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1.
Fang‐Jun Huo Cai‐Xia Yin Xiang‐Lin Jin Pin Yang 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(5):o332-o335
The two title chromene compounds, 3,3a‐dihydrocyclopenta[b]chromen‐1(2H)‐one, C16H12O2, (I), and 2‐(2‐hydroxybenzylidene)‐3,3a‐dihydrocyclopenta[b]chromen‐1(2H)‐one, C19H14O3, (II), have been determined in the monoclinic space group P21/n. Compound (I) is mainly stabilized by C—H⋯π interactions. Compound (II) is linked into infinite one‐dimensional chains with a C(3) motif via intermolecular O—H⋯O hydrogen bonds. The intermolecular C—H⋯π and π–π interactions also play key roles in stabilizing the crystal packing. Two intramolecular C—H⋯O hydrogen bonds with S(5) motifs were detected in (II). 相似文献
2.
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
3.
Gordana Pavlovi Lidija Barii Vladimir Rapi Veronika Kova
《Acta Crystallographica. Section C, Structural Chemistry》2003,59(2):m55-m57
Heteroannularly substituted ferrocene derivatives can act as model systems for various hydrogen‐bonded assemblies of biomolecules formed, for instance, by means of O—H⋯O and N—H⋯O hydrogen bonding. The crystal structure analysis of 1′‐(tert‐butoxycarbonylamino)ferrocene‐1‐carboxylic acid, [Fe(C10H14NO2)(C6H5O2)] or (C5H4COOH)Fe(C5H4NHCOOC(CH3)3, reveals two independent molecules within the asymmetric unit, and these are joined into discrete dimers by two types of intermolecular hydrogen bonds, viz. O—H⋯O and N—H⋯O. The –COOH and –NHCOOR groups are archetypes for dimer formation via two eight‐membered rings. The O—H⋯O hydrogen bonds [2.656 (3) and 2.663 (3) Å] form a cyclic carboxylic acid dimer motif. Another eight‐membered ring is formed by N—H⋯O hydrogen bonds [2.827 (3) and 2.854 (3) Å] between the N—H group and an O atom of another carbamoyl moiety. The dimers are assembled in a herring‐bone fashion in the bc plane. 相似文献
4.
In catena‐poly[[(di‐2‐pyridylamine‐κ2N,N′)silver(I)]‐μ‐nicotinato‐κ2N:O], [Ag(C6H4NO2)(C10H9N3)]n, the AgI atom is tetracoordinated by two N atoms from the di‐2‐pyridylamine (BPA) ligand [Ag—N = 2.3785 (18) and 2.3298 (18) Å] and by one N atom and one carboxylate O atom from nicotinate ligands [Ag—N = 2.2827 (15) Å and Ag—O = 2.3636 (14) Å]. Bridging by nicotinate N and O atoms generates a polymeric chain structure, which extends along [100]. The carboxyl O atom not bonded to the Ag atom takes part in an intrachain C—H⋯O hydrogen bond, further stabilizing the chain. Pairs of chains are linked by N—H⋯O hydrogen bonds to generate ribbons. There are no π–π interactions in this complex. In catena‐poly[[(di‐2‐pyridylamine‐κ2N,N′)silver(I)]‐μ‐2,6‐dihydroxybenzoato‐κ2O1:O2], [Ag(C7H5O4)(C10H9N3)]n, the AgI atom has a distorted tetrahedral coordination, with three strong bonds to two pyridine N atoms from the BPA ligand [Ag—N = 2.286 (5) and 2.320 (5) Å] and to one carboxylate O atom from the 2,6‐dihydroxybenzoate ligand [Ag—O = 2.222 (4) Å]; the fourth, weaker, Ag‐atom coordination is to one of the phenol O atoms [Ag⋯O = 2.703 (4) Å] of an adjacent moiety, and this interaction generates a polymeric chain along [100]. Pairs of chains are linked about inversion centers by N—H⋯O hydrogen bonds to form ribbons, within which there are π–π interactions. The ribbons are linked about inversion centers by pairs of C—H⋯O hydrogen bonds and additional π–π interactions between inversion‐related pairs of 2,6‐dihydroxybenzoate ligands to generate a three‐dimensional network. 相似文献
5.
Yao‐Cheng Shi Su‐Hua Zhang Hong‐Jian Cheng Wei‐Ping Sun 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(9):m407-m410
The title compounds, both [Fe(C5H5)(C15H14NO2)], crystallize with Z′ = 2 in the centrosymmetric space group P. In each compound, there is an intramolecular N—H⋯O=C hydrogen bond, and pairs of intermolecular O—H⋯O=C hydrogen bonds link the molecules into chains, parallel to [10] in the 3‐hydroxy compound and parallel to [10] in the 4‐hydroxy compound. 相似文献
6.
Hasan Karabyk Bilgehan Güzel Muhittin Aygün Gülnaz Boa Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(4):o215-o218
The title Schiff base compound, C28H26N2O2, possesses both OH and NH tautomeric character in its molecular structure. While the OH side of the compound is described as an intermediate state, its NH side adopts a predominantly zwitterionic form. The molecular structure of the compound is stabilized by both N+—H⋯O− and O—H⋯N intramolecular hydrogen bonds. There are two weak C—H⋯O hydrogen bonds leading to polymeric chains of topology C(5) and C(13) running along the b axis of the unit cell. In addition, intermolecular C—H⋯π interactions serve to stabilize the extended structure. 相似文献
7.
Nada Kouti Hulita Aleksandar Danilovski Darko Fili Marina Marinkovi Ernest Metrovi Miljenko Dumi 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(11):o648-o651
The structures of the three title isomers, namely 4‐(2‐methylanilino)pyridine‐3‐sulfonamide, (I), 4‐(3‐methylanilino)pyridine‐3‐sulfonamide, (II), and 4‐(4‐methylanilino)pyridine‐3‐sulfonamide, (III), all C12H13N3O2S, differ in their hydrogen‐bonding arrangements. In all three molecules, the conformation of the 4‐aminopyridine‐3‐sulfonamide moiety is conserved by an intramolecular N—H⋯O hydrogen bond and a C—H⋯O interaction. In the supramolecular structures of all three isomers, similar C(6) chains are formed via intermolecular N—H⋯N hydrogen bonds. N—H⋯O hydrogen bonds lead to C(4) chains in (I), and to R22(8) centrosymmetric dimers in (II) and (III). In each isomer, the overall effect of all hydrogen bonds is to form layer structures. 相似文献
8.
Fumio Imashiro 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(7):o410-o411
Molecules of the title compound, C16H22O4S, have twofold crystallographic symmetry and are stabilized by strong intramolecular O—H⋯O hydrogen bonds and very weak intermolecular C—H⋯O hydrogen bonds, forming layers normal to the c axis. The molecular structure is compared with those of the Se‐ and CH2‐bridged analogues. 相似文献
9.
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
10.
Carlos E. M. Carvalho Solange M. S. V. Wardell James L. Wardell Janet M. S. Skakle John N. Low Christopher Glidewell 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(1):o28-o32
Molecules of the title compounds N2‐(benzoyloxy)benzamidine, C14H12N2O2, (I), N2‐(2‐hydroxybenzoyloxy)benzamidine, C14H12N2O3, (II), and N2‐benzoyloxy‐2‐hydroxybenzamidine, C14H12N2O3, (III), all have extended chain conformations, with the aryl groups remote from one another. In (I), the molecules are linked into chains by a single N—H⋯N hydrogen bond [H⋯N = 2.15 Å, N⋯N = 3.029 (2) Å and N—H⋯N = 153°] and these chains are linked into sheets by means of aromatic π–π stacking interactions. There is one intramolecular O—H⋯O hydrogen bond in (II), and a combination of one three‐centre N—H⋯(N,O) hydrogen bond [H⋯N = 2.46 Å, H⋯O = 2.31 Å, N⋯N = 3.190 (2) Å, N⋯O = 3.146 (2) Å, N—H⋯N = 138° and N—H⋯O = 154°] and one two‐centre C—H⋯O hydrogen bond [H⋯O = 2.46 Å, C⋯O = 3.405 (2) Å and C—H⋯O = 173°] links the molecules into sheets. In (III), an intramolecular O—H⋯N hydrogen bond and two N—H⋯O hydrogen bonds [H⋯O = 2.26 and 2.10 Å, N⋯O = 2.975 (2) and 2.954 (2) Å, and N—H⋯O = 138 and 163°] link the molecules into sheets. 相似文献
11.
Yun He 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(10):m469-m471
In the title compound, [Ni(C15H8O7S)(H2O)4]·C3H7NO·H2O, the NiII cation is chelated by a 7‐hydroxy‐5‐oxidoflavone‐6‐sulfonate ligand through one oxide and one carbonyl O atom, and the sixfold coordination is completed by four aqua ligands. Individual molecules are linked into hydrogen‐bonded dimers by way of five pairs of O—H⋯O hydrogen bonds. These dimers, in turn, determine a three‐dimensional supramolecular arrangement through a variety of interdimeric interactions, such as O—H⋯O, C—H⋯O and π–π stacking. 相似文献
12.
Teresa Borowiak Grzegorz Dutkiewicz Jarosaw Spychaa 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):o201-o203
In both 1‐(2‐cyanoethyl)thymine [systematic name: 3‐(5‐methyl‐2,4‐dioxo‐1,2,3,4‐tetrahydropyrimidin‐1‐yl)propanenitrile], C8H9N3O2, (I), and 1‐(3‐cyanopropyl)thymine [systematic name: 4‐(5‐methyl‐2,4‐dioxo‐1,2,3,4‐tetrahydropyrimidin‐1‐yl)butanenitrile], C9H11N3O2, (II), the core of the supramolecular structure is formed by centrosymmetric dimers generated by N—H⋯O hydrogen bonds. Further weak hydrogen bonds of C—H⋯O and C—H⋯N types generate molecular tapes and sheets that resemble those in uracil and its methyl derivatives. The steric hindrance that arises from the cyanoalkyl substituents perturbs the conformations of the tapes and sheets. 相似文献
13.
Tomasz Klis Sergiusz Lulinski Janusz Serwatowski 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):o145-o146
The molecule of the title compound, 2,3‐F2‐4‐(CHO)C6H2B(OH)2 or C7H5BF2O3, contains a formyl group coplanar with the benzene ring. The boronic acid group is twisted with respect to the benzene ring plane. The molecules are organized into infinite chains via intermolecular O—H⋯O hydrogen bonds. These chains are additionally connected via strong O—H⋯O hydrogen bonds, producing a folded layer structure perpendicular to the a axis. These layers are paired due to B⋯F interactions. 相似文献
14.
Zhong‐Lu You 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(8):m383-m385
The two title complexes, [ZnCl2(C11H15N3O3)], (I), and [ZnCl2(C11H15N3O3)]·0.5H2O, (II), are mononuclear zinc(II) compounds. In both structures, the ZnII atom is four‐coordinated in a tetrahedral configuration by one imine N atom and one phenolate O atom of a Schiff base, and by two Cl atoms. The structure of each of the two zinc(II) complex molecules of (II) is similar to that of (I). In (I), the molecules are linked through intermolecular hydrogen bonds, forming a three‐dimensional framework. In (II), the solvent water molecules are linked to the zinc(II) moieties through intermolecular O—H⋯O and O—H⋯Cl hydrogen bonds. The molecules in (II) are further linked via other intermolecular hydrogen bonds, forming a three‐dimensional framework. 相似文献
15.
Onur ahin Orhan Büyükgüngr Dursun Ali Kse Birgül Zümreoglu‐Karan Hacali Necefoglu 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m513-m515
The CoII ion in the title complex {[Co(C5H2N2O4)(H2O)3]·1.72H2O}n, has a distorted octahedral coordination geometry comprised of three water ligands, one deprotonated pyrimidine N atom and an adjacent carboxylate O atom of one orotate ligand. The sixth coordination site is occupied by an exocyclic O atom from a neighbouring orotate moiety, and through this interaction a helicoidal chain is formed. The molecules are linked by intramolecular Owater—H⋯O and intermolecular N—H⋯O and Owater—H⋯O hydrogen bonds, forming a three‐dimensional network. 相似文献
16.
Yao‐Cheng Shi Bei‐Bei Zhu Xiao‐Bi Jing 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m559-m562
The molecules of N,N′‐bis(2‐pyridylmethyl)ferrocene‐1,1′‐diyldicarboxamide, [Fe(C12H11N2O)2], contain intramolecular N—H⋯N hydrogen bonds and are linked into sheets by three independent C—H⋯O hydrogen bonds. The molecules of the isomeric compound N,N′‐bis(3‐pyridylmethyl)ferrocene‐1,1′‐diyldicarboxamide lie across inversion centres, and the molecules are linked into sheets by a combination of N—H⋯N hydrogen bonds and π–π stacking interactions between pyridyl groups. 相似文献
17.
Christopher Glidewell John N. Low Janet M. S. Skakle James L. Wardell 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(1):o15-o18
2‐Amino‐5‐nitrothiazole crystallizes from solution in ethanol as a monosolvate, C3H3N3O2S·C2H6O, in which the thiazole component has a strongly polarized molecular–electronic structure. The thiazole molecules are linked into centrosymmetric dimers by paired N—H⋯N hydrogen bonds [H⋯N = 2.09 Å, N⋯N = 2.960 (6) Å and N—H⋯N = 169°], and these dimers are linked by the ethanol molecules, via a two‐centred N—H⋯O hydrogen bond [H⋯O = 1.98 Å, N⋯O = 2.838 (5) Å and N—H⋯O = 164°] and a planar asymmetric three‐centred O—H⋯(O)2 hydrogen bond [H⋯O = 2.07 and 2.53 Å, O⋯O = 2.900 (5) and 3.188 (5) Å, O—H⋯O = 169 and 136°, and O⋯H⋯O = 55°], into sheets built from alternating (8) and (38) rings. These sheets are triply interwoven. 相似文献
18.
Khalid A. Al‐Farhan 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(7):o531-o532
In the title compound, C18H15OP·C11H8O2, co‐crystallization of triphenylphosphine oxide with 1‐naphthoic acid yields a supramolecular structure held together by one O—H⋯O and three C—H⋯O hydrogen bonds. The O—H⋯O hydrogen bond [O⋯O = 2.592 (2) Å] has little effect on the O=P bond distance. 相似文献
19.
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
20.
trans‐Diaquabis(5‐carboxy‐1H‐imidazole‐4‐carboxylato‐κ2N3,O4)cobalt(II) 4,4′‐bipyridine solvate
Rong Cao Yu‐Ling Wang Wen‐Hua Bi 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(12):m609-m611
In the title compound, [Co(C5H3N2O4)2(H2O)2]·C10H8N2, the Co atom is trans‐coordinated by two pairs of N and O atoms from two monoanionic 4,5‐dicarboxyimidazole ligands, and by two O atoms from two coordinated water molecules, in a distorted octahedral geometry. The 4,4′‐bipyridine solvent molecule is not involved in coordination but is linked by an N—H⋯N hydrogen bond to the neutral [Co(C5H3N2O4)2(H2O)2] molecule. Both molecules are located on inversion centers. The crystal packing is stabilized by N—H⋯N and O—H⋯O hydrogen bonds, which produce a three‐dimensional hydrogen‐bonded network. Offset π–π stacking interactions between the pyridine rings of adjacent 4,4′‐bipyridine molecules were observed, with a face‐to‐face distance of 3.345 (1) Å. 相似文献