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1.
Suchada Chantrapromma Anwar Usman Hoong‐Kun Fun Bo‐Long Poh Chatchanok Karalai 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(9):o589-o590
In the title ternary complex, C10H9N2+·C7H3N2O6?·C7H4N2O6, the pyridinium cation adopts the role of the donor in an intermolecular N—H?O hydrogen‐bonding interaction with the carboxylate group of the 3,5‐dinitrobenzoate anion. The molecules of the ternary complex form molecular ribbons perpendicular to the b direction, which are stabilized by one N—H?O, one O—H?O and five C—H?O intermolecular hydrogen bonds. The ribbons are further interconnected by three intermolecular C—H?O hydrogen bonds into a three‐dimensional network. 相似文献
2.
Katharine F. Bowes George Ferguson Christopher Glidewell Alan J. Lough 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(8):o467-o469
The title compound is a hydrated salt, 1,4‐diazoniabicyclo[2.2.2]octane–N‐[(hydroxyphosphinato)methyl]iminiodiacetate–water (1/1/1.5), C6H14N22+·C5H8NO7P2?·1.5H2O, in which one of the water molecules lies across a twofold rotation axis in space group P2/n. The ionic components are linked into sheets by a combination of a three‐centre N—H?(O)2 hydrogen bond and two‐centre O—H?O and N—H?O hydrogen bonds, and these sheets are pairwise linked by the water molecules into bilayers, by means of further O—H?O hydrogen bonds. 相似文献
3.
Choudhury M. Zakaria George Ferguson Alan J. Lough Christopher Glidewell 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):o204-o208
The adduct 1,6‐diaminohexane–1,1,1‐tris(4‐hydroxyphenyl)ethane (1/2) is a salt {hexane‐1,6‐diyldiammonium–4‐[1,1‐bis(4‐hydroxyphenyl)ethyl]phenolate (1/2)}, C6H18N22+·2C20H17O3?, in which the cation lies across a centre of inversion in space group P. The anions are linked by two short O—H?O hydrogen bonds [H?O 1.74 and 1.76 Å, O?O 2.5702 (12) and 2.5855 (12) Å, and O—H?O 168 and 169°] into a chain containing two types of R(24) ring. Each cation is linked to four different anion chains by three N—H?O hydrogen bonds [H?O 1.76–2.06 Å, N?O 2.6749 (14)–2.9159 (14) Å and N—H?O 156–172°]. In the adduct 2,2′‐bipyridyl–1,1,1‐tris(4‐hydroxyphenyl)ethane (1/2), C10H8N2·2C20H18O3, the neutral diamine lies across a centre of inversion in space group P21/n. The tris(phenol) molecules are linked by two O—H?O hydrogen bonds [H?O both 1.90 Å, O?O 2.7303 (14) and 2.7415 (15) Å, and O—H?O 173 and 176°] into sheets built from R(38) rings. Pairs of tris(phenol) sheets are linked via the diamine by means of a single O—H?N hydrogen bond [H?N 1.97 Å, O?N 2.7833 (16) Å and O—H?N 163°]. 相似文献
4.
Anwar Usman Suchada Chantrapromma Hoong‐Kun Fun Bo‐Long Poh Chatchanok Karalai 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(3):o136-o138
In the title 1/2/2 adduct, C4H12N22+·2C6H3N2O5?·2H2O, the dication lies on a crystallographic inversion centre and the asymmetric unit also has one anion and one water molecule in general positions. The 2,4‐dinitrophenolate anions and the water molecules are linked by two O—H?O and two C—H?O hydrogen bonds to form molecular ribbons, which extend along the b direction. The piperazine dication acts as a donor for bifurcated N—H?O hydrogen bonds with the phenolate O atom and with the O atom of the o‐nitro group. Six symmetry‐related molecular ribbons are linked to a piperazine dication by N—H?O and C—H?O hydrogen bonds. 相似文献
5.
Meiyappan Muthuraman Jean‐Franois Nicoud Muriel Bagieu‐Beucher 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):1077-1078
The title compound, alternatively sodium pyridin‐2‐olate trihydrate, Na+·C5H3N2O3?·3H2O, crystallizes in the P space group. It is made up of edge‐shared chains of NaO6 octahedra with five water molecules and one 5‐nitro‐2‐pyridonate anion. Four of these water molecules are bicoordinating, involved in connecting the adjacent octahedra, and the fifth is coordinated to only one octahedron. The crystal structure is stabilized by a network of strong O—H?O and O—H?N interactions. The organic moieties occupy the space between the chains with an antiparallel alignment. 相似文献
6.
Jacek Zaleski Zdzisaw Daszkiewicz Janusz B. Kyzio 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(6):754-757
In the title compounds, C6H8N3O2+·NO3? and C5H6N3O2+·CH3SO3?, respectively, the cations are almost planar; the twist of the nitramino group about the C—N and N—N bonds does not exceed 10°. The deviations from coplanarity are accounted for by intermolecular N—H?O interactions. The coplanarity of the NHNO2 group and the phenyl ring leads to the deformation of the nitramino group. The C—N—N angle and one C—C—N angle at the junction of the phenyl ring and the nitramino group are increased from 120° by ca 6°, whereas the other junction C—C—N angle is decreased by ca 5°. Within the nitro group, the O—N—O angle is increased by ca 5° and one O—N—N angle is decreased by ca 5°, whereas the other O—N—N angle remains almost unchanged. The cations are connected to the anions by relatively strong N—H?O hydrogen bonds [shortest H?O separations 1.77 (2)–1.81 (3) Å] and much weaker C—H?O hydrogen bonds [H?O separations 2.30 (2)–2.63 (3) Å]. 相似文献
7.
Monica Schneider Anthony Linden Andreas Rippert 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(8):1004-1006
The title compounds are diastereoisomers with antipodean axial chirality. The M isomer crystallizes as a (1/3) acetone solvate, C32H30NO+·Br?·3C3H6O, while the P isomer crystallizes as a (1/1) dichloromethane solvate, C32H30NO+·Br?·CH2Cl2. In each structure, O—H?Br hydrogen bonds link the cations and anions to give ion pairs. The seven‐membered azepinium ring adopts the usual twisted‐boat conformation and its ring strain causes a slight curvature of the plane of each naphthyl ring. 相似文献
8.
L. Vijayalakshmi V. Parthasarathi Vipul Vora Bhavik Desai Anamik Shah 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(7):817-818
In the title salt, C5H12N+·C29H23O6?, both benzopyran systems are planar. Intermolecular N—H?O hydrogen bonds and a short O—H?O intramolecular hydrogen bond are observed in the structure. 相似文献
9.
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
10.
G. Vasuki S. Thamotharan V. Parthasarathi K. Ramamurthi S. Dubey D. P. Jindal 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(10):o598-o599
The title compound, C32H45N2O+·Br?·0.5H2O, has the outer two six‐membered rings in chair conformations, while the central ring is in an 8β,9α‐half‐chair conformation. The five‐membered ring of the steroid nucleus adopts a slightly deformed 14α‐envelope conformation. The pyridylmethylene moiety has an E configuration with respect to the hydroxyl group at position 17. The structure is stabilized by a network of O—H?Br‐type intermolecular hydrogen bonds. 相似文献
11.
Elizabeth J. MacLean Simon J. Teat Dorcas M. M. Farrell George Ferguson Christopher Glidewell 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(8):o470-o473
The title compound, meso‐5,7,7,12,14,14‐hexamethyl‐4,11‐diaza‐1,8‐diazoniacyclotetradecane bis(3‐carboxy‐5‐nitrobenzoate), C16H38N42+·2C8H4NO6?, is a salt in which the cation is present as two configurational isomers, disordered across a common centre of inversion in P, with occupancies of 0.847 (3) and 0.153 (3). The anions are linked into chains by a single O—H?O hydrogen bond [H?O 1.71 Å, O?O 2.5063 (15) Å and O—H?O 156°] and the cations link these anion chains into sheets by means of a range of N—H?O hydrogen bonds [H?O 1.81–2.53 Å, N?O 2.718 (5)–3.3554 (19) Å and N—H?O 146–171°]. 相似文献
12.
Elizabeth George Subramania Vivekanandan Kandasamy Sivakumar 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(10):1208-1209
In the title compound, sodium N‐chlorobenzenesulfonamide sesquihydrate, Na+·C6H5ClNO2S?·1.5H2O, the sodium ion exhibits octahedral coordination by O atoms from three water molecules and by three sulfonyl O atoms of three different N‐chlorobenzenesulfonamide anions. A two‐dimensional polymeric layer consists of units, each comprising two face‐sharing octahedra which share four corners with four other such units, the layer running parallel to the ab plane. The water molecules participate in hydrogen bonds of the types O—H?O, O—H?N and O—H?Cl. 相似文献
13.
Cui Rong Sun Zhi Min Jin 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(10):o600-o601
In the title complex, 1,4‐diazoniabicyclo[2.2.2]octane bis(hydrogen maleate), C6H14N22+·2C4H3O4?, the C4H3O4? and C6H14N22+ ions, derived from maleic acid and 1,4‐diazabicyclo[2.2.2]octane, respectively, are disordered across a mirror plane in space group Cmc21, and they are linked by two nearly linear N—H?O hydrogen bonds, with N?O distances of 2.662 (3) and 2.614 (4) Å, and N—H?O angles of 173°. The crystal structure consists of sheets with reticulations of 3.3792 (4) Å in stratum and 7.3892 (8) Å in width. The sheets are linked by C—H?O hydrogen bonds. 相似文献
14.
Eric P. Kelson Proma P. Phengsy Atta M. Arif 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(5):517-519
The aldehyde moiety in the title complex, chloro(2‐pyridinecarboxaldehyde‐N,O)(2,2′:6′,2′′‐terpyridine‐κ3N)ruthenium(II)–chloro(2‐pyridinecarboxylic acid‐N,O)(2,2′:6′,2′′‐terpyridine‐κ3N)ruthenium(II)–perchlorate–chloroform–water (1.8/0.2/2/1/1), [RuCl(C6H5NO)(C15H11N3)]1.8[RuCl(C6H5NO2)(C15H11N3)]0.2(ClO4)2·CHCl3·H2O, is a structural model of substrate coordination to a transfer hydrogenation catalyst. The title complex features two independent RuII complex cations that display very similar distorted octahedral coordination provided by the three N atoms of the 2,2′:6′,2′′‐terpyridine ligand, the N and O atoms of the 2‐pyridinecarboxaldehyde (pyCHO) ligand and a chloride ligand. One of the cation sites is disordered such that the aldehyde group is replaced by a 20 (1)% contribution from a carboxylic acid group (aldehyde H replaced by carboxyl O—H). Notable dimensions in the non‐disordered complex cation are Ru—N 2.034 (2) Å and Ru—O 2.079 (2) Å to the pyCHO ligand and O—C 1.239 (4) Å for the pyCHO carbonyl group. 相似文献
15.
Richard Goddard Stephan Hütte Manfred T. Reetz 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):878-880
The title compound, C16H36N+·C6H7O3?, crystallizes with two independent anions and two independent cations in the asymmetric unit. Each anion adopts an s‐trans conformation and forms O?H—C hydrogen bonds to the α‐methylene groups of four neighbouring tetrabutylammonium cations, to create a three‐dimensional hydrogen‐bonded network. 相似文献
16.
Suchada Chantrapromma Anwar Usman Hoong‐Kun Fun Bo‐Long Poh Chatchanok Karalai 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(11):o675-o677
In the title adduct, 1,3,5,7‐tetraazatricyclo[3.3.1.13,7]decane–4‐nitrobenzene‐1,2‐diol–water (1/2/1), C6H12N4·2C6H5NO4·H2O, the hexamethylenetetramine molecule acts as an acceptor of intermolecular O—H?N hydrogen‐bonding interactions from the water molecule and the hydroxy groups of one of the two symmetry‐independent 4‐nitrocatechol molecules. The structure is built from molecular layers which are stabilized by three intermolecular O—H?O, two intermolecular O—H?N and four intermolecular C—H?O hydrogen bonds. The layers are further interconnected by one additional intermolecular O—H?N and two intermolecular C—H?O hydrogen bonds. 相似文献
17.
Orhan Büyükgüngr Mustafa OdabasÛoglu 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(11):o691-o692
In the title compound, 2C5H7N2+·C4H4O42?·C4H6O4, cyclic eight‐membered hydrogen‐bonded rings exist involving 2‐aminopyridinium and succinate ions. The succinic acid and succinate moieties lie on inversion centres. Succinic acid molecules and succinate ions are linked into zigzag chains by O—H?O hydrogen bonds, with O?O distances of 2.6005 (16) Å. 相似文献
18.
Guibin Ma Andrey Ilyukhin Julius Glaser 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(12):1473-1475
The title compound, [H2bipy](ClO4)2 or C10H10N22+·2ClO4?, was obtained at the interface between an organic (2,2′‐bipyridine in methanol) and an aqueous phase (perchloric acid in water). The compound crystallizes in space group P and comprises discrete diprotonated trans‐bipyridinium cations, [H2bipy]2+, and ClO4? anions. The cations and anions are connected through N—H?O and C—H?O hydrogen bonds [distances N?O 2.817 (4) and 2.852 (4) Å, and C?O 3.225 (6)–3.412 (5)Å]. The C—C bond distance between the two rings is 1.452 (5) Å. The bipyridinium cation has a trans conformation and the N—C—C—N torsion angle is 152.0 (3)°. 相似文献
19.
Daniel Vega Daniel Fernndez Javier A. Ellena 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(9):1092-1094
The title compound, raloxifene hydrochloride, C28H28NO4S+·Cl?, belongs to the benzothiophene class of antiosteoporotic drugs. In the molecular cation, the 2‐phenol ring sustains a dihedral angle of 45.3 (1)° relative to the benzo[b]thiophene system. The benzo[b]thiophene and phenyl ring planes are twisted with respect to the carbonyl plane, with the smallest twist component occurring between the phenyl and carbonyl planes. The N atom bears the positive charge in the molecular cation and the piperidine ring adopts an almost perfect chair conformation. The Cl? anion is involved in the formation of N—H?Cl and O—H?Cl intermolecular hydrogen bonds, which lead to the formation of a layer of molecular cations. 相似文献
20.
Stanisaw Boryczka Thomas Steiner 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):1139-1141
In 3‐methylthio‐4‐(propargylthio)quinolinium chloride monohydrate, C13H12NS2+·Cl?·H2O, and 3‐methylthio‐4‐(propargylthio)quinolinium trichloroacetate, C13H12NS2+·C2Cl3O2?, the terminal alkyne group forms C[triple‐bond]C—H?O hydrogen bonds of favourable geometry. The conformation of the flexible propargylthio group is different in the two structures. 相似文献