共查询到20条相似文献,搜索用时 46 毫秒
1.
Zbigniew Ciunik Agata Biaoska 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(9):o537-o539
In strychninium 4‐chlorobenzoate, C21H23N2O2+·C7H4ClO2−, (I), and strychninium 4‐nitrobenzoate, C21H23N2O2+·C7H4NO4−, (II), the strychninium cations form pillars stabilized by C—H⋯O and C—H⋯π hydrogen bonds. Channels between the pillars are occupied by anions linked to one another by C—H⋯π hydrogen bonds. The cations and anions are linked by ionic N—H+⋯O− and C—H⋯X hydrogen bonds, where X = O, π and Cl in (I), and O and π in (II). 相似文献
2.
Iwona Bryndal Mariusz Jaremko ukasz Jaremko Tadeusz Lis 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(3):o111-o114
Solvent‐free (2S)‐methyl 2‐ammonio‐3‐(4‐hydroxyphenyl)propionate chloride, C10H14NO3+·Cl−, (I), and its methanol solvate, C10H14NO3+·Cl−·CH3OH, (II), are obtained from different solvents: crystallization from ethanol or propan‐2‐ol gives the same solvent‐free crystals of (I) in both cases, while crystals of (II) were obtained by crystallization from methanol. The structure of (I) is characterized by the presence of two‐dimensional layers linked together by N—H⋯Cl and O—H⋯Cl hydrogen bonds and also by C—H⋯O contacts. Incorporation of the methanol solvent molecule in (II) introduces additional O—H⋯O hydrogen bonds linking the two‐dimensional layers, resulting in the formation of a three‐dimensional network. 相似文献
3.
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
4.
Maksymilian Chruszcz Marcin Cymborowski Anna Gawlicka‐Chruszcz Shoichi Yasukawa Joseph D. Ferrara Wladek Minor 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(12):o868-o871
The crystal structures of the title compounds, (S)‐1‐carboxy‐3‐(methylsulfanyl)propanaminium chloride, C5H12NO2S+·Cl−, and (S)‐1‐carboxy‐3‐(methylselanyl)propanaminium chloride, C5H12NO2Se+·Cl−, are isomorphous. The protonated l ‐methionine and l ‐selenomethionine molecules have almost identical conformations and create very similar contacts with the Cl− anions in the crystal structures of both compounds. The amino acid cations and the Cl− anions are linked viaN—H⋯Cl− and O—H⋯Cl− hydrogen bonds. 相似文献
5.
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
6.
7.
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
8.
Jin‐Yan Zhao Xiang‐Bo Wang Guang‐You Zhang Wan‐Hui Wang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(8):o534-o536
In the title compound, C25H30NO+·Cl−, the molecules are linked by a combination of intermolecular N—H⋯Cl and O—H⋯Cl hydrogen bonds and intramolecular N—H⋯O hydrogen bonds. The absolute configuration of the new stereogenic centre (the C atom adjacent to the N atom on the phenol side) is determined to have an R configuration. 相似文献
9.
Catherine Michaux Claudio Salvagnini Bernadette Norberg Jacqueline Marchand‐Brynaert Johan Wouters 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(12):o691-o693
In the title compound, C18H27F3N5O3S+·Cl−, the guanidine group forms N—H⋯Cl hydrogen bonds, with four N⋯Cl distances in the range 3.164 (3)–3.337 (4) Å. In the crystal packing, the cations are further linked by N—H⋯O and C—H⋯O interactions. The structure is compared with that of argatroban complexed with thrombin and is the subject of docking studies in the active site of thrombin. 相似文献
10.
Madhukar Hemamalini Packianathan Thomas Muthiah Gabriele Bocelli Andrea Cantoni 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(4):o284-o286
In the title compound, C10H9N2+·C9H5INO4S−·2H2O, the 4,4′‐bipyridine molecule is protonated at one of the pyridine N atoms. These moieties self‐assemble into a supramolecular chain along the a axis through N—H⋯N hydrogen bonds. The quinolinol OH group acts as a donor with respect to a sulfonate O atom [O—H⋯O(sulfonate)] and acts as an acceptor with respect to a C—H group of ferron [C—H⋯O(hydroxy)], forming a supramolecular chain along the b axis. These two types of supramolecular chains (one type made up of bipyridine motifs and the other made up of sulfoxine motifs) interact viaπ–π stacking, generating a three‐dimensional framework. These chains are further crosslinked by C—H⋯O hydrogen bonds and O—H⋯O hydrogen bonds involving water molecules. 相似文献
11.
Christopher Glidewell John N. Low Manuel Melguizo Antonio Quesada 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(5):o240-o243
In the title compound, 2C8H12N+·2C4H3N4O4−·C8H11N, the anions are linked by paired N—H⋯N hydrogen bonds [H⋯N = 2.07 and 2.11 Å, N⋯N = 2.942 (3) and 2.978 (3) Å and N—H⋯N = 173 and 170°] and by paired N—H⋯O hydrogen bonds [H⋯O = 1.98 and 2.05 Å, N⋯O = 2.855 (3) and 2.917 (3) Å, and N—H⋯O = 173 and 167°] into chains of rings. These chains are linked into sheets by further N—H⋯O hydrogen bonds in which all of the donors are provided by the cations [H⋯O = 1.83–2.17 Å, N⋯O = 2.747 (3)–2.965 (3) Å and N—H⋯O = 141–168°]. The neutral amine molecule is pendent from the sheet and is linked to it by a single N—H⋯N hydrogen bond [H⋯N = 2.00 Å, N⋯N = 2.901 (3) Å and N—H⋯N = 175°]. 相似文献
12.
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
13.
Luigi R Nassimbeni Hong Su 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(6):o358-o361
The structures of bis[(R)‐(+)‐1‐phenylethylammonium] (2R,3R)‐(−)‐2,3‐di‐p‐toluoyloxybutanedioate methanol disolvate monohydrate, 2C8H12N+·C20H16O82−·2CH4O·H2O, (I), and bis(benzylammonium) (2R,3R)‐(−)‐2,3‐di‐p‐toluoyloxybutanedioate dihydrate, 2C7H10N+·C20H16O82−·2H2O, (II), exhibit extensive hydrogen bonding, with (N—)H⋯O and (O—)H⋯O distances in the ranges 2.716 (2)–2.929 (3) and 2.687 (2)–2.767 (2) Å, respectively, in (I), and 2.673 (2)–2.888 (2) and 2.785 (2)–2.931 (2) Å, respectively, in (II). The amine groups are protonated and the carboxylate groups of the tartrate anions are fully deprotonated. The conformation of the toluoyltartrate anion and its molecular parameters are similar in both structures. 相似文献
14.
Matthew R. Wood Thomas A. Brettell Roger A. Lalancette 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(2):m33-m35
The title salt, methyl (1R,2R,3S,5S,8S)‐3‐benzoyloxy‐8‐methyl‐8‐azabicyclo[3.2.1]octane‐2‐carboxylate tetrachloroaurate(III), (C17H22NO4)[AuCl4], has its protonated N atom intramolecularly hydrogen bonded to the O atom of the methoxycarbonyl group [N⋯O = 2.755 (6) Å and N—H⋯O = 136°]. Two close intermolecular C—H⋯O contacts exist, as well as five C—H⋯Cl close contacts. The [AuCl4]− anion was found to be distorted square planar. 相似文献
15.
Na Liu Ai‐Ling Cheng En‐Qing Gao 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(2):o93-o95
In 3,4‐di‐2‐pyridyl‐1,2,5‐oxadiazole (dpo), C12H8N4O, each molecule resides on a twofold axis and interacts with eight neighbours via four C—H⋯N and four C—H⋯O interactions to generate a three‐dimensional hydrogen‐bonded architecture. In the perchlorate analogue, 2‐[3‐(2‐pyridyl)‐1,2,5‐oxadiazol‐4‐yl]pyridinium perchlorate, C12H9N4O+·ClO4− or [Hdpo]ClO4, the [Hdpo]+ cation is bisected by a crystallographic mirror plane, and the additional H atom in the cation is shared by the two pyridyl N atoms to form a symmetrical intramolecular N⋯H⋯N hydrogen bond. The cations and perchlorate anions are linked through C—H⋯O hydrogen bonds and π–π stacking interactions to form one‐dimensional tubes along the b‐axis direction. 相似文献
16.
Chan Soo Choi Ramaiyer Venkatraman Eun Hee Kim Hae Sook Hwang Sung Kwon Kang 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(4):o295-o296
Crystals of 2,4,6‐triamino‐1,3,5‐triazin‐1‐ium levulinate (4‐oxopentanoate) monohydrate, C3H7N6+·C5H7O3−·H2O, are formed via self‐assembled hydrogen bonding by cocrystallization of melamine and levulinic acid. Two N—H⋯N hydrogen bonds and four N—H⋯O hydrogen bonds connect two melaminium entities such that each of two pairs of N—H⋯O bonds bridges two H atoms belonging to the amine groups of two different melaminium cations via the carbonyl O atom of one levulinate molecule. 相似文献
17.
Nadia Marino Giuseppe Bruno Archimede Rotondo Giovanna Brancatelli Francesco Nicol 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(10):o587-o589
The title compound, C8H8NO4+·Cl−·H2O, is the chlorohydrated form of 2‐aminobenzene‐1,4‐dicarboxylic acid, the basic crystal structure of which is still not known. Molecules are linked by classical N—H⋯O, O—H⋯O, N—H⋯Cl and O—H⋯Cl hydrogen bonds, mainly along the molecular plane, into sheets built by unusual R64(26), R64(22) and R43(22) rings. The stacking between layers is stabilized by another N—H⋯Cl hydrogen bond and by π–π interactions between aromatic rings facing each other. 相似文献
18.
Dubravka Matkovi‐alogovi Erim Bei Mladen Biru Mario Gabri
evi 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):o694-o695
The title compound, N‐hydroxy‐2‐(trimethylammonio)acetamide chloride, C5H13N2O2+·Cl−, has been synthesized and structurally characterized. The structure consists of betainohydroxamic acid cations and Cl− anions linked by N—H⋯Cl and O—H⋯Cl hydrogen bonds into chains along [001]. It was found that the positive inductive effect of the charged N atom in close proximity to the hydroxamate carbonyl O atom has a negligible effect on the hydroxamic C—N bond length. 相似文献
19.
Ivan Halasz Kaja Luki Hrvoj Van
ik 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(1):o61-o64
4‐Amino‐trans‐azobenzene {or 4‐[(E)‐phenyldiazenyl]aniline} can form isomeric salts depending on the site of protonation. Both orange bis{4‐[(E)‐phenyldiazenyl]anilinium} hydrogen phosphate, 2C12H12N3+·HPO42−, and purple 4‐[(E)‐phenyldiazenyl]anilinium dihydrogen phosphate phosphoric acid solvate, C12H12N3+·H2PO4−·H3PO4, (II), have layered structures formed through O—H⋯O and N—H⋯O hydrogen bonds. Additionally, azobenzene fragments in (I) are assembled through C—H⋯π interactions and in (II) through π–π interactions. Arguments for the colour difference are tentatively proposed. 相似文献
20.
Peter G. Jones Steffi Friedrichs 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(12):m623-m627
Bis(1,3‐thiazolidine‐2‐thione‐κS2)gold(I) bis(4‐chlorobenzenesulfonyl)amide, [Au(C3H5NS2)2](C12H8Cl2NS2O4), has no imposed symmetry. Classical N—H⋯N and N—H⋯O hydrogen bonds link the residues to form chains parallel to the b axis. Weaker interactions involve C—H⋯O, C—H⋯Au and a number of X⋯Cl contacts (X = Cl, S or Au) clustered in the region y ≃ . In bis(1‐methylimidazolidine‐2‐thione‐κS2)gold(I) bis(4‐iodobenzenesulfonyl)amide, [Au(C4H8N2S)2](C12H8I2NS2O4), the Au atom of the cation and the N atom of the anion lie on the twofold axis (0, y, ) in the space group C2/c. The formula unit forms a self‐contained ring with two symmetry‐equivalent N—H⋯O hydrogen bonds, and weak C—H⋯X (X = O, I or S), Au⋯I and I⋯I contacts are observed. In both compounds, the anions display extended conformations. 相似文献