scholarly journals Crystal structure of 2-[9-(2-hydroxyphenyl)-1,8-dioxo-1,2,3,4,5,6,7,8,9,10-decahydroacridin-10-yl]acetic acid

2015 ◽  
Vol 71 (12) ◽  
pp. o963-o964 ◽  
Author(s):  
Mehmet Akkurt ◽  
Jerry P. Jasinski ◽  
Shaaban K. Mohamed ◽  
Omyma A. Abd Allah ◽  
Asmaa H. A. Tamam ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Acetic Acid ◽  
Three Dimensional ◽  
Asymmetric Unit ◽  
Compound C ◽  
Dimensional Network ◽  
Dihydropyridine Ring ◽  
Twisted Boat ◽  
Phenol Ring

The title compound, C21H21NO5, crystallizes with two molecules in the asymmetric unit. In each molecule, the central 1,4-dihydropyridine ring adopts a shallow sofa conformations (with the C atom bearing the phenol ring as the flap), whereas the pendant cyclohexene rings both have twisted-boat conformations. Each molecule features an intramolecular O—H...O hydrogen bond, which closes anS(8) ring. In the crystal, the molecules are linked by O—H...O, C—H...O and C—H...π interactions, forming a three-dimensional network.

scholarly journals Crystal structure of (E)-4-{1-[2-(carbamothioyl)hydrazin-1-ylidene]ethyl}phenyl 4-methylbenzoate

2015 ◽  
Vol 71 (1) ◽  
pp. o43-o44 ◽  
Author(s):  
Karthik Ananth Mani ◽  
Vijayan Viswanathan ◽  
S. Narasimhan ◽  
Devadasan Velmurugan
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dihedral Angles ◽  
Asymmetric Unit ◽  
Compound C ◽  
Dimensional Network ◽  
Independent Molecules

The asymmetric unit of the title compound, C17H17N3O2S, consists of two independent molecules,AandB, with different conformations: in moleculeA, the dihedral angles between the central benzene ring and the pendant tolyl and carbamothioylhydrazono groups are 71.12 (9) and 5.95 (8)°, respectively. The corresponding angles in moleculeBare 50.56 (12) and 26.43 (11)°, respectively. Both molecules feature an intramolecular N—H...N hydrogen bond, which closes anS(5) ring. In the crystal, molecules are linked by N—H...O, N—H...S and C—H...O hydrogen bonds, generating a three-dimensional network.

scholarly journals 2-(4-Bromophenyl)-N-(5-methylpyridin-2-yl)acetamide

2012 ◽  
Vol 68 (8) ◽  
pp. o2526-o2526 ◽  
Author(s):  
Hoong-Kun Fun ◽  
Chin Wei Ooi ◽  
Prakash S. Nayak ◽  
B. Narayana ◽  
B. K. Sarojini
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Dihedral Angles ◽  
Asymmetric Unit ◽  
Compound C ◽  
Dimensional Network ◽  
Centroid Distance ◽  
Benzene Rings

The asymmetric unit of the title compound, C14H13BrN2O, consists of two molecules; the dihedral angles between the pyridine and benzene rings are 87.99 (9) and 84.28 (9)°. An intramolecular C—H...O hydrogen bond generates anS(6) ring in each molecule. In the crystal, molecules are linkedviaN—H...N and C—H...O hydrogen bonds into a three-dimensional network. The crystal structure also features weak π–π stacking interactrions between the benzene rings [centroid-to-centroid distance = 3.6829 (12) Å].

scholarly journals Crystal structure of (4Z)-1-(3,4-dichlorophenyl)-4-[hydroxy(4-methylphenyl)methylidene]-3-methyl-4,5-dihydro-1H-pyrazol-5-one

2014 ◽  
Vol 70 (10) ◽  
pp. o1136-o1137 ◽  
Author(s):  
Naresh Sharma ◽  
Sanjay Parihar ◽  
R. N. Jadeja ◽  
Rajni Kant ◽  
Vivek K. Gupta
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Title Compound ◽  
Three Dimensional ◽  
Pyrazole Ring ◽  
Dihedral Angles ◽  
Asymmetric Unit ◽  
Π Interactions ◽  
Compound C ◽  
Dimensional Network

The title compound, C18H14Cl2N2O2, crystallizes with two molecules,AandB, in the asymmetric unit. In moleculeA, the dihedral angles between the central pyrazole ring and pendant dichlorobenzene andp-tolyl rings are 2.18 (16) and 46.78 (16)°, respectively. In moleculeB, the equivalent angles are 27.45 (16) and 40.45 (18)°, respectively. Each molecule features an intramolecular O—H...O hydrogen bond, which closes anS(6) ring and moleculeAalso features a C—H...O interaction. In the crystal, weak C—H...π interactions and aromatic π–π stacking [shortest centroid–centroid separation = 3.707 (2) Å] generate a three-dimensional network.

scholarly journals Crystal structure of 2-(2-aminophenyl)-1,3-benzoxazole

2015 ◽  
Vol 71 (2) ◽  
pp. 188-191
Author(s):  
Imelda Pérez-Pérez ◽  
Diego Martínez-Otero ◽  
Susana Rojas-Lima ◽  
Heraclio López-Ruiz
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Solvent Mixture ◽  
Dihedral Angles ◽  
Asymmetric Unit ◽  
Compound C ◽  
Dimensional Network

Crystals of the title compound, C13H10N2O, were grown from a dichloromethane/ketone/methanol solvent mixture. It crystallizes with two molecules,AandB, in the asymmetric unit with very similar almost planar conformations [dihedral angles between the ring planes = 0.74 (8) and 0.67 (6)° for moleculesAandB, respectively; r.m.s. overlay fit = 0.019 Å]. Each molecule features an intramolecular N—H...N hydrogen bond, which closes anS(6) ring and therefore establishes asynrelationship for the N atoms. In the crystal, molecules are linked by N—H...N hydrogen bonds, generating [100] chains containing alternatingAandBmolecules. Weak aromatic π–π stacking [minimum centroid–centroid separation = 3.6212 (9) Å] links the chains into a three-dimensional network.

scholarly journals Crystal structure of 4-{[(1H-1,2,4-triazol-1-yl)methyl]sulfanyl}phenol

2014 ◽  
Vol 70 (10) ◽  
pp. o1106-o1106
Author(s):  
Yong-Le Zhang ◽  
Chuang Zhang ◽  
Wei Guo ◽  
Jing Wang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Three Dimensional ◽  
Triazole Ring ◽  
Hydrogen Bond Interactions ◽  
Compound C ◽  
Dimensional Network

In the title compound, C9H9N3OS, the plane of the benzene ring forms a dihedral angle of 33.40 (5)° with that of the triazole group. In the crystal, molecules are linked by O—H...N hydrogen bonds involving the phenol –OH group and one of the unsubstituted N atoms of the triazole ring, resulting in chains along [010]. These chains are further extended into a layer parallel to (001) by weak C—H...N hydrogen-bond interactions. Aromatic π–π stacking [centroid–centroid separation = 3.556 (1) Å] between the triazole rings links the layers into a three-dimensional network.

scholarly journals Crystal structure of 1-(4-methoxyphenyl)-4-(4-nitrophenyl)-3-phenoxyazetidin-2-one

2015 ◽  
Vol 71 (1) ◽  
pp. o12-o13
Author(s):  
Sevim Türktekin Çelikesir ◽  
Mehmet Akkurt ◽  
Aliasghar Jarrahpour ◽  
Habib Allah Shafie ◽  
Ömer Çelik
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Phenyl Ring ◽  
Three Dimensional ◽  
Dihedral Angles ◽  
Compound C ◽  
Dimensional Network ◽  
Lactam Ring

In the title compound, C22H18N2O5, the central β-lactam ring (r.m.s. deviation = 0.002 Å) makes dihedral angles of 64.21 (14), 82.35 (12) and 20.66 (13)° with the phenyl ring and the nitro- and methoxybenzene rings, respectively. The molecular structure is stabilized by an intramolecular C—H...O hydrogen bond. In the crystal, molecules are linkedviaC—H...O hydrogen bonds, forming slabs lying parallel to (111). The slabs are linkedviaC—H...π interactions, forming a three-dimensional network.

scholarly journals Crystal structure of 4-chloro-2-{(E)-[(3,4-dimethylphenyl)imino]methyl}phenol

2015 ◽  
Vol 71 (6) ◽  
pp. o416-o416 ◽  
Author(s):  
Muhammad Salim ◽  
Muhammad Nawaz Tahir ◽  
Munawar Ali Munawar ◽  
Muhammad Shahid ◽  
Hazoor Ahmad Shad
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Aromatic Rings ◽  
Acta Cryst ◽  
Π Interactions ◽  
Compound C ◽  
Dimensional Network

In the title compound, C15H14ClNO, which is isostructural with its bromo analogue [Tahiret al.(2012).Acta Cryst., E68, o2730], the dihedral angle between the planes of the aromatic rings is 2.71 (7)° and an intramolecular O—H...N hydrogen bond closes anS(6) ring. In the crystal, extremely weak C—H...π interactions link the molecules into a three-dimensional network.

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).

scholarly journals 4-Fluoro-2-[(3-methylphenyl)iminomethyl]phenol

2012 ◽  
Vol 68 (4) ◽  
pp. o1071-o1071
Author(s):  
Alice Brink ◽  
Hendrik G. Visser ◽  
Andreas Roodt
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Title Compound ◽  
Three Dimensional ◽  
Compound C ◽  
Dimensional Network ◽  
Benzene Rings

The title compound, C14H12FNO, crystallizes as thetransphenol–imine tautomer. The two benzene rings are essentially coplanar, being inclined to one another by 9.28 (7)°. This is at least in part due to the intramolecular O—H...N hydrogen bond between the hydroxy O atom and the imine N atom. The crystal structure is stabilized by an array of weak C—H...O and C—H...F interactions, which link the molecules into a stable three-dimensional network.

scholarly journals Crystal structure of 6-chloro-5-isopropylpyrimidine-2,4(1H,3H)-dione

2014 ◽  
Vol 70 (11) ◽  
pp. o1144-o1145
Author(s):  
Nadia G. Haress ◽  
Hazem A. Ghabbour ◽  
Ali A. El-Emam ◽  
C. S. Chidan Kumar ◽  
Hoong-Kun Fun
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Pyrimidine Ring ◽  
Isopropyl Group ◽  
Torsion Angles ◽  
Compound C ◽  
Dimensional Network

In the molecule of the title compound, C7H9ClN2O2, the conformation is determined by intramolecular C—H...O and C—H...Cl hydrogen bonds, which generateS(6) andS(5) ring motifs. The isopropyl group is almost perpendicular to the pyrimidine ring with torsion angles of −70.8 (3) and 56.0 (3)°. In the crystal, two inversion-related molecules are linkedviaa pair of N—H...O hydrogen bonds intoR22(8) dimers; these dimers are connected into chains extending along thebcplaneviaan additional N—H...O hydrogen bond and weaker C—H...O hydrogen bonds. The crystal structure is further stabilized by a weak π–π interaction [3.6465 (10) Å] between adjacent pyrimidine-dione rings arranged in a head-to-tail fashion, producing a three-dimensional network.

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