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 1-(2-Bromophenyl)-3-(4-chlorobutanoyl)thiourea

2012 ◽  
Vol 68 (4) ◽  
pp. o1267-o1267 ◽  
Author(s):  
Mohd Sukeri Mohd Yusof ◽  
Nur Farhana Embong ◽  
Suhana Arshad ◽  
Ibrahim Abdul Razak
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Dihedral Angles ◽  
Asymmetric Unit ◽  
Compound C ◽  
The Mean ◽  
Independent Molecules ◽  
Ring Motif

The asymmetric unit of the title compound, C11H12BrClN2OS, consists of two crystallographically independent molecules. In each molecule, the butanoylthiourea unit is nearly planar, with maximum deviations of 0.1292 (19) and 0.3352 (18) Å from the mean plane defined by nine non-H atoms, and is twisted relative to the terminal benzene ring with dihedral angles of 69.26 (7) and 82.41 (7)°. An intramolecular N—H...O hydrogen bond generates anS(6) ring motif in each butanoylthiourea unit. In the crystal, N—H...O hydrogen bonds link the two independent molecules together, forming anR22(12) ring motif. The molecules are further connected into a tape along thecaxisviaN—H...S and C—H...S hydrogen bonds.

scholarly journals 2,4-Dibromo-6-[(2-hydroxy-5-methylanilino)methylidene]cyclohexa-2,4-dienone

IUCrData ◽  
2018 ◽  
Vol 3 (3) ◽  
Author(s):  
Tarun Kumar Pal ◽  
Md Dulal Hossain ◽  
Md Chanmiya Sheikh ◽  
Ryuta Miyatake ◽  
Md Ashraful Alam
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Dihedral Angles ◽  
Asymmetric Unit ◽  
Compound C ◽  
Benzene Rings ◽  
Independent Molecules ◽  
Ring Motif

The new bromo-substituted title compound, C14H11Br2NO2, was synthesized by the condensation of 3,5-dibromosalicylaldehyde and 2-amino-4-methyl phenol. The asymmetric unit consists of two crystallographically independent molecules (AandB), which are related to each other by a pseudo-inversion centre. Both molecules are almost planar; dihedral angles between the two benzene rings are 11.40 (11)° forAand 3.05 (12)° forB. In each molecule, there is an intramolecular N—H...O hydrogen bond with anS(6) ring motif. In the crystal, two independent molecules are linked by O—H...O hydrogen bonds, forming a pseudo-inversionA–Bdimer.

scholarly journals N-(2-Nitrophenyl)thiophene-2-carboxamide

2014 ◽  
Vol 70 (5) ◽  
pp. o613-o613 ◽  
Author(s):  
Rodolfo Moreno-Fuquen ◽  
Alexis Azcárate ◽  
Alan R. Kennedy
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Dihedral Angles ◽  
Asymmetric Unit ◽  
Compound C ◽  
Ring Motif

The title compound, C11H8N2O3S, shows two molecules per asymmetric unit, with the dihedral angles between the benzene and thiophene rings of 13.53 (6) and 8.50 (5)° being a notable difference between them. An intramolecular N—H...O hydrogen-bond in each molecule generates anS(6) ring motif. The crystal packing shows no classical hydrogen bonds with the molecules being packed to form weak C—H...O and C—H...S interactions leading toR22(9) andR44(25) rings which are edge-shared, giving layers parallel to (010).

scholarly journals Crystal structure ofS-hexyl (E)-3-(2-hydroxybenzylidene)dithiocarbazate

2016 ◽  
Vol 72 (3) ◽  
pp. 290-292 ◽  
Author(s):  
M. S. Begum ◽  
M. B. H. Howlader ◽  
M. C. Sheikh ◽  
R. Miyatake ◽  
E. Zangrando
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules ◽  
Ring Motif

The title compound, C14H20N2OS2[systematic name:S-hexyl (E)-2-(2-hydroxybenzylidene)hydrazine-1-carbodithioate], crystallizes with four independent molecules (A–D) in the asymmetric unit. All four molecules adopt anEconformation with respect to the C=N bond of the benzylidene moiety and have an intramolecular O—H...N hydrogen bond generating anS(6) ring motif. In the crystal, theAandDmolecules are connected by a pair N—H...S hydrogen bonds, forming a dimer with anR22(8) ring motif. In the case of moleculesBandC, they are linked to themselves by pairs of N—H...S hydrogen bonds, formingB–BandC–Cinversion dimers withR22(8) ring motifs.

scholarly journals Bis(2-hydroxybenzaldehyde oxime)O,O′-butane-1,4-diyldicarbonyl ether

2009 ◽  
Vol 65 (6) ◽  
pp. o1309-o1309
Author(s):  
Bijan Etemadi ◽  
Reza Kia ◽  
Hashem Sharghi ◽  
Mona Hosseini Sarvari
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Membered Ring ◽  
Asymmetric Unit ◽  
Π Interactions ◽  
Compound C ◽  
Ring Motif

The molecule of the title compound, C20H20N2O6, lies across a crystallographic inversion centre, the asymmetric unit comprising one half-molecule. An intramolecular O—H...N hydrogen bond generates a six-membered ring, producing anS(6)ring motif. Pairs of intermolecular C—H...O hydrogen bonds link neighbouring molecules into a layer withR22(38) ring motif. The crystal structure is further stabilized by the intermolecular C—H...π interactions.

scholarly journals Crystal structure of 2-methyl-N-{[2-(pyridin-2-yl)ethyl]carbamothioyl}benzamide

2015 ◽  
Vol 71 (9) ◽  
pp. o636-o636
Author(s):  
Nadiah Ameram ◽  
Farook Adam
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Thiourea Derivative ◽  
Π Interactions ◽  
Compound C ◽  
Benzene Rings ◽  
Ring Motif

In the title compound, C16H17N3OS, a benzoyl thiourea derivative, the planes of the pyridine and benzene rings are inclined to one another by 66.54 (9)°. There is an intramolecular N—H...O hydrogen bond present forming anS(6) ring motif. In the crystal, molecules are linkedviapairs of N—H...N hydrogen bonds, forming inversion dimers, which are reinforced by pairs of C—H...S hydrogen bonds. The dimers are linkedviaC—H...π interactions, forming ribbons along [010].

scholarly journals 2,2′-Bipyridin-1-ium hemioxalate oxalic acid monohydrate

IUCrData ◽  
2018 ◽  
Vol 3 (8) ◽  
Author(s):  
Błażej Dziuk ◽  
Anna Jezuita
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Oxalic Acid ◽  
Water Molecule ◽  
Title Compound ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Compound C ◽  
Oxalic Acids

The asymmetric unit of the title compound, C10H9N2 +·0.5C2O4 2−·C2H2O4·H2O, consists of a 2,2′-bipyridinium cation, half an oxalate dianion, one oxalic acid and one water molecule. One N atom in 2,2′-bipyridine is unprotonated, while the second is protonated and forms an N—H...O hydrogen bond. In the crystal, the anions are connected with surrounding acid molecules and water molecules by strong near-linear O—H...O hydrogen bonds. The water molecules are located between the anions and oxalic acids; their O atoms participate as donors and acceptors, respectively, in O—H...O hydrogen bonds, which form sheets arranged parallel to the ac plane.

scholarly journals 4-Cyano-3,5-bis(phenyl)pyrazole

IUCrData ◽  
2017 ◽  
Vol 2 (9) ◽  
Author(s):  
Ningfeng Zhao ◽  
Aanuoluwapo Adeyemi ◽  
Arielle Pompilius
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules ◽  
Ring Motif

There are two independent molecules in the asymmetric unit of the title compound, C16H11N3. The molecules are linked by pairs of N—H...N hydrogen bonds, forming inversion dimers with anR22(6) ring motif.

scholarly journals Crystal structure of 1-benzyl-4-formyl-1H-pyrrole-3-carboxamide

2016 ◽  
Vol 72 (2) ◽  
pp. 133-135
Author(s):  
Qi-Di Zhong ◽  
Sheng-Quan Hu ◽  
Hong Yan
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Π Interactions ◽  
Bond Forming ◽  
Compound C ◽  
The Mean ◽  
Ring Motif

In the title compound, C13H12N2O2(I), the mean planes of the pyrrole and benzyl rings are approximately perpendicular, forming a dihedral angle of 87.07 (4) °. There is an intramolecular N—H...O hydrogen bond forming an S(7) ring motif. In the crystal, molecules are linkedviaa pair of N—H...O hydrogen bonds forming inversion dimers. C—H...O hydrogen bonds link the dimers into chains along direction [10-1]. The chains are further linked by weak C—H...π interactions forming layers parallel to theacplane.

scholarly journals (Z)-2-(4-{[(E)-2-Hydroxybenzylidene]amino}phenyl)-3-[4-(1,4,7,10-tetraoxa-13-azacyclopentadecan-13-yl)phenyl]acrylonitrile

IUCrData ◽  
2016 ◽  
Vol 1 (10) ◽  
Author(s):  
Xin Zhang ◽  
Zhi-Chao Wu
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Fluorescence Probe ◽  
Azacrown Ether ◽  
Compound C ◽  
Ring Motif

The title compound, C32H35N3O5, is an important fluorescence probe. It is composed of a 1,4,7,10-tetraoxa-13λ2-azacyclopentadecane unit linked to a twisted (Z)-2-(4-{[(E)-2-hydroxybenzylidene]amino}phenyl)-3-phenylacrylonitrile chain. In the molecule, an O—H...N hydrogen bond forms an S(6) ring motif. There is also in intramolecular C—H...N hydrogen bond in the azacrown ether moiety, which also forms an S(6) ring motif. In the crystal, molecules are linked via pairs of C—H...O hydrogen bonds, forming inversion dimers.

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