共查询到20条相似文献,搜索用时 15 毫秒
1.
Dan Jin De‐Chun Zhang 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(11):o657-o659
In the title compound, C15H13N2+·C24H20B−, the pyridyl ring of the cation makes a dihedral angle of 1.6° with the benzene ring. Each is rotated in the same direction with respect to the central –C—CH=CH—C– linkage, by 3.8 and 5.3°, respectively. The anions have a slightly distorted tetrahedral geometry. Molecular packing analysis was carried out using the packing energy portioning scheme in the program OPEC. Around each anion in the crystal structure there are eight anions, which interact with the central anion through C—H⋯π interactions. The cations are hydrogen bonded in a head‐to‐tail fashion, forming chains along [10]. 相似文献
2.
Graeme J. Gainsford Cornelis Lensink Joanne B. Hart Andrew Falshaw 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(11):1396-1398
The title compound, 3,4,5,6‐tetramethoxycyclohexane‐1,2‐diyldioxybis(methyldiphenylphosphonium) diiodide, C36H44O6P22+·2I?, was prepared from a New Zealand natural product, d ‐chiro‐inositol, in order to develop new catalytic metal complexes. The inositol ring retains its usual chair conformation with only minor perturbations caused by the bound diphenylmethylphosphines. Crystal‐packing forces are provided by C—H?I cation–anion interactions. 相似文献
3.
Samuel Sakwa Kraig A. Wheeler 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(6):o332-o334
The title compounds, bis(ammonium) naphthalene‐1,5‐disulfonate, 2NH4+·C10H6O6S22−, and bis[1‐(hydroxymethyl)‐3,5,7‐triaza‐1‐azoniatricyclo[3.3.1.13,7]decane] 1,5‐naphthalenedisulfonate, 2C7H15N4O+·C10H6O6S22−, were prepared from the acid‐promoted reaction of hexamethylenetetramine. In both structures, the disulfonate anion is positioned on an inversion center, with each sulfonate group contributing to the supramolecular assemblies via hydrogen bonds. The ammonium cations are linked to sulfonate groups by four distinct N+—H⃛−O—S contacts [N⃛O = 2.846 (2)–2.898 (2) Å and N—H⃛O = 160 (2)–175 (2)°], whereas the 1‐(hydroxymethyl)‐3,5,7‐triaza‐1‐azoniatricyclo[3.3.1.13,7]decane cations form one O—H⃛−O—S [O⃛O = 2.628 (2) Å and O—H⃛O = 176°] and three C—H⃛−O—S [C⃛O = 3.359 (2)–3.380 (2) Å and C—H⃛O = 148–155°] interactions to neighboring sulfonate groups. 相似文献
4.
Udo Beckmann Sally Brooker 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):o653-o655
The structure of the cocrystallized 1:1 adduct of (S,S)‐4‐amino‐3,5‐bis(1‐hydroxyethyl)‐1,2,4‐triazole and (S,S)‐1,2‐bis(2‐hydroxypropionyl)hydrazine, C6H12N4O2·C6H12N2O4, has tetragonal symmetry. All eight O‐ and N‐bound H atoms are involved in intermolecular hydrogen bonds, resulting in infinite zigzag chains of the triazole molecules, with the hydrazine molecules filling the gaps between the chains and completing a three‐dimensional hydrogen‐bonded array. 相似文献
5.
Graham King Philip Coppens Milan Gembicky 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(7):m329-m332
Two new salts of the cation [CuI(dmp)2]+ (dmp is 2,9‐dimethyl‐1,10‐phenanthroline, C14H12N2), namely bis[bis(2,9‐dimethyl‐1,10‐phenanthroline‐κ2N,N′)copper(I)] bis(hexafluorophosphate) hemi[bis(4‐pyridylmethylidene)hydrazine] acetonitrile solvate, [Cu(C14H12N2)2]2(PF6)2·0.5C12H10N4·C2H3N or [Cu(dmp)2]2(PF6)2·0.5(bpmh)·CH3CN [bpmh is bis(4‐pyridylmethylidene)hydrazine, C12H10N4], (I), and bis(2,9‐dimethyl‐1,10‐phenanthroline‐κ2N,N′)copper(I) dicyanamide, [Cu(C14H12N2)2](C2N3) or [Cu(dmp)2][N(CN)2], (II), are reported. The Cu—N bond lengths and the distortion from idealized tetrahedral geometry of the dmp ligands are discussed and compared with related compounds. The bpmh molecule in (I) is π–π stacked with a dmp ligand at a distance of 3.4 Å, rather than coordinated to the metal atom. The molecule lies across an inversion center in the crystal. In (II), the normally coordinated dicyanamide molecule is present as an uncoordinated counter‐ion. 相似文献
6.
Gnana Sutha Siluvai Babu Varghese Narasimha N. Murthy 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(6):o380-o382
In the title salt, 1,3‐bis{[2‐(2‐pyridinio)ethyl][2‐(2‐pyridyl)ethyl]amino}benzene diperchlorate dihydrate, C34H38N62+·2ClO4−·2H2O, the cation contains two ethylpyridyl and two ethylpyridinium pendant pairs anchored to the two N atoms of 1,3‐phenylenediamine. The pyridyl and pyridinium N atoms are flanked by a molecule of water through strong hydrogen‐bonding interactions [N—H⋯O = 2.762 (6) and 2.758 (6) Å, and O—H⋯N = 2.834 (6) and 2.839 (6) Å]. The water molecules have weak hydrogen‐bonding interactions with the perchlorate anions as well. One of the perchlorate anions is severely disordered. 相似文献
7.
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
8.
Tsonko Kolev Michael Spiteller William S. Sheldrick Heike Mayer‐Figge 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(5):o299-o300
Cations and anions of the title compound {systematic name: 1‐[4‐(aminocarbonyl)butyl]guanidinium bis(hydrogensquarate)}, C6H17N5O2+·2C4HO4−, are connected into a three‐dimensional network by intermolecular N—H⋯O hydrogen bonds between the l ‐argininamidium ammonium, amide and guanidinium functions and the hydrogensquarate carbonyl O atoms. The independent hydrogensquarate monoanions are linked into dimers by pairs of O—H⋯O′ hydrogen bonds. 相似文献
9.
Janet M. S. Skakle Marcus V. D. Rangel e Silva James L. Wardell Solange M. S. V. Wardell 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(10):m413-m415
The title compound, [Cu(C2H3N)2(C10H24N4)](C32H12BF24)2·0.31H2O, crystallizes as an ionic species with no interactions between the ions. The [CuII(cyclam)(MeCN)2]2+ dication (cyclam is 1,4,8,11‐tetraazatetradecane), located on a 2/m symmetry site, forms as a distorted octahedral species with four Cu—Ncyclam bonds of 2.013 (2) Å and two C—NMeCN bonds of 2.499 (4) Å. The [B{C6H3(CF3)‐3,5}4]− anion, located on a twofold axis, is a distorted octahedral species. A small amount of water is present, occupying sites between columns of ions. 相似文献
10.
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
11.
Rahul Banerjee Binoy K. Saha Gautam R. Desiraju 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(6):o346-o349
Hydrazinium saccharinate, N2H5+·C7H4NO3S−, crystallizes in a 1:1 ratio, while ethylenediaminium bis(saccharinate), C2H10N22+·2C7H4NO3S−, and butane‐1,4‐diaminium bis(saccharinate), C4H14N22+·2C7H4NO3S−, form in a 1:2 cation–anion stoichiometry. The structures contain many strong hydrogen bonds of the N+—H⋯N−, N+—H⋯O, N—H⋯O and N—H⋯N types, with auxiliary C—H⋯O interactions. 相似文献
12.
Gerhard Baum Alexander J. Blake Dieter Fenske Peter Hubberstey Carine Julio Matthew A. Withersby 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(11):m542-m544
Molecules of the title compound, [Cu(C2H3N)(C11H9N5)(C6H6N2O)](BF4)2·2C2H3N, comprise (acetonitrile)[2,6‐bis(pyrazol‐1‐yl)pyridine](isonicotinamide)copper(II) cations, tetrafluoroborate anions and lattice acetonitrile molecules. The cations have distorted square‐pyramidal geometries in which the N3‐donor, viz. 2,6‐bis(pyrazol‐1‐yl)pyridine, and the N‐donor, viz. the isonicotinamide ligand, occupy the four basal positions, with the coordinated acetonitrile N‐donor atom occupying the apical position. Pairs of cations are linked by N—H?F hydrogen bonds through tetrafluoroborate anions, forming centrosymmetric dimers, which are further linked by C—H?O hydrogen bonds into two‐dimensional undulating sheets, three of which interpenetrate to generate a two‐dimensional network. 相似文献
13.
Choudhury M. Zakaria George Ferguson Alan J. Lough Christopher Glidewell 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(1):m1-m4
In the adduct ferrocene‐1,1′‐diylbis(diphenylmethanol)–1,2‐bis(4‐pyridyl)ethene (1/1), [Fe(C18H15O)2]·C12H10N2, there is an intramolecular O—H?O hydrogen bond in the ferrocenediol component and a single O—H?N hydrogen bond linking the diol to the diamine, which is disordered over two sets of sites, so forming a finite monomeric adduct. In the adduct ferrocene‐1,1′‐diylbis(diphenylmethanol)–1,6‐diaminohexane (2/1), 2[Fe(C18H15O)2]·C6H16N2, the amine lies across a centre of inversion in space group P. There is an intramolecular O—H?O hydrogen bond in the ferrocenediol, and the molecular components are linked by O—H?N and N—H?O hydrogen bonds, one of each type, into a C(13)[R(12)] chain of rings. 相似文献
14.
Nada Kouti‐Hulita Miroslav
egarac 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(3):o171-o173
In the crystal structure of (R)‐N,N‐diisopropyl‐3‐(2‐hydroxy‐5‐methylphenyl)‐3‐phenylpropylaminium (2R,3R)‐hydrogen tartrate, C22H32NO+·C4H5O6−, the hydrogen tartrate anions are linked by O—H⋯O hydrogen bonds to form helical chains built from (9) rings. These chains are linked by the tolterodine molecules via N—H⋯O and O—H⋯O hydrogen bonds to form separate sheets parallel to the (101) plane. 相似文献
15.
Robert T. Stibrany Harvey J. Schugar Joseph A. Potenza 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(6):o354-o357
Two of the title compounds, namely (E)‐1,2‐bis(1‐methylbenzimidazol‐2‐yl)ethene, C18H16N4, (Ib), and (E)‐1,2‐bis(1‐ethylbenzimidazol‐2‐yl)ethene, C20H20N4, (Ic), consist of centrosymmetric trans‐bis(1‐alkylbenzimidazol‐2‐yl)ethene molecules, while 3‐ethyl‐2‐[(E)‐2‐(1‐ethylbenzimidazol‐2‐yl)ethenyl]benzimidazol‐1‐ium perchlorate, C20H21N4+·ClO4−, (II), contains the monoprotonated analogue of compound (Ic). In the three structures, the benzimidazole and benzimidazolium moieties are essentially planar; the geometric parameters for the ethene linkages and their bonds to the aromatic groups are consistent with double and single bonds, respectively, implying little, if any, conjugation of the central C=C bonds with the nitrogen‐containing rings. The C—N bond lengths in the N=C—N part of the benzimidazole groups differ and are consistent with localized imine C=N and amine C—N linkages in (Ib) and (Ic); in contrast, the corresponding distances in the benzimidazolium cation are equal in (II), consistent with electron delocalization resulting from protonation of the amine N atom. Crystals of (Ib) and (Ic) contain columns of parallel molecules, which are linked by edge‐over‐edge C—H⋯π overlap. The columns are linked to one another by C—H⋯π interactions and, in the case of (Ib), C—H⋯N hydrogen bonds. Crystals of (II) contain layers of monocations linked by π–π interactions and separated by both perchlorate anions and the protruding ethyl groups; the cations and anions are linked by N—H⋯O hydrogen bonds. 相似文献
16.
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
17.
Neil F. Curtis Rebekah Pawley Ward T. Robinson 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(8):m352-m354
The title compound, [NiCl(C12H32N6)(H2O)]Cl3·3H2O, has the bis(diamine)‐substituted cyclic tetraamine in a planar coordination to triplet ground‐state NiII [average Ni—N = 2.068 (3) Å], with a chloride ion [Ni—Cl = 2.4520 (5) Å] and a water molecule [Ni—O = 2.177 (2) Å] coordinated in the axial sites. The amine substituents are protonated and equatorially oriented. The amine groups, ammonium groups, water molecules and chloride ions are linked by an extensive hydrogen‐bonding network. 相似文献
18.
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
19.
Urs D. Wermuth Jonathan M. White Graham Smith 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(7):o402-o404
The crystal structure of the proton‐transfer compound of 1,1′‐biphenyl‐4,4′‐diamine (benzidine) with 3,5‐dinitrosalicylic acid, viz. 1,1′‐biphenyl‐4,4′‐diaminium bis(4′‐amino‐1,1′‐biphenyl‐4‐aminium) tetrakis(2‐carboxy‐4,6‐dinitrophenolate) ethanol disolvate, C12H14N22+·2C12H13N2+·4C7H3N2O7−·2C2H6O, shows the presence of both diprotonated and monoprotonated benzidine cations. The diprotonated species lie across crystallographic inversion centres in the unit cell, while the monoprotonated species occupy general sites. All amine H atoms participate in hydrogen bonding with carboxyl, phenolate and nitro O‐atom acceptors of the salicylate anions, which also participate in hydrogen bonding with the disordered ethanol solvent molecules. Significant inter‐ring anion–anion and anion–monocation π–π interactions are also present, giving a three‐dimensional framework structure. 相似文献
20.
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