scholarly journals 4,4′,6,6′-Tetrabromo-2,2′-[(E,E)-ethane-1,2-diylbis(nitrilomethanylylidene)]diphenol

2012 ◽  
Vol 68 (8) ◽  
pp. o2348-o2348 ◽  
Author(s):  
Hadi Kargar ◽  
Reza Kia ◽  
Amir Adabi Ardakani ◽  
Muhammad Nawaz Tahir
Keyword(s):  
Schiff Base ◽  
Hydrogen Bonds ◽  
Intermolecular Interactions ◽  
Schiff Base Ligand ◽  
Title Compound ◽  
Inversion Center ◽  
Asymmetric Unit ◽  
Tetradentate Schiff Base ◽  
Compound C

The asymmetric unit of the title compound, C16H12Br4N2O2, comprises half of a potential tetradentate Schiff base ligand. The whole molecule is generated by an inversion center located in the middle of the C—C bond of the ethylene segment. There are intramolecular O—H...N hydrogen bonds makingS(6) ring motifs. In the crystal, no significant intermolecular interactions are observed.

scholarly journals Bis(1,3-thiazol-2-aminium) hexachloridostannate(IV)

2014 ◽  
Vol 70 (7) ◽  
pp. m269-m269 ◽  
Author(s):  
Ruiting Xue ◽  
Lingmin Kong
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
General Position ◽  
Three Dimensional ◽  
Inversion Center ◽  
Asymmetric Unit ◽  
Electrostatic Forces ◽  
Compound C

The asymmetric unit of the title compound, (C3H5N2S)2[SnCl6], contains one cation in a general position and one-half of the dianion situated on an inversion center. The geometry of the [SnCl6]2−dianion is almost regular octahedral. In the crystal, weak N—H...Cl and N—H...S hydrogen bonds and electrostatic forces link cations and anions into a three-dimensional framework.

scholarly journals 1,1′-(Ethane-1,2-diyl)bis[3-(4-chlorobenzoyl)thiourea]

IUCrData ◽  
2016 ◽  
Vol 1 (6) ◽  
Author(s):  
Salima M. Abusaadiya ◽  
Bohari M. Yamin ◽  
Fadzlee Ngatiman ◽  
Siti Aishah Hasbullah
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Inversion Center ◽  
Asymmetric Unit ◽  
Axis Direction ◽  
Compound C ◽  
Ethylene Group

The title compound, C18H16Cl2N4O2S2, consists of two benzoylthioureido groups connected by an ethylene group. The asymmetric unit consists of one half of the molecule which lies about an inversion center. Both thiourea moieties maintain theirtransgeometry. The structure is stabilized by intermolecular N—H...S hydrogen bonds that form chains along theb-axis direction.

scholarly journals Diisopropylammonium (3,6-dichlorobenzene-1,2-dithiolato)cuprato(III) tetrahydrofuran monosolvate

IUCrData ◽  
2016 ◽  
Vol 1 (11) ◽  
Author(s):  
Jesús Barrio ◽  
Esther Delgado ◽  
Diego Hernández ◽  
Elisa Hernández ◽  
Josefina Perles ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Intermolecular Interactions ◽  
Title Compound ◽  
Solvent Molecule ◽  
Asymmetric Unit ◽  
Coordination Environment ◽  
Compound C ◽  
Square Planar

The asymmetric unit of the title compound, (C6H16N)[Cu(C6H2Cl2S2)2]·C4H8O, comprises a [Cu(SC6H2Cl2S)2]−anion, an [iPr2NH2]+cation and a solvent tetrahydrofuran molecule. The CuIIIatom has an almost square-planar CuS4coordination environment. In the crystal, the anion and the solvent molecule are linkedviaN—H...O and N—H...S hydrogen bonds involving the diisopropylammonium cation. There are no other significant intermolecular interactions present.

scholarly journals Crystal structure of (E)-N1-[(anthracen-9-yl)methylidene]-N4-phenylbenzene-1,4-diamine

2017 ◽  
Vol 73 (2) ◽  
pp. 137-140
Author(s):  
Md. Serajul Haque Faizi ◽  
Ashanul Haque ◽  
Musheer Ahmad ◽  
Irina A. Golenya
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Condensation Reaction ◽  
Asymmetric Unit ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
Independent Molecules

The title compound, C27H20N2, a Schiff base synthesizedviaa condensation reaction between anthracene-9-carbaldehyde andN-phenyl-p-phenylenediamine, crystallizes with three independent molecules in the asymmetric unit. The three molecules have slightly varying overall conformations, all havingtransconformations with respect to the C=N bond. In the crystal, the packing features N—H...N hydrogen bonds, which connect molecules into chains extending along thec-axis direction, interlinked by C—H...π interactions (minimum H...Cg= 2.65 Å) into sheets lying parallel to (001).

scholarly journals 2,2′-Dihydroxy-N,N′-(ethane-1,2-diyl)dibenzamide

2013 ◽  
Vol 69 (2) ◽  
pp. o201-o201 ◽  
Author(s):  
Daniel Pereira da Costa ◽  
Sabrina Madruga Nobre ◽  
Bruna Gonçalves Lisboa ◽  
Juliano Rosa de Menezes Vicenti ◽  
Davi Fernando Back
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Inversion Center ◽  
Asymmetric Unit ◽  
Compound C ◽  
Ring Motif

The asymmetric unit of the title compound, C16H16N2O4, contains one half-molecule, the whole molecule being generated by an inversion center located at the mid-point of the C—C bond of the central ethane group. An intramolecular O—H...O hydrogen bond forms anS(6) ring motif. In the crystal, molecules are connectedviaN—H...O hydrogen bonds, generating infinite chains along [1-10].

scholarly journals 2-Phenyl-1H-imidazol-3-ium hydrogen fumarate–fumaric acid (2/1)

2012 ◽  
Vol 68 (4) ◽  
pp. o1021-o1021
Author(s):  
Hong Guo ◽  
Xin Zhang ◽  
Jian-Xia Li
Keyword(s):  
Hydrogen Bonds ◽  
Fumaric Acid ◽  
Title Compound ◽  
Inversion Center ◽  
Acid Molecule ◽  
Asymmetric Unit ◽  
Compound C

The asymmetric unit of the title compound, C9H9N2+·C4H3O4−·0.5C4H4O4, consists of one 2-phenylimidazolium cation, one hydrogen fumarate anion and half a fumaric acid molecule, which lies on an inversion center. N—H...O and O—H...O hydrogen bonds connect the cations, anions and fumaric acid molecules into sheets parallel to the (102) plane.

scholarly journals 2,3,5,6-Tetrafluoro-1,4-bis({[(thiophen-2-yl)methylidene]amino}methyl)benzene

2014 ◽  
Vol 70 (7) ◽  
pp. o749-o749
Author(s):  
Ning Gao ◽  
Hai-Kun Luo ◽  
Rui-Rui Qin ◽  
Ming-Yang He
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Schiff Base Ligand ◽  
Title Compound ◽  
Inversion Symmetry ◽  
Compound C ◽  
Benzene Rings ◽  
Supramolecular Chains ◽  
Methyl Benzene

In the title compound, C18H12F4N2S2, a bis-thiophenyl Schiff base ligand with a perifluorinated aromatic core, the complete molecule is generated by crystallographic inversion symmetry. The thiophene and tetrafluorinated benzene rings are oriented at a dihedral angle of 77.38 (4)°. The crystal structure exhibits C—H...F hydrogen bonds, resulting in supramolecular chains along thec-axis direction.

scholarly journals (E)-3-[(3-Ethoxy-2-hydroxybenzylidene)amino]benzoic acid

2012 ◽  
Vol 68 (4) ◽  
pp. o1035-o1035
Author(s):  
Hadi Kargar ◽  
Zahra Sharafi ◽  
Reza Kia ◽  
Muhammad Nawaz Tahir
Keyword(s):  
Hydrogen Bond ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Benzoic Acid ◽  
Schiff Base Ligand ◽  
Title Compound ◽  
Compound C ◽  
Benzene Rings ◽  
Ring Motif ◽  
Amino Benzoic Acid

In the title compound, C16H15NO4, a potential bidentateN,O-donor Schiff base ligand, the benzene rings are inclined to one another by 4.24 (12)°. The molecule has anEconformation about the C=N bond. An intramolecular O—H...N hydrogen bond makes anS(6) ring motif. In the crystal, pairs of O—H...O hydrogen bonds link the molecules, forming inversion dimers withR22(8) ring motifs. These dimers are further connected by C—H...O interactions, forming a sheet in (104). There is also a C—H...π interaction present involving neighbouring molecules.

scholarly journals N-[2-(2,2-Dimethylpropanamido)pyrimidin-4-yl]-2,2-dimethylpropanamiden-hexane 0.25-solvate hemihydrate

2013 ◽  
Vol 69 (11) ◽  
pp. o1617-o1618
Author(s):  
Borys Ośmiałowski ◽  
Arto Valkonen ◽  
Lilianna Chęcińska
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Solvent Molecule ◽  
Inversion Center ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules

The asymmetric unit of the title compound, C14H22N4O2·0.25C6H14·0.5H2O, contains two independent molecules of 2,4-bis(pivaloylamino)pyrimidine (M) with similar conformations, one water molecule and one-halfn-hexane solvent molecule situated on an inversion center. In one independentMmolecule, one of the twotert-butyl groups is rotationally disordered between two orientations in a 3:2 ratio. Then-hexane solvent molecule is disordered between two conformations in the same ratio. The water molecule bridges two independentMmoleculesviaO—H...O, N—H...O and O—H...N hydrogen bonds into a 2M·H2O unit, and these units are further linked by N—H...N hydrogen bonds into chains running in the [010] direction. Weak C—H...O interactions are observed between the adjacent chains.

Hexaaquacadmium(II) bis{[N-(2-oxidobenzylidene)alanylglycinato]cuprate(II)} dodecahydrate

2006 ◽  
Vol 62 (7) ◽  
pp. m1582-m1583
Author(s):  
Wen-Long Liu ◽  
Yan-Yan Zhang ◽  
Yao Lu ◽  
Xiao-Ya Hu
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Title Compound ◽  
Inversion Center ◽  
Tetradentate Schiff Base ◽  
Square Planar ◽  
Distorted Octahedral

In the title compound, [Cd(H2O)6][Cu(C12H11N2O4)]2·12H2O, the Cd2+ ion lies on an inversion center and the coordination by six aqua ligands is slightly distorted octahedral. The CuII atom has a square-planar coordination with two N and two O atoms of the tetradentate Schiff base ligand L 3−, which was derived from alanylglycine and salicylaldehyde. The [Cd(H2O)6]2+ cations and [CuL]− anions each form columns along the c axis; these are well segregated from each other.

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