共查询到20条相似文献,搜索用时 15 毫秒
1.
Vasyl Kinzhybalo Jan Janczak 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(8):m357-m360
The structure of the title compound, [Mg(C32H16N8)(H2O)]·2C5H4ClN, comprises MgPcH2O [Pc is phthalocyaninate(2−)] and 3‐chloropyridine solvent molecules interacting via O—H...N hydrogen bonds and π–π interactions. The central Mg atom is (4+1)‐coordinated by four equatorial isoindole N atoms of the macrocycle and by the O atom of an axial water molecule. The MgPcH2O molecule is not planar, the Mg atom being displaced by 0.496 (2) Å from the isoindole N4 plane towards the water O atom. MgPcH2O molecules related by a twofold screw axis interact via O—H...Nazamethine hydrogen bonds, forming a polymeric chain along the b axis, while those related by inversion centres form π–π interacting dimers. 相似文献
2.
Miaoli Zhu Liping Lu Xianglin Jin Pin Yang 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(3):m158-m159
The title compound, [ZnCl3(C4H12N5)], was prepared from aqueous solution and its structure determined. The coordination geometry around the Zn atom is a tetrahedron, with the central Zn atom bound to three Cl atoms and to one N atom of the biguanide ligand. The dihedral angle between the two guanidine groups is 67.86 (1)°. 相似文献
3.
Robert A. Burrow Janaina T. Facco Ernesto S. Lang David H. Farrar Alan J. Lough 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(1):m7-m9
The structure of the title compound, [PtCl2(C5H5N)(C2H6S)], consists of discrete molecules in which the Pt‐atom coordination is slightly distorted square planar. The Cl atoms are trans to each other, with a Cl—Pt—Cl angle of 176.60 (7)°. The pyridine ligand is rotated 64.5 (2)° from the Pt square plane and one of the Pt—Cl bonds essentially bisects the C—S—C angle of the dimethyl sulfide ligand. In the crystal structure, there are extensive weak C—H⋯Cl interactions, the shortest of which connects molecules into centrosymmetric dimers. A comparison of the structural trans influence on Pt—S and Pt—N distances for PtS(CH3)2 and Pt(pyridine) fragments, respectively, in square‐planar PtII complexes is presented. 相似文献
4.
brahim Uar Ahmet Bulut Okan Zafer Yeilel Halis
lmez Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):m563-m566
The title mononuclear complex, [Ni(C5H2N2O4)(C3H4N2)2(H2O)2] or [Ni(HOr)(im)2(H2O)2] (im is imidazole and H3Or is orotic acid, or 2,6‐dioxo‐1,2,3,6‐tetrahydropyrimidine‐4‐carboxylic acid), has been synthesized and the crystal structure determination is reported. The NiII ion in the complex has a distorted octahedral coordination geometry comprised of one deprotonated pyrimidine N atom and the adjacent carboxylate O atom of the orotate ligand, two tertiary imidazole N atoms and two aqua ligands. An extensive three‐dimensional network of OW—H⋯O and N—H⋯O hydrogen bonds, and π–π and π–ring interactions are responsible for crystal stabilization. 相似文献
5.
Miguel Angel Harvey Sergio Baggio Juan Carlos Muoz Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(7):m283-m285
The structure of [Zn(C19H12N5)2], which is monomeric and consists of neutral Zn(bbip‐H)2 entities [bbip‐H is the anionic form of bis(benzimidazolyl)pyridine, formed by the loss of one H atom], has been solved from a racemic twin. The Zn atom lies at a site with imposed 222 symmetry and the bbip‐H ligand has imposed twofold symmetry. The imidazolyl H atom is disordered over two symmetry‐related positions, thus raising the molecular symmetry as required by the space group. The angle between the planes of the two coordinated bbip‐H ligands is 84.6 (3)°, so defining a distorted octahedral environment around the metal atom. 相似文献
6.
Jean‐Claude Daran Pascale Lemoine Bernard Viossat 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):m210-m212
The asymmetric unit of the title compound, [Zn(C10H6NO2)2(C12H8N2)]·1.5C3H7NO, contains one monomeric zinc complex and 1.5 disordered dimethylformamide solvate molecules. The Zn atom is coordinated to one 1,10‐phenanthroline ligand and to two isoquinolinecarboxylate anions (IQC?) via their N and O atoms. The complex exhibits a distorted octahedral geometry around the ZnII atom, with the apical positions occupied by the O atoms of the IQC? ligands. The Zn atom lies 0.049 (1) Å out of the basal plane. The crystal packing is characterized by several hydrogen bonds. 相似文献
7.
Onur ahin Dursun Ali Kse Elif Fureyya Ozturkkan Hacali Necefoglu Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(6):m243-m245
The title compound, [Co(C7H4FO2)2(C6H6N2O)2(H2O)2], is a three‐dimensional hydrogen‐bonded supramolecular complex. The CoII ion resides on a centre of symmetry and is in an octahedral coordination environment comprising two pyridyl N atoms, two carboxylate O atoms and two O atoms from water molecules. Intermolecular N—H...O and O—H...O hydrogen bonds produce R32(6), R22(12) and R22(16) rings, which lead to two‐dimensional chains. An extensive three‐dimensional network of C—H...F, N—H...O and O—H...O hydrogen bonds and π–π interactions are responsible for crystal stabilization. 相似文献
8.
Azizolla Beheshti William Clegg Sophie H. Dale Reza Hyvadi 《Acta Crystallographica. Section C, Structural Chemistry》2009,65(8):m314-m316
The title complex, [Zn(C15H22BN6)(C2H3O2)] or (TpMe,Me)Zn(OAc), contains a tripodal tris(pyrazolyl)hydroborate ligand, a monodentate acetate ligand and a ZnII centre in a distorted tetrahedral coordination environment capped on one triangular face by a secondary Zn...O interaction with the second O atom of the acetate ligand. The four‐coordination of ZnII and the essentially monodentate character of the acetate ligand are due to the high steric demands of the ligand set, which prevent chelate formation and five‐coordination and lead to relatively long Zn—O and Zn—N bonds compared with related complexes of ZnII and other metals. 相似文献
9.
Allan J. Canty Brian W. Skelton Allan H. White 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(8):m405-m406
In the title compound, [Pd(C6H5)Cl(C3H4N2){P(C6H5)3}], the phenyl and Cl ligands lie mutually trans. The compound is the first structurally characterized complex with four monodentate Cl, P, N and (non‐carbenoid) C ligands in a square‐planar four‐coordinate palladium(II) environment. The pyrazole ligand is coplanar with the latter array. The pyrazole NH group forms a bifurcated hydrogen bond to Cl, with an intra‐ and intermolecular component. 相似文献
10.
Ahmet Bulut Hasan budak Gzde Sezer Canan Kazak 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(5):m228-m230
In the crystal structure of the title compound, bis(2‐aminopyrimidine‐κN1)bis[6‐methyl‐1,2,3‐oxathiazin‐4(3H)‐one 2,2‐dioxide(1−)‐κ2N3,O4]copper(II), [Cu(C4H4NO4S)2(C4H5N3)2], the first mixed‐ligand complex of acesulfame, the CuII centre resides on a centre of symmetry and has an octahedral geometry that is distorted both by the presence of four‐membered chelate rings and by the Jahn–Teller effect. The equatorial plane is formed by the N atoms of two aminopyrimidine (ampym) ligands and by the weakly basic carbonyl O atoms of the acesulfamate ligands, while the more basic deprotonated N atoms of these ligands are in the elongated axial positions with a strong misdirected valence. The crystal is stabilized by pyrimidine ring stacking and by intermolecular hydrogen bonding involving the NH2 moiety of the ampym ligand and the carbonyl O atom of the acesulfamate moiety. 相似文献
11.
Onur ahin Orhan Büyükgüngr Dursun Ali Kse Hacali Necefoglu 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(11):m510-m512
The title compound, [Cu(C7H5O3)2(C6H6N2O)2(H2O)2], is a two‐dimensional hydrogen‐bonded supramolecular complex. The CuII ion resides on a centre of symmetry and is in an octahedral coordination environment comprising two pyridine N atoms, two carboxylate O atoms and two O atoms from water molecules. Intermolecular N—H...O and O—H...O hydrogen bonds produce R22(4), R22(8) and R22(15) rings which lead to one‐dimensional polymeric chains. An extensive two‐dimensional network of N—H...O and O—H...O hydrogen bonds and C—H...π interactions are responsible for crystal stabilization. 相似文献
12.
13.
Hai‐Liang Zhu Anwar Usman Hoong‐Kun Fun Xian‐Jiang Wang 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(6):m218-m220
In the title compound, [Ag(C7H5O2)(C5H6N2)2], the AgI atom is tricoordinated by two independent pyridine N atoms and one benzoate O atom in a nearly planar geometry. An intramolecular N—H⃛O hydrogen bond forms an S(8) graph ring. The packing is built from molecular layers stabilized by two types of N—H⃛O hydrogen bond. Intermolecular Ag⃛N and intramolecular Ag⃛O contacts were also observed, together with three weak intermolecular C—H⃛π interactions. 相似文献
14.
Anne‐Christine Chamayou Chaitali Biswas Ashutosh Ghosh Christoph Janiak 《Acta Crystallographica. Section C, Structural Chemistry》2009,65(8):m311-m313
The crystal structure of the title compound, [Cu(C6H4NO2)(C2H3O2)(C3H4N2)(H2O)]·0.87H2O, has a square‐pyramidal‐coordinated CuII centre (the imidazole is trans to the picolinate N atom, the acetate is trans to the picolinate –CO2 group and the aqua ligand is in a Jahn–Teller‐elongated apical position) and has two symmetry‐independent molecules in the unit cell (Z′ = 2), which are connected through complementary imidazole–picolinate N—H...O hydrogen bonding. The two partially occupied solvent water molecules are each disordered over two positions. The disordered solvent water molecules, together with pseudosymmetry elements, support the notion that a crystal structure with multiple identical chemical formula units in the structural asymmetric unit (Z′ > 1) can represent a crystal `on the way', that is, a kinetic intermediate form which has not yet reached its thermodynamic minimum. Neighbouring molecules form π–π stacks between their imidazole and picolinate N‐heterocycles, with centroid–centroid distances in the range 3.582 (2)–3.764 (2) Å. 相似文献
15.
Pernille Harris Pauli Kofod Yong Sheng Song Erik Larsen 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(2):m58-m60
In the title compound, [Co(C6H15N3)(C7H15N2S)]S2O6·H2O, the Co—C bond distance is 1.9930 (13) Å, which is shorter than for related compounds with the linear 1,6‐diamino‐3‐thiahexan‐4‐ide anion in place of the macrocyclic 1‐thia‐4,7‐diazacyclodecan‐8‐ide anion. The coordinated carbanion produces an elongation of 0.102 (7) Å of the Co—N bond to the 1,4,7‐triazacyclononane N atom in the trans position. This relatively small trans influence is presumably a result of the triamine ligand forming strong bonds to the CoIII atom. 相似文献
16.
Ziliang Wang Linheng Wei 《Acta Crystallographica. Section C, Structural Chemistry》2009,65(12):m481-m484
The title two‐dimensional hydrogen‐bonded coordination compounds, [Cu(C8H5O4)2(C4H6N2)2], (I), and [Cu(C8H7O2)2(C4H6N2)2]·H2O, (II), have been synthesized and structurally characterized. The molecule of complex (I) lies across an inversion centre, and the Cu2+ ion is coordinated by two N atoms from two 4‐methyl‐1H‐imidazole (4‐MeIM) molecules and two O atoms from two 3‐carboxybenzoate (HBDC−) anions in a square‐planar geometry. Adjacent molecules are linked through intermolecular N—H...O and O—H...O hydrogen bonds into a two‐dimensional sheet with (4,4) topology. In the asymmetric part of the unit cell of (II) there are two symmetry‐independent molecules, in which each Cu2+ ion is also coordinated by two N atoms from two 4‐MeIM molecules and two O atoms from two 3‐methylbenzoate (3‐MeBC−) anions in a square‐planar coordination. Two neutral complex molecules are held together via N—H...O(carboxylate) hydrogen bonds to generate a dimeric pair, which is further linked via discrete water molecules into a two‐dimensional network with the Schläfli symbol (43)2(46,66,83). In both compounds, as well as the strong intermolecular hydrogen bonds, π–π interactions also stabilize the crystal stacking. 相似文献
17.
Hyunsoo Park Urs Geiser Gregory J. Halder John A. Schlueter 《Acta Crystallographica. Section C, Structural Chemistry》2008,64(10):m327-m329
The title compound, [Zn4(C2H2N3)3(NCS)3S]n, is a three‐dimensional coordination polymer consisting of tetrahedral SZn4 clusters bridged by triazole ligands. In the tetrahedral unit, three Zn atoms are connected to six bridging triazolate ligands, whereas the fourth Zn atom (site symmetry 3m) is bonded to three terminal thiocyanate anions that protrude into the void space created by the Zn–triazolate network. The network prototype is simple cubic, but a strong distortion along a body diagonal and the imposition of a polar direction by the arrangement of the molecular constituents lead to the trigonal space group R3m. This study demonstrates the use of the 3‐mercapto‐1,2,4‐triazole ligand as an effective source for sulfide ions in the synthesis of sulfide‐based coordination polymers. 相似文献
18.
Giuseppe Bruno Santo Lanza Francesco Nicol Giuseppe Tresoldi Giuseppe Rosace 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(5):m316-m318
The title compound, [PdPtCl(C3H5)(C6H10N2S2)(C17H14NP)]·CHCl3, was obtained by deprotonation of the initial platinum(II) complex of the dithioxamide and subsequent reaction with [Pd(η3‐C3H5)(μ‐Cl)]2. Both metal atoms exhibit a square‐planar coordination geometry, with the two planes forming a dihedral angle of 21.7 (2)°. The dithioxamide bis‐chelating bridge is flat. 相似文献
19.
Zora Popovi
eljka Soldin Gordana Pavlovi 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(7):m272-m274
The title compound, [Hg(C6H4NO2)I(C6H5NO2)], has twofold symmetry along the Hg—I bond. The HgII ion coordinates one I atom [at 2.6045 (4) Å], two N and two O atoms [at 2.298 (3) and 2.481 (2) Å] from one picolinate ion, and one picolinic acid molecule in a very irregular trigonal–bipyramidal coordination. The single hydroxy H atom required for chemical neutrality is both statistically (by crystal symmetry) and structurally disordered, and is involved in an intermolecular O—H⋯O hydrogen bond [O⋯O = 2.455 (4) Å], connecting the molecules into one‐dimensional infinite chains along the [101] direction. 相似文献
20.
Cheng‐Bing Ma Chang‐Neng Chen Qiu‐Tian Liu 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(10):m469-m472
In the title compound, [Mn(C7H3NO4)(C3H4N2)(C12H8N2)(H2O)], the MnII centre is surrounded by one bidentate phenanthroline ligand [Mn—N = 2.383 (3) and 2.421 (3) Å], one tridentate dipicolinate ligand [Mn—N = 2.300 (3) Å, and Mn—O = 2.300 (2) and 2.357 (2) Å], one monodentate imidazole ligand [Mn—N = 2.238 (3) Å] and one water molecule [Mn—O = 2.157 (3) Å]. It displays a distorted pentagonal‐bipyramidal geometry, with neighbouring angles within the equatorial plane ranging from 68.05 (9) to 77.48 (10)°. Intermolecular O—H...O hydrogen bonds link the molecules into infinite chains. The chains are crosslinked by hydrogen bonds involving the carboxyl O atoms of the dipicolinate ligand and the protonated imidazole N atom, leading to an infinite two‐dimensional network sheet packing mode. The complete solid‐state structure can be described as a three‐dimensional supramolecular framework, stabilized by these intermolecular hydrogen‐bonding interactions and π–π stacking interactions involving the phenanthroline rings. 相似文献