9-(p-Tolylsulfonyl)-9H-carbazole

2006 ◽  
Vol 62 (4) ◽  
pp. o1539-o1540
Author(s):  
Ning Li ◽  
Peng-Mian Huang ◽  
Xiao-Li Xiong ◽  
Qiang Cai
Keyword(s):  
Crystal Structure ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules

Two independent molecules constitute the asymmetric unit of the title compound, C19H15NO2S, which was synthesized by N-alkylation of 4-methylbenzenesulfonyl chloride with carbazole. The carbazole ring system is essentially planar and forms a dihedral angle with the benzene ring of 85.1 (7)° [83.9 (7)° for the second molecule]. In the crystal structure, weak C—H...O interactions are observed.

scholarly journals Crystal structure of (E)-2-(4-chlorobenzylidene)-3,4-dihydronaphthalen-1(2H)-one: a second monoclinic polymorph

2015 ◽  
Vol 71 (10) ◽  
pp. o741-o742
Author(s):  
Muhammad Haroon ◽  
Tashfeen Akhtar ◽  
Muhammad Nawaz Tahir
Keyword(s):  
Crystal Structure ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Boat Conformation ◽  
Asymmetric Unit ◽  
Acta Cryst ◽  
Compound C ◽  
Independent Molecules ◽  
Atomic Coordinates

The title compound, C17H13ClO, is the second monoclinic polymorph to crystallize in the space groupP21/c. The first polymorph crystallized with two independent molecules in the asymmetric unit [Bolognesiet al.(1975).Acta Cryst.A31, S119;Z′ = 2; no atomic coordinates available], whereas the title compound hasZ′ = 1. In the title polymorph, the dihedral angle between the plane of the benzene ring of the tetralone moiety and that of the 4-chlorobenzyl ring is 52.21 (11)°. The cyclohex-2-en-1-one ring of the tetralone moiety has a screw-boat conformation. In the crystal, molecules are liked by pairs of C—H...π interactions forming inversion dimers. There are no other significant intermolecular interactions present.

scholarly journals 2-{[(2-Methoxynaphthalen-1-yl)methyl]amino}phenol

IUCrData ◽  
2016 ◽  
Vol 1 (7) ◽  
Author(s):  
Sara Mahdjoub ◽  
Raouf Boulcina ◽  
Abdelmadjid Debache ◽  
Nadir Ghichi ◽  
Hocine Merazig
Keyword(s):  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Asymmetric Unit ◽  
Naphthalene Ring ◽  
Π Interactions ◽  
Compound C ◽  
Amino Phenol ◽  
Independent Molecules

The asymmetric unit of the title compound, C18H17NO2, contains two independent molecules (AandB). The dihedral angle between the naphthalene ring system and the benzene ring is 74.67 (10)° in moleculeAand 78.81 (9)° in moleculeB. In the crystal, molecules are linked by a series of C—H...π interactions, forming sheets parallel to theabplane.

scholarly journals N-(3-Chloro-1-methyl-1H-indazol-5-yl)-4-methylbenzenesulfonamide

2014 ◽  
Vol 70 (2) ◽  
pp. o181-o181 ◽  
Author(s):  
Hakima Chicha ◽  
El Mostapha Rakib ◽  
Ouafa Amiri ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
The Other ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules

The asymmetric unit of the title compound, C15H14ClN3O2S, contains two independent molecules showing different conformations: in one molecule, the indazole ring system makes a dihedral angle of 51.5 (1)° with the benzene ring whereas in the other, the indazole unit is almost perpendicular to the benzene ring [dihedral angle 77.7 (1)°]. In the crystal, the molecules are linked by N—H...N and N—H...O hydrogen bonds, forming a set of four molecules linked in pairs about an inversion centre.

scholarly journals Crystal structure of 7,15-bis(4-tert-butylphenyl)-1,9-dimethylheptazethrene

2017 ◽  
Vol 73 (2) ◽  
pp. 99-102 ◽  
Author(s):  
Sho Kamata ◽  
Sota Sato ◽  
Jishan Wu ◽  
Hiroyuki Isobe
Keyword(s):  
Crystal Structure ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Asymmetric Unit ◽  
The Core ◽  
Compound C ◽  
Intermolecular Contacts

The title compound, C50H44,1, was synthesized as a derivative of heptazethrene bearing two methyl and twotert-butylphenyl substituents, respectively, at the 1,9- and 7,15-positions. The asymmetric unit consists of one half of the molecule, which lies about an inversion centre. Albeit remotely located, the substituents contort the heptazethrene plane. Thetert-butylphenyl substituents stand approximately perpendicular to the core plane, with a dihedral angle of 79.09 (5)° between the phenalene ring system and the substituted benzene ring, and prevent direct intermolecular contacts of the heptazethrene cores.

3-n-Butyl-2-methoxy-1-benzothieno[3,2-d]pyrimidin-4(3H)-one

2006 ◽  
Vol 62 (4) ◽  
pp. o1319-o1320 ◽  
Author(s):  
Min-Hui Cao ◽  
Sheng-Zhen Xu ◽  
Yang-Gen Hu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Benzene Ring ◽  
Title Compound ◽  
Thiophene Ring ◽  
Stacking Interactions ◽  
Asymmetric Unit ◽  
Compound C ◽  
Π Stacking ◽  
Independent Molecules

The title compound, C15H16N2O2S, contains a five-membered thiophene ring fused to a benzene ring and a substituted pyrimidinone ring. All three rings in each of the independent molecules of the asymmetric unit lie in approximately the same plane. The crystal structure is stabilized by intermolecular C—H...O hydrogen bonding and π–π stacking interactions.

scholarly journals 6-(Hex-5-enyloxy)naphthalene-2-carboxylic acid

2014 ◽  
Vol 70 (6) ◽  
pp. o696-o697
Author(s):  
Md. Lutfor Rahman ◽  
H. T. Srinivasa ◽  
Mashitah Mohd. Yusoff ◽  
Huey Chong Kwong ◽  
Ching Kheng Quah
Keyword(s):  
Crystal Structure ◽  
Carboxylic Acid ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Ring System ◽  
Dihedral Angles ◽  
Carbonyl Groups ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules

The asymmetric unit of the title compound, C17H18O3, comprises three independent molecules with similar geometries. In each molecule, the carbonyl group is twisted away from the napthalene ring system, making dihedral angles of 1.0 (2), 1.05 (19)° and 1.5 (2)°. The butene group in all three molecules are disordered over two sets of sites, with a refined occupancy ratio of 0.664 (6):0.336 (6). In the crystal, molecules are oriented with respect to their carbonyl groups, forming head-to-head dimersviaO—H...O hydrogen bonds. Adjacent dimers are further interconnected by C—H...O hydrogen bonds into chains along thea-axis direction. The crystal structure is further stabilized by weak C—H...π interactions.

scholarly journals 2-(1,3-Benzodioxol-5-yl)-1H-benzimidazole

2014 ◽  
Vol 70 (2) ◽  
pp. o157-o157
Author(s):  
Nadir Ghichi ◽  
Mohamed Amine Benaouida ◽  
Ali Benosmane ◽  
Ali Benboudiaf ◽  
Hocine Merazig
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Ring System ◽  
The Other ◽  
Dihedral Angles ◽  
Asymmetric Unit ◽  
Compound C ◽  
The Mean ◽  
Independent Molecules

The asymmetric unit of the title compound, C14H10N2O2, contains two independent molecules. In each molecule, the benzodioxole ring system displays an envelope conformation, with the methylene C atom located at the flap deviating by 0.081 (2) and 0.230 (2) Å from the mean plane formed by the other atoms. The dihedral angles between the benzoimidazole ring system (all atoms) and the benzodioxole benzene ring are 15.35 (6) and 10.99 (7)°. In the crystal, molecules are linked by N—H...N hydrogen bonds into chains running along the [101].

scholarly journals Crystal structure of 1-[(Z)-2-phenylhydrazin-1-ylidene]naphthalen-2(1H)-one

2015 ◽  
Vol 71 (5) ◽  
pp. o303-o303
Author(s):  
Ali Benosmane ◽  
Mohamed Amine Benaouida ◽  
Assia Mili ◽  
Abdelkader Bouchoul ◽  
Hocine Merazig
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Carbonyl Group ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Imino Group ◽  
Compound C ◽  
Supramolecular Chains

In the title compound, C16H12N2O, the dihedral angle between the planes of the benzene ring and naphthalenone ring system is 1.89 (8)°; an intramolecular N—H...O hydrogen bond occurs between the imino group and the carbonyl group. In the crystal, molecules are linked by weak C—H...π interactions into supramolecular chains propagating along the [01-1] direction.

scholarly journals 4-Chloro-N-methylbenzamide

2012 ◽  
Vol 68 (4) ◽  
pp. o937-o937
Author(s):  
Juan Yuan ◽  
Yan-Ju Liu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Amide Group ◽  
Dihedral Angles ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules

There are two molecules in the asymmetric unit of the title compound, C8H8ClNO, which are linked in the crystal structureviaN—H...O hydrogen bonds into chains along thebaxis. C—H...O contacts also occur. The benzene ring makes dihedral angles of 5.9 (1) and 16.7 (1)°with the attached amide group in the two independent molecules.

scholarly journals Crystal structure of (E)-2-{[(4-anilinophenyl)imino]methyl}phenol

2015 ◽  
Vol 71 (1) ◽  
pp. 28-30 ◽  
Author(s):  
Md. Serajul Haque Faizi ◽  
Turganbay S. Iskenderov ◽  
Natalia O. Sharkina
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Asymmetric Unit ◽  
Aromatic Rings ◽  
Compound C ◽  
Independent Molecules ◽  
Phenol Ring

The title compound, C19H16N2O, crystallized with two independent molecules (AandB) in the asymmetric unit. There is an intramolecular O—H...N hydrogen bond in each molecule with the phenol ring being inclined to the central benzene ring by 4.93 (14) and 7.12 (14)° in moleculesAandB, respectively. The conformation of the two molecules differs essentially in the orientation of the terminal aminophenyl ring with respect to the central benzene ring; this dihedral angle is 50.51 (4)° in moleculeAand 54.61 (14)° in moleculeB. The two outer aromatic rings are inclined to one another by 51.39 (14) and 49.88 (14)° in moleculesAandB, respectively. In the crystal, molecules are connected by N—H...O hydrogen bonds generating –A-B–A–B– zigzag chains extending along [010]. The chains are linkedviaC—H...π interactions involving neighbouringAmolecules, forming slabs lying parallel to (100).

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