共查询到20条相似文献,搜索用时 15 毫秒
1.
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
2.
Dingming Wu Sheng Wang Xiang Lin Canzhong Lu Honghui Zhuang 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(2):e55-e56
The six Mo atoms in the title compound, (C4H12N)2[Mo6O19].H2O, form a standard octahedral cage through bridging O atoms. The [Mo6O19]2? anion as a whole has Oh symmetry with three crystallographic fourfold axes aligned along Mo—O—Mo. There exist weak O?O hydrogen bonds (O100?O3 2.951 Å) between the terminal O3 atoms of the anions and O100 atoms of the solvate hydrates in the unit cell. 相似文献
3.
Ilia A. Guzei Jeffrey S. Dougan Paul M. Treichel 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(9):1060-1061
The title compound, C36H30NP2+·HSO4?·CHCl3, consists of discrete ions and well separated chloroform solvate molecules. The central feature of the structure is O—H?O hydrogen bonding between two hydrogensulfate ions related by a crystallographic inversion centre. The chloroform solvate molecule takes part in a well defined C—H?O hydrogen bond. 相似文献
4.
Alan R. Kennedy Francis S. Mair 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m549-m551
The 1:1 of reaction of dibutylmagnesium with the ligand 2‐[(2‐isopropylphenyl)amino]‐4‐[(2‐isopropylphenyl)imino]pent‐2‐ene gives only the 1:2 metal–ligand compound bis[N,N′‐bis(2‐isopropylphenyl)pentane‐2,4‐diiminato]magnesium(II), [Mg(C23H29N2)2], as an isolated solid. The coordination geometry about the Mg atom is distorted tetrahedral [N—Mg—N angles range from 90.73 (5) to 136.40 (6)°], with the metal lying out of the ligand plane. The ligands themselves have non‐crystallographic Cs geometry. The structure is isotypic with the Zn analogue, and the small differences between these two structures provide evidence for a significant covalent contribution to bonds that are generally described as largely ionic. 相似文献
5.
De‐Hong Wu Cheng He Chun‐Ying Duan Xiao‐Zeng You 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(11):1336-1337
The thiosemicarbazone molecule in C10H12N6S2·2C3H7NO has symmetry. The thiosemicarbazone moiety and the benzene ring are essentially coplanar, with mean and maximum deviations of 0.03 and 0.11 Å, respectively. The dimethylformamide molecules bridge the thiosemicarbazone moieties, forming two‐dimensional sheets through N—H?O hydrogen bonds. 相似文献
6.
David G. Billing Andreas Lemmerer Melanie Rademeyer 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):m101-m104
The crystal structures of the two isomers bis(1‐phenylethylammonium) hexachloridostannate(IV) and bis(2‐phenylethylammonium) hexachloridostannate(IV), both (C8H12N)2[SnCl6], exhibit alternating organic and inorganic layers, which interact via N—H⋯Cl hydrogen bonding. The inorganic layer contains an extended two‐dimensional hydrogen‐bonded sheet. The Sn atom in the 1‐phenylethylammonium salt lies on an inversion centre. 相似文献
7.
Yurii S. Moroz El
bieta Gumienna‐Kontecka Igor O. Fritsky Nikolay M. Dudarenko Jolanta
witek‐Kozowska 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(10):m498-m500
The title compound, (C2H10N2)2[Ni(C2HN2O4)2]·2H2O, has an ionic structure containing a centrosymmetric complex 4− anion, charge‐balancing ethylenediaminium dications and solvent water molecules. The oxalohydroxamate unit is triply deprotonated and forms five‐membered chelate rings with the central Ni ion; the Ni ion lies on an inversion centre. The two hydroxamate O atoms in the complex anion are linked by short intramolecular hydrogen bonds. 相似文献
8.
Selcuk Demir Veysel T. Yilmaz William T. A. Harrison 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(7):o378-o380
The title compound, C6H8NO+·H2PO4−, consists of 2‐(hydroxymethyl)pyridinium and dihydrogenphosphate ions. The dihydrogenphosphate moieties are linked into chains by pairs of P—O—H⃛O—P hydrogen bonds. The 2‐(hydroxymethyl)pyridinium cations are connected to the dihydrogenphosphate units by O—H⃛O and N—H⃛O hydrogen bonds. Weak π–π interactions help to determine the interchain packing. 相似文献
9.
Zhiyong Wu Duanjun Xu Jingyun Wu Michael Y. Chiang 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(7):m374-m376
The title compound, [CuCl(CH4N2S)2]·2C11H6N2O·H2O, consists of molecules of a CuI–thiourea complex, free 4,5‐diazafluoren‐9‐one (dafone) and crystalline water. The planar complex molecule has trigonal coordination geometry around the CuI atom. The dafone and water molecules, which are hydrogen bonded to the CuI complex, are approximately coplanar with this complex. The crystal displays a sheet structure and π–π stacking is observed between neighbouring sheets. 相似文献
10.
Krishnan Ravikumar Balasubramanian Sridhar 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(4):o212-o214
In the title compound, 2C5H6N5+·C8H4O42−·C8H6O4·1.45H2O, the asymmetric unit comprises two adeninium cations, two half phthalate anions with crystallographic C2 symmetry, one neutral phthalic acid molecule, and one fully occupied and one partially occupied site (0.45) for water molecules. The adeninium cations form N—H⋯O hydrogen bonds with the phthalate anions. The cations also form infinite one‐dimensional polymeric ribbons via N—H⋯N interactions. In the crystal packing, hydrogen‐bonded columns of cations, anions and phthalate anions extend parallel to the c axis. The water molecules crosslink adjacent columns into hydrogen‐bonded layers. 相似文献
11.
Yang‐Yi Yang Xiao‐Ming Chen Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(3):e111-e112
In the asymmetric unit of the title compound, 2C12H24N+·C6H8O42?·H2O, the carboxylate ion lies about an inversion center, the water molecule is on a twofold axis and the sec‐ammonium cation is in a general position. Cations link the oxygen ends of two adjacent carboxylate anions to form an eight‐membered ring [N?O 2.683 (3) and 2.711 (3) Å]. The ion pair propagates as a linear chain and adjacent chains are linked through the water molecules [O?O 2.966 (3) Å] into layers. 相似文献
12.
Diego Venegas‐Yazigi A. B. P. Lever Alan J. Lough Andrs Vega Vernica Paredes‐García Ramn Latorre Juan Costamagna 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(8):e323-e324
The Ru atom in the title compound, [Ru(C6H5CN)2{P(C6H5)3}{C6H4(NH)2}(H2O)](BF4)2·H2O, has six‐coordinate octahedral geometry, with a trans arrangement of the triphenylphosphine ligand and the water molecule. The asymmetric unit contains one complex cation, two tetrafluoroborate anions and one solvent water molecule, which is disordered over two sites (ratio of occupancies 0.70:0.30). 相似文献
13.
Jan Fbry Radmila Krupkov Pemysl Vank Michal Duek 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(2):o73-o75
The title compound, 3CH6N+·HPO42−·H2PO4−, aggregates with the moieties interconnected by O—H⋯O and N—H⋯O hydrogen bonds, with O⋯O and N⋯O distances in the ranges 2.5366 (16)–2.5785 (14) and 2.7437 (16)–2.9967 (18) Å, respectively. Three C—H⋯O hydrogen bonds are also present, with C⋯O distances in the range 3.2310 (18)–3.3345 (17) Å. All H atoms are ordered. Structures with ordered hydrogenphosphate and dihydrogenphosphate components are rare. 相似文献
14.
Kenneth W. Henderson Alan R. Kennedy Arlene E. McKeown Robert E. Mulvey 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(6):674-675
The title complex, [ZrCl2(C4H8O)2(C14H14N)2]·0.5C7H8, was prepared in an unusual manner by utilizing [Mg{N(CH2Ph)2}2] as a ligand transfer reagent. The Zr atom lies in a distorted octahedral environment where steric repulsion from the large dibenzylamino ligands leads to a widening of the N—Zr—N angle [99.95 (9)°] and corresponding compression of other angles [Cl—Zr—Cl 160.95 (3)° and O—Zr—O 78.22 (7)°]. This distortion is compared with those found in the previously determined structures of the dimethylamino and diethylamino analogues. 相似文献
15.
Stepan S. Basok Gabriele Bocelli Eduard V. Ganin Marina S. Fonari Yurii A. Simonov 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(1):o50-o52
In the title compound, 2C8H18NO3+·2C7H6NO2−·3H2O, proton transfer occurs from the carboxylic acid group of the 4‐aminobenzoic acid (PABA) molecule to the amine group of the macrocycle, resulting in the formation of a salt‐like adduct. The anions are combined into helical chains which are further bound by the water molecules into sheets. The macrocyclic cations are situated between these layers and are bound to the anions both directly and via bridging water molecules. The structure exhibits a diverse system of hydrogen bonding. 相似文献
16.
Olof Kristiansson Patric Lindqvist‐Reis 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(2):163-164
The title compound, [Y(C2H6OS)2(H2O)6]Cl3, contains the cation [Y(H2O)6{(CH3)2SO}2]3+ with a distorted square antiprismatic geometry of the eight coordinated O atoms. The six water molecules are coordinated with an average Y—O distance of 2.38 (2) Å, ranging from 2.360 (3) to 2.404 (3) Å. Each water molecule forms two hydrogen bonds to the chloride anions with O—Cl distances ranging from 3.068 (4) to 3.422 (4) Å. The two dimethyl sulfoxide ligands, situated in the cis position with the O—Y—O angle equal to 83.22 (11)°, have Y—O distances of 2.269 (3) and 2.278 (3) Å. 相似文献
17.
Ming‐Tian Li Cheng‐Gang Wang Xu‐Cheng Fu 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(9):m434-m436
In the title compound, [Cd(C2H8N2)2(H2O)2](C10H8NO3S)2·2H2O, the CdII atom, located on an inversion centre, has a distorted octahedral coordination geometry formed by two ethylenediamine and two water molecules. 4‐Aminonaphthalene‐1‐sulfonate acts as a counter‐ion to balance the charge, and two antiparallel anions showing strong π–π stacking interactions are linked by paired N—H⋯O(sulfonate) hydrogen bonds into an isolated R22(16) dimer. The crystal structure is stabilized by the π–π stacking interactions and hydrogen bonds. 相似文献
18.
E. de Matos Gomes V. H. Rodrigues M. M. R. R. Costa E. Nogueira M. S. Belsley 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(9):m416-m418
The title compound, tetraaquabis(hydrogen l ‐malato)strontium(II) dihydrate, [Sr(C4H5O5)2(H2O)4]·2H2O, is a new non‐linear optical semi‐organic material with a second harmonic generation efficiency approximately 3.5 times greater than that of potassium dihydrogen phosphate. The malate anions are interconnected through directional O—H⋯O hydrogen bonding, in a head‐to‐tail arrangement, creating extended anionic chains along [001]. Neighbouring parallel chains are crosslinked by water molecules, resulting in a three‐dimensional architecture. The Sr2+ ion is coordinated by eight O atoms. This material is a new candidate for non‐linear optical applications since the crystals are stable and easy to grow. 相似文献
19.
Nobuyuki Matsushita 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(2):m33-m36
The title compound, {[PtIIPtIVI2(C2H8N2)4](HPO4)(H2PO4)I·3H2O}n, has a chain structure composed of square‐planar [Pt(en)2]2+ and elongated octahedral trans‐[PtI2(en)2]2+ cations (en is ethylenediamine) stacked alternately along the c axis and bridged by the I atoms; a three‐dimensionally valence‐ordered system exists with respect to the Pt sites. The title compound also has a unique cyclic tetramer structure composed of two hydrogenphosphate and two dihydrogenphosphate ions connected by strong hydrogen bonds [O⋯O = 2.522 (10), 2.567 (10) and 2.569 (11) Å]. The Pt and I atoms form a zigzag ⋯I—PtIV—I⋯PtII⋯ chain, with PtIV—I bond distances of 2.6997 (7) and 2.6921 (7) Å, interatomic PtII⋯I distances of 3.3239 (8) and 3.2902 (7) Å, and PtIV—I⋯PtII angles of 154.52 (3) and 163.64 (3)°. The structural parameters indicating the mixed‐valence state of platinum, expressed by δ = (PtIV—I)/(PtII—I), are 0.812 and 0.818 for the two independent I atoms. 相似文献
20.
Zun‐Ting Zhang Qian‐Guang Liu Xiao‐Bing Wang Jian‐Bin Zheng Kai‐Bai Yu 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(1):o29-o31
The title compound, 5‐hydroxy‐4′,7‐dimethoxyisoflavone, C17H14O5, is composed of a benzopyranone moiety, a phenyl moiety and two methoxy groups. The benzopyranone ring is not coplanar with the phenyl ring, the dihedral angle between them being 56.28 (3)°. The two methoxy groups are nearly coplanar with their corresponding rings, having C—C—O—C torsion angles of 2.9 (2) and 5.9 (2)°. The molecules are linked by C—H·O hydrogen bonds into sheets containing classical centrosymmetric (8) rings. The sheets are further linked by aromatic π–π stacking interactions and C—H·O hydrogen bonds into a supramolecular structure. 相似文献