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1.
Jan Janczak 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(7):m330-m332
The title manganese(III) phthalocyaninate (Pc) complex, viz. iodo[phthalocyaninato(2−)]manganese(III) hemi(diiodine), [Mn(C32H16N8)I]·0.5I2 or (MnPcI)2·I2, was obtained from the reaction of pure powdered manganese with phthalonitrile under oxidation conditions of iodine vapour. The phthalocyaninato(2−) residue is not strictly planar and the Mn atom is five‐coordinate, having distorted square‐pyramidal geometry and residing 0.262 (2) Å above the plane defined by the four isoindole N atoms of the phthalocyaninate macrocycle. The neutral I2 molecule bridges the iodo[phthalocyaninato(2−)]manganese(III) molecules, forming a centrosymmetric dimeric structure. 相似文献
2.
Davide Barreca Franco Benetollo Simona Garon Eugenio Tondello Pierino Zanella 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):e290-e291
The title compound, di‐μ‐diethylamido‐N:N‐bis[chlorodimethyltin(IV)], consists of discrete [Sn2Cl2(CH3)4(C4H10N)2] dimer molecules, with Sn atoms linked by bridging diethylamido groups. The coordination geometry about the metal atom is distorted trigonal bipyramidal, with the two methyl C atoms and one N atom in the equatorial plane, and the Cl and second N atom in axial positions. 相似文献
3.
Jos S. Casas Emilia García‐Martínez María Soledad García‐Tasende Agustín Snchez Jos Sordo Ezequiel M. Vzquez‐Lpez María Jos Vidarte 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(8):932-933
The title compound, [SnCl2(CH3)(C6H5)(C5H8N2)2], was obtained by reaction of dichloromethylphenyltin(IV) and 3,5‐dimethylpyrazole (dmpz) in chloroform, and was recrystallized from acetone. The structure consists of octahedral all‐trans [SnMePhCl2(dmpz)2] molecules, with the Sn atom coordinated to two C [Sn—C 2.127 (5) and 2.135 (4) Å], two Cl [Sn—Cl 2.5753 (8) Å] and two N atoms [Sn—N 2.357 (3) Å]. The dmpz ligands, bound to the metal through their unprotonated N atoms, form weak intra‐ and intermolecular hydrogen bonds with the Cl ligands via their NH groups, giving rise to a polymeric chain along the c axis. 相似文献
4.
Yang Peng Yi‐Zhi Li Song‐Song Bao Li‐Min Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(7):m302-m304
In the title compound, [Co(C2H8N2)3]2[Ru2(C2H4O7P2)2Cl2]Cl·3H2O, the building unit contains two crystallographically independent dinuclear [Ru2(hedp)2Cl2]5− anions, where hedp [viz. (1‐hydroxyethylidene)diphosphonate] serves as a bis‐chelating bridging ligand, two types of [Co(en)3]3+ cations, one uncoordinated Cl− anion and five water molecules of crystallization. The [Ru2(hedp)2Cl2]5− anions are connected to one another, forming one‐dimensional chains along the a axis. The [Co(en)3]3+ cations are located between these chains and lie across inversion centres. An extensive series of hydrogen bonds lead to the formation of a three‐dimensional supramolecular network structure, with channels generated along the [100] direction. The uncoordinated water molecules and Cl− anions reside in these channels. 相似文献
5.
Cedric Dielemann Dominique Matt Peter G. Jones Holger Thnnessen 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(5):o247-o249
The title compound, 25,26:27,28‐bis(methylenedioxy)pentacyclo[19.3.1.13,7.19,13.115,19]octacosa‐1(25)3,5,7(28),9,11,13(27),15,17,19(26),21,23‐dodecaene dichloromethane solvate, C30H24O4·CH2Cl2, possesses crystallographic twofold symmetry in both components. The calixarene shows a pinched cone conformation with an elliptical cavity, in which the guest dichloromethane solvent molecule is accommodated. The contact distance between guest and host (H⋯ring centroid = 2.44 Å) is extremely short. 相似文献
6.
E. Yang Zhao‐Ji Li Jian Zhang Yu‐Biao Chen Yuan‐Gen Yao 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(9):m457-m459
The reaction of cadmium chloride with pyridine‐2,6‐dicarboxylic acid (PDA) and 98% H2SO4 in ethanol led to the formation of the title compound, bis[μ‐6‐(ethoxycarbonyl)pyridine‐2‐carboxylato]‐1:2κ4O6,N,O2:O2;1:2κ4O2:O2,N,O6‐bis[diaquachlorocadmium(II)] dihydrate, [Cd2(C9H8NO4)2Cl2(H2O)4]·2H2O. PDA is esterified to monoethyl pyridine‐2,6‐dicarboxylate (MEPD) by the catalysis of H2SO4 during the reaction. The dinuclear CdII complex lies about an inversion centre and the unique Cd atom has a pentagonal–bipyramidal geometry. The two Cd atoms are bridged by two carboxylate O atoms, forming a planar Cd2O2 unit. Stair‐like chains are formed via O—H⋯Cl hydrogen bonds and these are further arranged into two‐dimensional layers via hydrogen bonds involving solvate water molecules. 相似文献
7.
Li‐Ming Wu Ling Chen Jingcao Dai Ping Lin Wen‐Xin Du Xin‐Tao Wu 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):e382-e382
The title compound, [Sn(C5H5NS)2(C2H4S2)2], was obtained from a 1:2 mixture of bis(ethane‐1,2‐dithiolato)tin(IV) and 2‐mercaptopyridine. The molecules are discrete monomeric trans‐octahedral units, with the SnIV atom at the centre of symmetry, planar 2‐mercaptopyridine zwitterions and SnS2C2 groups in twist–envelope conformations. The 2‐mercaptopyridine ligands are monodentate and are bonded through the S atoms. The S—Sn distances between the S atom of edt (edt is ethane‐1,2‐dithiolate) and the Sn atom are 2.473 (1) and 2.505 (1) Å, which are slightly longer than the S—Sn distance in Sn(edt)2 of 2.390 (1) Å. The bond between the 2‐mercaptopyridine S atom and the Sn atom are, remarkably, weaker than the S—Sn bond involving edt. 相似文献
8.
Andreas Decken Gisia L. Pisegna Christopher M. Vogels Stephen A. Westcott 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):1071-1072
The title compound, [PdCl2(C7H9N)2]·2C2H6OS, crystallizes with two molecules of dimethyl sulfoxide (DMSO) in monoclinic space group P21/n. The Pd complex is centrosymmetric and thus the phenyl rings of the benzylamine ligands are exo with respect to one another. The crystal packing reveals NH?O and CH?Cl hydrogen bonds between the organometallic molecule and the DMSO molecules, resulting in infinite chains. The distances of the ortho‐H atoms on the phenyl ring to the metal center are in the range 4.71–5.34 Å, precluding any significant intramolecular Pd?H interactions. 相似文献
9.
Diego Venegas‐Yazigi Hameed Mirza A. B. P. Lever Alan J. Lough Juan Costamagna Andrs Vega Ramn Latorre 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(6):e245-e246
The Ru atom in the title compound, [RuCl2{P(C6H5)3}2{C6H4(NH)2}]·1.33CH3OH·0.33CH2Cl2, shows a six‐coordinate octahedral geometry, with a trans arrangement of the triphenylphosphine groups. One and a half molecules of complex, two molecules of methanol and a half molecule of dichloromethane form the asymmetric unit, with crystallographic twofold rotation symmetry for the complex molecule in a special position. 相似文献
10.
F. Bentefrit P. Lemoine D. Nguyen‐Huy G. Morgant B. Viossat 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(8):m331-m333
The asymmetric unit of the title compound, [Ni(C11H16ClN5)2]Cl2·C3H7NO, contains one monomeric nickel(II) complex cation, two Cl− anions and one dimethylformamide solvent molecule. The Ni atom is coordinated to each of two 1‐(p‐chlorophenyl)‐5‐isopropylbiguanide (proguanil) ligands via two N atoms. The complex exhibits a square‐planar coordination, with the Ni atom lying 0.021 (2) Å out of the basal plane. The crystal packing is characterized by several hydrogen bonds. 相似文献
11.
B. de Castro C. Freire M. Teresa Duarte M. F. Minas da Piedade I. C. Santos 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(4):370-372
In the title complex, trans‐{2,2′‐[cyclohexane‐1,2‐diylbis(nitrilomethylidyne)]diphenolato‐κ4O,N,N′,O′}nickel(II)–chloroform (1/1), [Ni(C20H20N2O2)]·CHCl3, the Ni atom has a square‐planar geometry, slightly tetrahedrally distorted. The Ni—N and Ni—O bonding distances are within the expected ranges for Ni–Schiff base derivatives. The diimine bridge has a gauche conformation with the cyclohexyl ring almost coplanar with the NiN2O2 plane. The complex molecules pack in dimers with an Ni?Ni distance of 3.59 (1) Å and form a three‐dimensional structure displaying a herring‐bone configuration. Channels are occupied by solvent molecules, which are involved in C—H?O hydrogen bonds with the ligand O atoms. 相似文献
12.
John Nicolson Low Justo Cobo Manuel Nogueras Adolfo Snchez Braulio Insuasty Harlen Torres 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(1):o39-o41
2,2‐Dimethyl‐5‐[3‐(4‐methylphenyl)‐2‐propenylidene]‐1,3‐dioxane‐4,6‐dione, C16H16O4, crystallizes in the triclinic space group , with two molecules in the asymmetric unit. These molecules and a centrosymmetrically related pair, linked together by weak C—H?O hydrogen bonds, form a tetramer. 5‐[3‐(4‐Chlorophenyl)‐2‐propenylidene]‐2,2‐dimethyl‐1,3‐dioxane‐4,6‐dione, C15H13ClO4, also crystallizes in the triclinic space group , with one molecule in the asymmetric unit. Centrosymmetrically related molecules are linked together by weak C—H?O hydrogen bonds to form dimers which are further linked by yet another pair of centrosymmetrically related C—H?O hydrogen bonds to form a tube which runs parallel to the a axis. 相似文献
13.
Maren Pink Doyle Britton Wayland E. Noland Matthew J. Pinnow 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(10):1271-1273
The molecular structures of the title compounds, 2,4,6‐trichlorophenylisonitrile (IUPAC name: 2,4,6‐trichlorophenyl isocyanide), C7H2Cl3N, and 2,4,6‐trichlorobenzonitrile, C7H2Cl3N, are normal. The two structures are not isomorphous, but do contain similar two‐dimensional layers in which pairs of molecules are held together by pairs of Cl?CN [3.245 (3) Å] or Cl?NC [3.153 (2) Å] interactions. The two‐dimensional isomorphism is lost through different layer‐stacking modes. 相似文献
14.
Seik Weng Ng A. Aziz Yang Farina Abdul Hamid Othman Ibrahim Baba K. Sivakumar Hoong‐Kun Fun 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(3):e84-e85
The title compound, [Sn(CH3)2(C5H10NO2S2)2], has crystallographic mirror symmetry (C—Sn—C on mirror plane) and the coordination polyhedron around the Sn atom is a tetrahedron [C—Sn—C 139.3 (2)° and S—Sn—S 82.3 (1)°] distorted towards a skew‐trapezoidal bipyramid owing to an intramolecular Sn?S contact [3.0427 (6) Å]. The molecules are linked into a linear chain by intermolecular O—H?O hydrogen bonds [O?O 2.646 (3) Å]. 相似文献
15.
John Kouvetakis Cole Ritter Thomas L. Groy 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(12):e564-e564
The title molecule is dimeric, i.e. di‐μ‐trimethylsiloxy‐bis(dichloroaluminium), [Al2Cl4(C3H9Si)2], and possesses exact crystallographic inversion symmetry. The O atoms of the trimethylsiloxy groups bridge the two Al atoms to form a four‐membered ring. The Si—O bond distance [1.711 (3) Å], the Al—O mean bond distance [1.806 (4) Å] and the mean Si—C bond distance [1.875 (6) Å] appear to agree well with standard data. Mean values for C—Si—C, O—Si—C, and Si—O—Al angles are 112.9 (3), 105.8 (2), and 131.8 (2)° repectively. The two ring angles O—Al—O and Al—O—Al are 84.43 (16) and 95.57 (16)°, respectively. 相似文献
16.
Joo A. S. Bomfim Carlos A. L. Filgueiras R. Alan Howie Janet M. S. Skakle James L. Wardell 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m526-m529
The title compounds, dichloro‐ and dibromoneophylphenyltin, [SnCl2(C6H5)(C10H13)] and [SnBr2(C6H5)(C10H13)], respectively, are remarkable for the `U' shape of the molecules, whereby the two phenyl groups are brought face‐to‐face in an arrangement that permits intermolecular C—H⋯π bonds to connect the molecules into layers parallel to (100). Intermolecular Sn–halide bonds are notably absent from the structures. 相似文献
17.
Shujing Dong Wenxiang Zhu Daqiang Yuan Xi Yan 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(7):o376-o377
A new p‐tert‐butylthiacalix[4]arene derivative, C72H68N4O4S4·2CH2Cl2, has been synthesized and is comprised of one tetra‐p‐tert‐butyltetrakis(2‐cyanobenzyloxy)tetrathiacalix[4]arene and two dichloromethane molecules. The calix[4]arene molecule is centrosymmetric and adopts an unusual 1,2‐alternate conformation viaπ–π interactions between adjacent cyanophenyl rings on the lower rim of the parent thiacalix[4]arene system. 相似文献
18.
Ramis Rao Subramanian Shanmuga S. Anandan Kuan Hiang Kwek Kum Sang Low S. Shanmuga Sundara Raj Hoong‐Kun Fun Ibrahim Abdul Razak John V. Hanna Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):e292-e294
The monoclinic cell of dicyclohexylammonium 2,4‐dichlorophenoxyacetate contains four C12H24N+·C5H8Cl2O3? ion pairs. The ammonium N atom is hydrogen bonded to the oxygen ends of two carboxyl groups to form a 12‐membered O—C—O?HNH?O—C—O?HNH ring. In (2,4‐dichlorophenoxylacetato)bis(triphenylphosphine)silver(I), [Ag(C8H5Cl2O3)(C18H15P)2], the carboxyl CO2 unit chelates to the Ag atom in an anisobidentate manner [Ag—O = 2.436 (2) and 2.517 (2) Å]; the Ag atom shows distorted tetrahedral geometry. 相似文献
19.
Alan R. Kennedy Fraser R. N. Waterson 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(11):o613-o615
The dichloromethane disolvate of 4,4′‐(azinodimethylene)dipyridinium chloranilate, C12H12N42+·C6Cl2O42−·2CH2Cl2, consists of one‐dimensional hydrogen‐bonded molecular tapes that propagate along the [10] direction. Both cations and anions lie across centres of inversion. The molecular tapes are planar but do not stack in the expected segregated manner, instead having chloranilate anions sandwiched between azine groups. 相似文献
20.
Brian T. Holmes Clifford W. Padgett William T. Pennington 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(3):o114-o116
The title compound, C34H26N4·2CH2Cl2, lies about an inversion center. The solvent molecules interact with the benzene molecule both through C—H⃛N hydrogen bonding to span pyridine N atoms of adjacent vinyl groups, possibly stabilizing the rotational conformation observed, and through a π interaction between a dichloromethane Cl atom and a pyridyl ring C—C bond of a c‐glide‐related molecule. The benzene molecules form stacks along the a axis such that two of the four olefin groups are properly oriented for photoreactivity (2+2 cyclodimerization). 相似文献