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1.
Amen Allah Hajem Basma Trojette Ahmed Driss Tahar Jouini 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):793-794
The title compound, N,N,N′,N′‐tetramethylethylenediammonium diaqua(arsenate)(hydrogen arsenate)dizinc(II), (C6H18N2)0.5[Zn2(AsO4)(HAsO4)(H2O)2], is a new zincoarsenate obtained by hydrothermal synthesis. The structure consists of infinite two‐dimensional anionic layers alternating with planes containing centrosymmetric organic diprotonated template N,N,N′,N′‐tetramethylethylenediammonium cations, [H3NC6H12NH3]2+. The latter are interconnected to the framework through hydrogen bonds. 相似文献
2.
Jaromír Marek Pavel Kopel Zdenk Trvní
ek 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m558-m560
In the crystal structure of the title compound, [N,N′‐bis(3‐aminopropyl)ethylenediamine‐κ4N,N′,N′′,N′′′][1,3,5‐triazine‐2,4,6(1H,3H,5H)‐trithionato(2−)‐κ2N,S]zinc(II) ethanol solvate, [Zn(C8H22N4)2(C3HN3S3)]·C2H6O, the ZnII atom is octahedrally coordinated by four N atoms [Zn—N = 2.104 (2)–2.203 (2) Å] of a tetradentate N‐donor N,N′‐bis(3‐aminopropyl)ethylenediamine (bapen) ligand and by two S and N atoms [Zn—S = 2.5700 (7) Å and Zn—N = 2.313 (2) Å] of a trithiocyanurate(2−) (ttcH2−) dianion bonded as a bidentate ligand in a cis configuration. The crystal structure of the compound is stabilized by a network of hydrogen bonds. 相似文献
3.
Hong‐Chang Liang Marcel M. Hetu Kraig A. Wheeler Lev N. Zakharov Arnold L. Rheingold 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m519-m521
In the title compound, [Zn(C2H3N)(C16H21N3O)](ClO4)2·H2O, the ZnII ion is coordinated by two pyridyl N atoms, one amine N atom, and an ethanol O atom from the N,N′,N′′,O‐tetradentate 2‐[bis(2‐pyridylethyl)amino]ethanol donor ligand. The fifth coordination site is filled by an acetonitrile N atom, and there is one solvent water molecule in the asymmetric unit. The 2+ charge of the cationic portion of the complex is balanced by two perchlorate counter‐anions. 相似文献
4.
Paul G. Jene Christopher G. Pernin James A. Ibers 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(6):730-734
The X‐ray structure of 1,2,4,5‐tetrahydroxybenzene (benzene‐1,2,4,5‐tetrol) monohydrate, C6H6O4·H2O, (I), reveals columns of 1,2,4,5‐tetrahydroxybenzene parallel to the b axis that are separated by 3.364 (12) and 3.453 (11) Å. Molecules in adjacent columns are tilted relative to each other by 27.78 (8)°. Water molecules fill the channels between the columns and are involved in hydrogen‐bonding interactions with the 1,2,4,5‐tetrahydroxybenzene molecules. The crystal structure of the adduct 1,2,4,5‐tetrahydroxybenzene–2,5‐dihydroxy‐1,4‐benzoquinone (1/1), C6H6O4·C6H4O4, (II), reveals alternating molecules of 1,2,4,5‐tetrahydroxybenzene and 2,5‐dihydroxy‐1,4‐benzoquinone (both lying on inversion centers), and a zigzag hydrogen‐bonded network connecting molecules in three dimensions. For compound (II), the conventional X‐ray determination, (IIa), is in very good agreement with the synchrotron X‐ray determination, (IIb). When differences in data collection temperatures are taken into account, even the displacement parameters are in very good agreement. 相似文献
5.
Ahmet Bulut brahim Uar Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(6):m266-m268
In the crystal structure of the synthetically prepared title compound, [Cu(C14H12N2)2](C4HO4)·0.5H2O or [Cu(dmphen)2](HSq)·0.5H2O (dmphen is 2,9‐dimethyl‐1,10‐phenanthroline or neocuproine and HSq is hydrogen squarate), the CuI centre has distorted tetrahedral coordination geometry comprised of four N atoms from two bidentate dmphen ligands. The squarate monoanions form a ten‐membered dimer, graph set R22(10), linked by two strong intermolecular O—H⋯O hydrogen bonds. These squarate dimers are linked into chains that propagate along the [100] direction. An extensive three‐dimensional network of C—H⋯O hydrogen bonds and π–π interactions is responsible for stabilization of the crystal structure. 相似文献
6.
Neil M. Boag Kathleen M. Coward Anthony C. Jones Martyn E. Pemble J. Robin Thompson 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(12):1438-1439
The hydrolysis product [Ga2(C3H7)4(OH)2]·C14H32N4, derived from the tetrakis(triisopropylgallium)–1,4,8,11‐tetramethyl‐1,4,8,11‐tetraazacyclotetradecane (1/1) adduct, consists of a centrosymmetric [iPr2Ga(μ‐OH)]2 unit hydrogen bonded through the hydroxyl group to a nitrogen on an adjacent centrosymmetric 1,4,8,11‐tetramethyl‐1,4,8,11‐tetraazacyclotetradecane molecule, resulting in the generation of a molecular chain through the crystal. 相似文献
7.
Yong Cui Jiutong Chen Gang Chen Jing Ren Weichao Yu Yitai Qian 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(4):349-351
A novel centrosymmetric chair‐like dimer, bis(2,2′‐bipyridine)‐1κ2N,N′;3κ2N,N′‐tetra‐μ‐chloro‐1:2κ2Cl;2:3κ2Cl;3:4κ2Cl;1:4κ2Cl‐tetracopper(I), [Cu4Cl4(C10H8N2)2], has been solvothermally synthesized and structurally characterized. The complex self‐assembles into a three‐dimensional network via C—H?Cl hydrogen bonds, π–π stacking and weak Cu?Cl electrostatic interactions. 相似文献
8.
Bernardo Masci Stefano Saccheo Massimiliano Fonsi Maurizio Varrone Marco Finelli Martine Nierlich Pierre Thury 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(8):978-981
Three methoxy‐ether and one methoxy‐ether/crown‐ether derivatives of p‐tert‐butyltetrahomodioxa‐ and p‐R‐octahomotetraoxacalix[4]arenes (R = methyl, tert‐butyl, H) have been investigated. The first three compounds, 7,15,21,27‐tetra‐tert‐butyl‐29,30,31,32‐tetramethoxy‐3,11‐dioxapentacyclo[23.3.1.15,9.113,17.119,23]ditriaconta‐1(29),5,7,9(30),13,15,‐17(31),19,21,23(32),25,27‐dodecaene, C50H68O6, 33,34,35,36‐tetramethoxy‐7,15,23,31‐tetramethyl‐3,11,19,27‐tetraoxapentacyclo[27.3.1.15,9.113,17.121,25]hexatriaconta‐1(33),5,7,9(34),13,15,17(35),21,23,25(36),29,31‐dodecaene, C40H48O8, and 7,23‐di‐tert‐butyl‐33,34,35,36‐tetramethoxy‐3,11,19,27‐tetraoxapentacyclo[27.3.1.15,9.113,17.121,25]hexatriaconta‐1(33),5,7,9(34),13,15,17(35),‐ 21,23,25(36),29,31‐dodecaene, C44H56O8, in the partial‐cone or 1,2‐alternate conformations, present the common feature of methoxy‐ether self‐inclusion, while the fourth, 42,43‐dimethoxy‐7,15,23,31‐tetramethyl‐3,11,19,27,34,37,40‐heptaoxahexacyclo[15.15.9.15,9.121,25.013,41.029,33]tritetraconta‐5(42),6,8,13(41),14,16,21(43),22,24,29(33),30,32‐dodecaene, C42H50O9, adopts the 1,3‐alternate conformation owing to the presence of a 1,3‐polyether chain. 相似文献
9.
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
10.
Zun‐Ting Zhang Xin‐Li Cheng Yun He 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(10):m484-m487
In methylaminium 4′,7‐dihydroxyisoflavone‐3′‐sulfonate dihydrate, CH6N+·C15H9O7S−·2H2O, 11 hydrogen bonds exist between the methylaminium cations, the isoflavone‐3′‐sulfonate anions and the solvent water molecules. In hexaaquairon(II) bis(4′,7‐diethoxyisoflavone‐3′‐sulfonate) tetrahydrate, [Fe(H2O)6](C19H17O7S)2·4H2O, 12 hydrogen bonds exist between the centrosymmetric [Fe(H2O)6]2+ cation, the isoflavone‐3′‐sulfonate anions and the solvent water molecules. Additional π–π stacking interactions generate three‐dimensional supramolecular structures in both compounds. 相似文献
11.
Arnold A. Feldmann Kai Schmengler Klaus Laue Stefan Marose Kristin Kirschbaum Olaf Conrad Dean M. Giolando 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(11):e531-e531
The crystal structure of the title compound, [Me2NHC2H4NHMe2][SePh]2 or C6H18N22+·2C6H5Se?, reveals hydrogen bonding between the benzeneselenolate anions and the tetramethylethylenediammonium cations. The asymmetric unit contains one formula unit of the title compound. The two Se?H distances are 2.22 (4) and 2.34 (4) Å. 相似文献
12.
Burkhard Schulz Julia Bricks Yan‐Qin Li Ute Resch‐Genger Günter Reck 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(6):o402-o404
1‐Methyl‐2‐[4‐phenyl‐6‐(pyridinium‐2‐yl)pyridin‐2‐yl]pyridinium diperchlorate, C22H19N32+·2ClO4−, (I), and 2‐[4‐(methoxyphenyl)‐2,2′‐bipyridin‐6‐yl]‐1‐methylpyridinium iodide, C23H20N3O+·I−, (II), both crystallize in the monoclinic space group P21/c. In contrast with the monocharged molecule of (II), the doubly charged molecule of (I) contains an additional protonated pyridine ring. One of the two perchlorate counter‐anions of (I) interacts with the cation of (I) via an N—H⋯O hydrogen bond. In (II), two molecules related by a centre of symmetry are connected by weak π–π interactions, forming dimers in the crystal structure. 相似文献
13.
Jan W. Bats Andreas Rivas Nass A. Stephen K. Hashmi 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):814-817
The crystal structure of the title compound, (2,2′‐bipyridyl‐κ2N,N′)(tetraallyl 3,3,3′,3′‐tetramethyl‐1,1′‐bicyclopropane‐1,1′,2,2′‐tetracarboxylato‐κ2C2,C2′)palladium(II), [Pd(C26H32O8)(C10H8N2)], is disordered above 194 K. A doubling of the unit cell is observed on cooling. The structure at 143 K contains two ordered molecules related by a pseudo‐translation vector of approximately (0.44,0.00,0.50) or a pseudo‐inversion center at approximately (0.22,0.00,0.25). Weak intermolecular C—H?O interactions are enhanced in the low‐temperature structure. 相似文献
14.
Ulrich Flrke Sonja Herres‐Pawlis Andreas Heuwing Adam Neuba Oliver Seewald Gerald Henkel 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(6):m234-m237
Subject to packing with different anions, the title cation undergoes various conformational changes with significantly different N—C—C—C torsion angles, as well as different angles between the NCN2 guanidine planes. The 2,2‐(propane‐1,3‐diyl)bis(1,1,3,3‐tetramethylguanidinium) salts reported here, viz. the dibromide, C13H32N62+·2Br−, the tetraphenylborate chloride, C13H32N62+·C24H20B−·Cl−, the tetrachloromercurate, (C13H32N6)[HgCl4], and the bis(trifluoromethanesulfonate), C13H32N62+·2CF3SO3−, are dominated by strong intermolecular N—H⋯X hydrogen bonds, which form different packing patterns. 相似文献
15.
Yoshiki Ohgo Saburo Neya Takahisa Ikeue Noriaki Funasaki Mikio Nakamura 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(9):1046-1047
The X‐ray crystallographic analysis of the title complex, chloro[3,10,13,20‐tetraethyl‐4,9,14,19‐tetramethylpentacyclo[16.2.1.12,5.18,11.112,15]tetracosa‐2,4,6,8(23),9,12,14,16,18(21),19‐decaene]iron(III) chloroform solvate, [Fe(C33H37N4)Cl]·CHCl3, reveals a twisted macrocyclic framework with a slightly distorted rectangular pyramidal core, where the deviation of the central FeIII atom from the least‐squares plane of the C20N4 core is 0.594 (1) Å. Some important bond distances are as follows: Fe—N 2.019 (3), 2.026 (3), 2.028 (3) and 2.034 (3) Å; Fe—Cl 2.232 (1) Å. 相似文献
16.
Philip. J. Davies Stephen F. Lincoln Christopher B. Smith Max R. Taylor Kevin P. Wainwright Kia S. Wallwork 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(1):28-30
Crystallization of [Cd(S‐thpc12)](ClO4)2·H2O {S‐thpc12 is 1,4,7,10‐tetrakis[(S)‐2‐hydroxypropyl]‐1,4,7,10‐tetraazacyclo‐dodecane} in the presence of sodium p‐nitrophenolate forms the title complex, [Cd(C20H44N4O4)](C6H4NO3)(ClO4)·H2O, in which p‐nitrophenolate and water separately hydrogen bond to a different pair of cis‐related pendant hydroxyl groups which, together with the four N atoms, are themselves bound to CdII in an approximately square antiprismatic arrangement. The diastereoselectivity of the complex‐forming process is apparent from the fact that both different disymmetric cations in the asymmetric unit have the same Δ helicity. 相似文献
17.
Anthony Linden Andreas Gebert Heinz Heimgartner 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(6):764-766
The tetrathiane ring of the title compound, C26H16S4, has a chair conformation and the molecule has approximate C2 symmetry. Each of the two fluorene ring systems is virtually planar, with the ring planes intersecting at an angle of 67.58 (5)°. This novel compound has been formed as a side product from the treatment of 9H‐fluorene‐9‐thione with methyl N‐[(benzylidene)phenyl]glycinate in the presence of LiBr and 1,6‐diazabicyclo[5.4.0]undecane. 相似文献
18.
Marina S. Fonari Yurii A. Simonov Yurii M. Chumakov Gabriele Bocelli Eduard V. Ganin Vladimir O. Gelmboldt 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(5):m168-m170
X‐ray data were obtained for the monoclinic polymorph of rac‐5,7,7,12,12,14‐hexamethyl‐1,4,8,11‐tetraazoniacyclotetradecane bis(hexafluorogermanate) tetrahydrate, (C16H40N4)[GeF6]2·4H2O. The tetraaza‐macrocyclic cations lie across inversion centers in space group P21/c. Water molecules and [GeF6]2− anions form zigzag chains, which alternate in a three‐dimensional network with the macrocyclic cations. The structure is sustained by multiple hydrogen bonds. 相似文献
19.
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
20.
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