocopper(II) nitrate methanol solvate, [Cu(NO3)(C10H8N2)2]NO3·CH3OH, (I), which is unstable in air, and the product of its decomposition, catena‐poly[[[bis(2,2′‐bipyridine)copper(II)]‐μ‐nitrato‐O:O′] nitrate], {[Cu(NO3)(C10H8N2)2]NO3}n, (II). The crystal structures of both compounds were determined from one crystal at room temperature. Later, the structure of (I) was redetermined at low temperature. In (I) and (II), the Cu atom is coordinated by two bpy and one or two nitrate ions, respectively. The second nitrate ion in (I), along with the methanol solvent molecule, is found in the outer coordination sphere, not bonded to Cu. The nitrate in (I) is chelating, while in (II), it bridges (bpy)2Cu complexes, forming a one‐dimensional chain structure. The Cu cation in (II) lies on a twofold axis and the uncoordinated NO3? ion is located close to a twofold axis and is therefore disordered. Compound (I) converts into (II) upon loss of solvent. 相似文献
5.
John Bacsa Hanhua Zhao Kim R. Dunbar 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m561-m564
Two new iron–oxo clusters, viz. di‐μ‐trifluoroacetato‐μ‐oxo‐bis[(2,2′‐bipyridine‐κ2N,N′)(trifluoroacetato‐κO)iron(III)], [Fe2O(CF3CO2)4(C10H8N2)2], and bis(2,2′‐bipyridine)di‐μ3‐oxo‐hexa‐μ‐trifluoroacetato‐bis(trifluoroacetato)tetrairon(III) trifluoroacetic acid solvate, [Fe4O2(CF3CO2)8(C10H8N2)2]·CF3CO2H, contain dinuclear and tetranuclear FeIII cores, respectively. The FeIII atoms are in distorted octahedral environments in both compounds and are linked by oxide and trifluoroacetate ions. The trifluoroacetate ions are either bridging (bidentate) or coordinated to the FeIII atoms via one O atom only. The fluorinated peripheries enhance the solubility of these compounds. Formal charges for all the Fe centers were assigned by summing valences of the chemical bonds to the FeIII atom. 相似文献
6.
Ana María Atria Ricardo Baggio María Teresa Garland Piedad Corts 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(7):m311-m314
The three title compounds, namely 4‐phenyl‐1H‐imidazolium hexa‐μ2‐chloro‐chloro‐μ4‐oxo‐tris(4‐phenyl‐1H‐imidazole‐κN1)tetracopper(II) monohydrate, (C9H9N2)[Cu4Cl7O(C9H8N2)3]·H2O, hexa‐μ2‐chloro‐μ4‐oxo‐tetrakis(pyridine N‐oxide‐κO)tetracopper(II), [Cu4Cl6O(C5H5NO)4], and hexa‐μ2‐chloro‐tetrakis(2‐methyl‐1H‐imidazole‐κN1)‐μ4‐oxo‐tetracopper(II) methanol trisolvate, [Cu4Cl6O(C4H6N2)4]·3CH4O, exhibit the same Cu4OCl6 framework, where the O atom at the centre of an almost regular tetrahedron bridges four copper cations at the corners. This group is in turn surrounded by a Cl6 octahedron, leading to a rather globular species. This special arrangement of the CuII cations results in a diversity of magnetic behaviours. 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.
M. J. Gonzlez Garmendia V. San Nacianceno J. M. Seco F. J. Zúiga 《Acta Crystallographica. Section C, Structural Chemistry》2009,65(11):m436-m439
The compounds poly[di‐μ4‐succinato‐μ2‐1,2‐di‐4‐pyridylethane‐dicopper(II)], [Cu2(C4H4O4)2(C12H12N2)]n, (I), and poly[di‐μ4‐succinato‐μ2‐1,3‐di‐4‐pyridylpropane‐dicopper(II)], [Cu2(C4H4O4)2(C13H14N2)]n, (II), exhibit polymeric structures with the dicopper units doubly bridged by bis‐bidentate succinate groups and crosslinked by the separator bis(pyridyl) molecules. In (I), the molecule exhibits a centre of inversion located midway between the core Cu‐dimer atoms and another that relates half of the bis(pyridyl)ethane ligand to the other half. Compound (II) has a similar molecular packing but with a doubled lattice constant and noncentrosymmetric core units. An antiferromagnetic interaction due to the dinuclear copper units was deduced from magnetic subsceptibility measurements, and spin triplet signals were detected in the electron paramagnetic resonance spectra for both compounds. 相似文献
9.
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
10.
Ivan Poto
k Michal Dunaj‐Jur
o Duan Miklo Werner Massa Lothar Jger 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(4):363-365
In the title compound, [Cu(C2N3)(C10H8N2)2]BF4, the CuII atom shows distorted trigonal‐bipyramidal geometry, with the dicyanamido ligand in the equatorial plane. The two out‐of‐plane Cu—N bond lengths to bipyridine are 2.006 (3) and 1.998 (3) Å, whereas the in‐plane Cu—N distances are 2.142 (3) and 2.043 (3) Å to the bipyridine, and 2.015 (3) Å to the dicyanamide. 相似文献
11.
Lan Yang Changwen Hu Haruo Naruke Toshihiro Yamase 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(7):799-801
The title compound, poly[[[diaqua(μ‐4,4′‐bipyridyl)dinickel(II)]‐bis(μ‐4,4′‐bipyridyl)‐di‐μ‐hexaoxodivanadate(2?)] 2.5‐hydrate], [Ni2(V2O6)2(C10H8N2)3(H2O)2]·2.5H2O, has been prepared hydrothermally and characterized by elemental analyses, IR spectroscopy and single‐crystal X‐ray diffraction. The structure consists of [V2O6], [Ni(4,4′‐bipy)4O2] and [Ni(H2O)2(4,4′‐bipy)2O2] polyhedra, and water of crystallization. The Ni atoms and one bipyridyl group lie on centres of symmetry. 相似文献
12.
Romain Gautier Jean‐Franois Colin Eric Le Fur 《Acta Crystallographica. Section C, Structural Chemistry》2010,66(2):i12-i15
Dicaesium divanadium trioxide phosphate hydrogenphosphate, Cs2V2O3(PO4)(HPO4), (I), and dicaesium tris[oxidovanadate(IV)] hydrogenphosphate dihydrate, Cs2[(VO)3(HPO4)4(H2O)]·H2O, (II), crystallize in the monoclinic system with all atoms in general positions. The structures of the two compounds are built up from VO6 octahedra and PO4 tetrahedra. In (I), infinite chains of corner‐sharing VO6 octahedra are connected to V2O10 dimers by phosphate and hydrogenphosphate groups, while in (II) three vanadium octahedra share vertices leading to V3O15(H2O) trimers separated by hydrogenphosphate groups. Both structures show three‐dimensional frameworks with tunnels in which Cs+ cations are located. 相似文献
13.
Jin‐Yu Sun Zhen Zhao Yong‐Chao Ma Miao‐Li Zhu Xiang‐Dong Zhang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(1):m4-m6
The crystal structure of the title compound, μ‐2‐hydroxybutanedioato‐1κ2O4,O4′:2κ3O1,O2,O4‐nitrato‐2κO‐tris(1,10‐phenanthroline)‐1κ4N,N′;2κ2N,N′‐dicopper(II) nitrate tetrahydrate, [Cu2(C4H3O5)(NO3)(C12H8N2)3](NO3)·4H2O, contains an unsymmetrical dinuclear copper complex with Cu(phen)2 and Cu(phen)(NO3) moieties (phen is 1,10‐phenanthroline) bridged by a malate (2‐hydroxybutanedioate) ligand, which acts as a double‐bridging and tetradentate ligand. As a result of this double‐bridging action, especially the direct coordination of the O atom of one carboxylate group of malate to the two Cu atoms, the Cu⋯Cu distance is only 4.199 (1) Å and the two phen planes are roughly parallel [the shortest interplanar distance is 3.28 (1) Å], exhibiting an obvious intramolecular π–π stacking interaction. 相似文献
14.
Juraj ernk Khalil A. Abboud 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(3):m167-m170
Partial reduction of the CuII ions in the aqueous system CuII–en–[Ni(CN)4]2? (1/1/1) (en is 1,2‐diaminoethane) yields a novel heterobimetallic mixed‐valence compound, poly[[aquabis(1,2‐diaminoethane)copper(II)] [hexa‐μ‐cyano‐tetracyanobis(1,2‐diaminoethane)tricopper(I,II)dinickel(II)] dihydrate], [Cu(C2H8N2)2(H2O)][Ni2Cu3(CN)10(C2H8N2)2]·2H2O or [Cu(en)2(H2O)][Cu(en)2Ni2Cu2(CN)10]·2H2O. The structure is formed by a negatively charged two‐dimensional array of the cyano complex [Cu(en)2Ni2Cu2(CN)10]n2n?, [Cu(en)2(H2O)]2+ complex cations and water molecules of crystallization. These last are involved in a complicated hydrogen‐bonding system. The cyano groups act as terminal, μ2‐bridging or μ3‐bridging ligands. 相似文献
15.
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
16.
Zhan Shi Ying Hou Jia Hua Guanghua Li Shouhua Feng 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(8):m337-m338
The solvothermal reaction of zinc(II) acetate with 1,3,5‐benzenetricarboxylic acid and 4,4′‐bipyridine in 1‐butanol and acetic acid solution gives the title complex, [Zn3(C9H3O6)2(C10H8N2)(H2O)2]n. There are two different coordination environments for the Zn atom, namely ZnNO2(H2O) and ZnO4; in the latter case, the Zn atom lies on a twofold symmetry axis. Carboxylate‐bridged Zn3(O2C)6 clusters are connected through 1,3,5‐benzenetricarboxylate and 4,4′‐bipyridine ligands (which lie about inversion centers), yielding a three‐dimensional framework. 相似文献
17.
Ilia A. Guzei Curtis J. Czerwinski 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(12):m615-m617
The title compounds, [Cr(C12H10)(CO)3] and [Cr2(C12H10)(CO)6], serve as a fundamental standard of comparison for other mono‐ and polysubstituted (η6‐biphenyl)tricarbonylchromium compounds. (η6‐Biphenyl)tricarbonylchromium has a typical piano‐stool coordination about the Cr center, and the dihedral angle between the planes of the phenyl rings is 23.55 (5)°. The corresponding angle in μ‐(η6:η6)‐biphenyl‐bis(tricarbonylchromium) is 0° because the molecule occupies a crystallographic inversion center; the Cr atoms reside on opposite sides of the biphenyl ligand. Density functional theory and natural bonding orbital theory analyses were used to scrutinize the geometry of these and closely related compounds to explain important structural features. 相似文献
18.
Yong Nie Chun‐Hua Hu Xue Li Wei Yong Jian‐Min Dou Jie Sun Ruo‐Shui Jin Pei‐Ju Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(8):897-899
Each of the title compounds, 8‐methoxy‐7,7‐bis(triphenylphosphine‐P)‐8,9:10,11‐di‐μH‐7‐platina‐nido‐undecaborane dichloromethane hemisolvate, [Pt(CH14B10O)(C18H15P)2]·0.5CH2Cl2, (I), 8‐isopropoxy‐7,7‐bis(triphenylphosphine‐P)‐8,9:10,11‐di‐μH‐7‐platina‐nido‐undecaborane dichloromethane solvate, [Pt(C3H18B10O)(C18H15P)2]·CH2Cl2, (II), and 9‐isopropoxy‐7,7‐bis(triphenylphosphine‐P)‐8,9:10,11‐di‐μH‐7‐platina‐nido‐undecaborane dichloromethane solvate, [Pt(C3H18B10O)(C18H15P)2]·CH2Cl2, (III), has an 11‐vertex nido polyhedral skeleton, with the 7‐platinum centre ligating to two exo‐polyhedral PPh3 groups and an alkoxy‐substituted polyhedral borane ligand. Compounds (II) and (III) are isomers. The Pt—B distances are in the range 2.214 (7)–2.303 (7) Å for (I), 2.178 (16)–2.326 (16) Å for (II) and 2.205 (6)–2.327 (6) Å for (III). 相似文献
19.
Wesley A. Henderson Victor G. Young Neil R. Brooks William H. Smyrl 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(10):m501-m503
The title compounds, poly[[[bis(2‐methoxyethyl) ether]lithium(I)]‐di‐μ3‐trifluoromethanesulfonato‐lithium(I)], [Li2(CF3SO3)2(C6H14O3)]n, and poly[[[bis(2‐methoxyethyl) ether]lithium(I)]‐di‐μ3‐trifluoroacetato‐dilithium(I)‐μ3‐trifluoroacetato], [Li3(C2F3O2)3(C6H14O3)]n, consist of one‐dimensional polymer chains. Both structures contain five‐coordinate Li+ cations coordinated by a tridentate diglyme [bis(2‐methoxyethyl) ether] molecule and two O atoms, each from separate anions. In both structures, the [Li(diglyme)X2]? (X is CF3SO3 or CF3CO2) fragments are further connected by other Li+ cations and anions, creating one‐dimensional chains. These connecting Li+ cations are coordinated by four separate anions in both compounds. The CF3SO3? and CF3CO2? anions, however, adopt different forms of cation coordination, resulting in differences in the connectivity of the structures and solvate stoichiometries. 相似文献
20.
Xia Li Ying‐Quan Zou Hai‐Bin Song 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(3):m110-m111
Each La3+ ion in the title complex, tetra‐μ‐2‐fluorobenzoato‐κ10O:O′;O:O,O′;O:O′;O,O′:O′‐bis[aqua(4,4′‐bipyridine‐κN)(2‐fluorobenzoato‐κO)lanthanum(II)], [La(C7H4FO2)6(C10H8N2)2(H2O)2], is coordinated by six O atoms from the carboxylate groups of five 2‐fluorobenzoate ligands, one O atom from a water molecule and one N atom from a 4,4′‐bipyridine molecule, thus forming a dimeric molecule. An infinite one‐dimensional dimeric supramolecular chain is formed via intermolecular hydrogen bonds. 相似文献