3,3′-(4-Amino-4H-1,2,4-triazole-3,5-diyl)dibenzoic acid

2006 ◽  
Vol 62 (7) ◽  
pp. o2791-o2792 ◽  
Author(s):  
Peng Wang ◽  
Jian Ping Ma ◽  
Ru-Qi Huang ◽  
Yu-Bin Dong
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Intermolecular Hydrogen Bonding ◽  
Compound C ◽  
Hydrogen Bonding Network

The title compound, C16H12N4O4, has a non-planar molecular structure. An intermolecular hydrogen-bonding network helps to stabilize the crystal structure.

(2R,3S,4S,5R)-4-Hydroxy-3-iodo-5-methyltetrahydro-2-furylmethyl benzoate

2000 ◽  
Vol 57 (1) ◽  
pp. o58-o60
Author(s):  
Sean P. Bew ◽  
Mark E. Light ◽  
Michael B. Hursthouse ◽  
David W. Knight ◽  
Robert J. Middleton
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Structure Determination ◽  
Title Compound ◽  
Crystal Structure Determination ◽  
Intermolecular Hydrogen Bonding ◽  
Compound C ◽  
Relative Stereochemistry

The crystal structure determination of the title compound, C13H15IO4, has allowed the relative stereochemistry between the tetrasubstituted C atoms on the tetrahydrofuran moiety to be confirmed. The title compound is a precursor of the ionophoric antibiotic Aplasmomycin. The compound is involved in both intra- and intermolecular hydrogen bonding, the latter link the molecules into chains running along thebaxis.

(13bR,13cS)-rel-11b,11c-Diphenyl-6,11-dihydro-1H,3H,4H,13H-2-oxa-3a,4a,5a,11a,12a,13a-hexaazabenz[f]indeno[2,1,8-ija]naphth[2,3-f]azulene-4,6,11,13-tetrone chloroform solvate

2006 ◽  
Vol 62 (7) ◽  
pp. o2945-o2946
Author(s):  
Sheng-li Hu ◽  
Hui-Zhen Guo ◽  
Neng-Fang She
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Intermolecular Hydrogen Bonding ◽  
Molecular Tweezers ◽  
Compound C ◽  
Important Intermediate

The crystal structure of the title compound, C28H22N6O5·CHCl3, an important intermediate for molecular tweezers, shows intermolecular hydrogen bonding.

scholarly journals 1,1′,2,2′-Tetramethyl-3,3′-(4-methoxybenzylidene)di-1H-indole

2009 ◽  
Vol 65 (6) ◽  
pp. o1332-o1332
Author(s):  
Cai-Li Zhang ◽  
Ping-Ping Ye ◽  
Zhi-Qiang Du
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Dihedral Angles ◽  
Indole Ring ◽  
Ring Systems ◽  
Compound C

The title compound, C28H28N2O, was prepared by condensation of 1,2-bimethylindole and 4-methoxybenzaldehyde. In the molecular structure, the plane of the non-fused benzene ring is twisted with respect to the planes of the two indole ring systems, exhibiting dihedral angles of 72.04 (7) and 72.24 (7)°, while the planes of the two indole ring systems are oriented at a dihedral angle of 87.05 (5)°. Neither hydrogen bonding nor π–π stacking is observed in the crystal structure.

scholarly journals 5-Amino-1-(2′,3′-O-isopropylidene-D-ribityl)-1H-imidazole-4-carboxamide: a crystal structure withZ′ = 4

2017 ◽  
Vol 73 (2) ◽  
pp. 183-187 ◽  
Author(s):  
Vincenzo Piccialli ◽  
Nicola Borbone ◽  
Giorgia Oliviero ◽  
Gennaro Piccialli ◽  
Stefano D'Errico ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Monoclinic Space Group ◽  
Intermolecular Hydrogen Bonding ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules ◽  
Intramolecular Hydrogen ◽  
Similar Conformation

The title compound, C12H20N4O5, crystallizes in the monoclinic space groupP21, with four crystallographically independent molecules in the asymmetric unit. The four molecules have a very similar conformation that is basically determined by the formation of two intramolecular hydrogen bonds between the amino NH2donors and the carbonyl and ring O-atom acceptors, forming, respectively,R(6) andR(7) ring motifs.. In the crystal, intermolecular hydrogen bonding leads to the formation ofR22(10) ring patterns, involving one amide CONH2donor and an imidazole N-atom acceptor. The cluster of the four independent molecules has approximate non-crystallographicC2point symmetry. The structural analysis also shows that during the synthesis of the title compound, the reductive cleavage of the D-ribose ring of the inosine precursor proceeds stereoselectively, with retention of configuration.

scholarly journals Crystal structure of 3,6-bis(pyridin-2-yl)-1,4-dihydro-1,2,4,5-tetrazine

2019 ◽  
Vol 75 (1) ◽  
pp. 86-88
Author(s):  
Kinga Wzgarda-Raj ◽  
Agnieszka J. Rybarczyk-Pirek ◽  
Sławomir Wojtulewski ◽  
Marcin Palusiak
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Intermolecular Hydrogen Bonding ◽  
Compound C

The structure of the title compound, C12H10N6, at 100 K has monoclinic (P21/n) symmetry. Crystals were obtained as a yellow solid by reduction of 3,6-bis(pyridin-2-yl)-1,2,4,5-tetrazine. The structure displays intermolecular hydrogen bonding of the N—H...N type, ordering molecules into infinite ribbons extending along the [100] direction.

N,N′-Bis[(4-chloroanilino)thiocarbonyl]isophthalamide dimethylformamide solvate

2006 ◽  
Vol 62 (5) ◽  
pp. o1791-o1792
Author(s):  
You-Ming Zhang ◽  
Cheng Cao ◽  
Qi Lin ◽  
Tai-Bao Wei
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Dihedral Angles ◽  
Intermolecular Hydrogen Bonding ◽  
Compound C ◽  
Π Stacking ◽  
Benzene Rings

The principal molecule of the title compound, C22H16Cl2N4O2S2·C3H7NO, is not planar; the three benzene rings are tilted with respect to each other, with dihedral angles of 5.51 (11), 60.06 (12) and 64.33 (11)°. Intermolecular hydrogen bonding and π–π stacking help to stabilize the crystal structure.

2-Diethylamino-6-ethyl-6-methyl-3-phenylthieno[2,3-d]pyrimidin-4(3H)-one

2006 ◽  
Vol 62 (7) ◽  
pp. o2862-o2863
Author(s):  
Zheng-Dong Fang ◽  
Ming-Wu Ding
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Stacking Interactions ◽  
Intermolecular Hydrogen Bonding ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Π Stacking

In the title compound, C19H23N3OS, the two fused rings of the thieno[2,3-d]pyrimidin-4(3H)-one system are almost coplanar. The packing of the molecules in the crystal structure is determined by van der Waals forces. No intermolecular hydrogen-bonding interactions or π–π stacking interactions are present in the crystal structure.

2,3,4,6-Tetra-O-acetyl-N-(2-hydroxybenzylidene)-β-D-galactopyranosylamine

2006 ◽  
Vol 62 (5) ◽  
pp. o2069-o2071
Author(s):  
Mehmet Akkurt ◽  
Sema Öztürk Yıldırım ◽  
Ali Asghar Jarrahpour ◽  
Parvaneh Alvand ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Chair Conformation ◽  
Intermolecular Hydrogen Bonding ◽  
Compound C ◽  
Hydrogen Bonding Interactions

In the title compound, C21H25NO10, the six-membered pyranosyl ring adopts a chair conformation. The crystal structure contains intra- and intermolecular hydrogen-bonding interactions.

scholarly journals Crystal structure and synthesis of 3-(1H-pyrrol-2-yl)-1-(thiophen-2-yl)propanone

2018 ◽  
Vol 74 (10) ◽  
pp. 1463-1466 ◽  
Author(s):  
Dáire Gibbons ◽  
Ganapathi Emandi ◽  
Mathias O. Senge
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Previous Literature ◽  
Maximum Deviation ◽  
Intermolecular Hydrogen Bonding ◽  
Compound C ◽  
Ketone Carbonyl ◽  
The Mean

The title compound, C11H9NOS, was obtained in an improved yield compared to previous literature methods. The molecule is essentially planar with a maximum deviation of 0.085 Å from the mean plane through all non-H atoms. There is directive intermolecular hydrogen bonding in the form of N—H...O hydrogen bonds with a distance of 2.889 (3) Å between the pyrrole amine and the ketone carbonyl O atom. The resulting hydrogen-bonding network defines a ribbon parallel to the a axis. These ribbons form offset stacks along the b axis.

scholarly journals Crystal structure of 4-(pyrazin-2-yl)morpholine

2018 ◽  
Vol 74 (2) ◽  
pp. 137-140 ◽  
Author(s):  
Siva Sankar Murthy Bandaru ◽  
Anant Ramakant Kapdi ◽  
Carola Schulzke
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Chair Conformation ◽  
Unit Cell ◽  
Monoclinic Space Group ◽  
Space Group ◽  
Compound C ◽  
Hydrogen Bonding Interactions

The molecular structure of the title compound, C8H11N3O, is nearly planar despite the chair conformation of the morpholine moiety. In the crystal, the molecules form sheets parallel to the b axis, which are supported by non-classical hydrogen-bonding interactions between C—H functionalities and the O atom of morpholine and the 4-N atom of pyrazine, respectively. The title compound crystallizes in the monoclinic space group P21/c with four molecules in the unit cell.

Sign in / Sign up

Export Citation Format

Share Document