78 research outputs found
1-Benzoyl-4-(4-methylphenyl)phthalazine
In the title molecule, C22H16N2O, the tolyl and benzoyl rings make dihedral angles 50.2 (5) and 56.4 (5)°, respectively, with the phthalazine ring system while the dihedral angle between the tolyl and benzoyl rings is 0.70 (4)°. The crystal structure is stabilized by intermolecular C—H⋯O and C—H⋯N hydrogen bonds, as well as weak C—H⋯π interactions
(3-Ethyl-6,7-dimethoxynaphthalen-1-yl)(phenyl)methanone
The asymetric unit of the title molecule, C21H20O3, contains two crystallographically independent molecules, A and B, which differ in the orientation of the ethyl group substituted on the naphthalene system; the dihedral angles between the ethyl group and the naphthalene system are 7.4 (3) and 68.1 (3)°, respectively, for molecules A and B. The dihedral angles between the benzoyl and naphthalene groups are 64.7 (7) and 69.4 (8)°, respectively, for molecules A and B. The crystal structure features four aromatic π–π stacking interactions [centroid–centroid distances = 4.181 (1), 3.891 (1), 4.423 (1) and 4.249 (1) Å]
4-Amino-3-(4-chlorophenyl)-1H-1,2,4-triazole-5(4H)-thione
In the title compound, C8H7ClN4S, the benzene ring is statistically disordered over two conformations rotated about the Cl—C⋯C—C axis, which subtend dihedral angles of 24.7 (3) and 9.9 (2) ° with respect to the triazole ring. An intramolecular C—H⋯N close contact occurs. In the crystal, N—H⋯N and N—H⋯S hydrogen bonds link the molecules into (001) sheets: R
2
2(8) and R
2
2(10) graph-set motifs result. Weak C—H⋯N hydrogen bonds and aromatic π–π stacking interactions [shortest centroid–centroid separation = 3.681 (7) Å] complete the structure
Ethyl 3-methyl-2,6-diphenylpiperidine-1-carboxylate
In the title compound, C21H25NO2, the piperidine ring adopts a twisted boat conformation characterized by puckering parameters θ = 89.5 (1) and ϕ = 257.5 (2)°. The phenyl groups are located in equatorial and axial positions on the central piperidine ring, while the methyl group is in an equatorial position. The dihedral angle between the phenyl rings is 49.8 (1)°. An intramolecular C—H⋯O interaction occurs. The crystal structure features weak intermolecular C—H⋯O interactions and a stabilizing intermolecular C—H⋯π contact involving the axial phenyl ring
1′-Methyl-4′-phenyl-2′′-sulfanylidenedispiro[indoline-3,2′-pyrrolidine-3′,5′′-1,3-thiazolidine]-2,4′′-dione
The title compound, C20H17N3O2S2, crystallizes with two molecules in the asymmetric unit. The pyrrolodine rings have envelope conformations in both molecules, the N atoms deviating by 0.574 (3) and 0.612 (2) Å from the mean planes through the other ring atoms. The 1′-methyl and 4′-phenyl groups on the pyrrolidine rings are substituted in equatorial positions. In the crystal, molecules are linked into a three-dimensional network by N—H⋯O, N—H⋯N and C—H⋯O and N—H⋯π hydrogen bonds
(Z)-2-[(4-Methylphenyl)sulfonyl]-1,2-diphenyletheneselenol
In the title compound, C21H18O2SSe, the dihedral angle between the cis phenyl rings is 64.3 (1)° and those between the toluene and the phenyl rings are 21.1 (2) and 72.0 (1)°, respectively. An intramolecular Se—H⋯O hydrogen bond occurs. In the crystal, molecules are connected by C—H⋯O hydrogen bonds and weak C—H⋯π interactions help to consolidate the crystal packing
4-({(E)-[2-(But-3-en-1-yl)-1-(prop-2-en-1-yl)-4-sulfanyl-1H-imidazol-5-yl]methylidene}amino)-3-phenyl-1H-1,2,4-triazole-5(4H)-thione
In the title compound, C19H20N6S2, the dihedral angle between the phenyl and triazole rings is 24.1 (2)° while the dihedral angles between the imidazole ring and the triazole and phenyl rings are 39.9 (2) and 55.3 (2)°, respectively. The crystal structure is stabilized by intermolecular N—H⋯N hydrogen bonds which form chains along [10]
2,4-Diamino-5-(4-chlorophenyl)-6-ethylpyrimidin-1-ium 2-propanamidobenzoate
In the title salt, C12H14ClN4
+·C10H10NO3
−, zwitterionic N—H⋯O interactions form an R
2
2(8) ring. The crystal structure is stabilized by N—H⋯O and N—H⋯N hydrogen bonds involving two different eight-membered rings. An N—H⋯O interaction occurs between the pyrimidine ring (donor) and carboxylate group (acceptor) while the other ring is formed by N—H⋯N interactions, which form a dimer between two symmetry-related salts. An intramolecular N—H⋯O hydrogen bond forms a six-membered ring in the benzoate. Intermolecular C—H⋯O interactions are also observed
2,4-Diamino-5-(4-chlorophenyl)-6-ethylpyrimidin-1-ium 2-acetamidobenzoate
The title compound, C12H14ClN4
+·C9H8NO3
−, is a salt with a 1:1 ratio of cation and anion components interacting with each other forming an R
2
2(8) ring motif. The crystal structure is stabilized by hydrogen bonds (N—H⋯O) involving two different eight-membered rings. One of them is formed between the pyrimidine ring (donor) and the carboxylate group (acceptor) from the benzoate, whereas the other ring is formed by N—H⋯O interactions, which help to form a dimer between two symmetry-related salts in the unit cell. In addition, an intramolecular C—H⋯N and intermolecular C—H⋯Cl interactions help to control the molecules in the unit-cell packing
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