Results 71 to 80 of about 741,265 (208)

Ethyl 2-[(2E)-4-decyl-3-oxo-1,2,3,4-tetrahydroquinoxalin-2-ylidene]acetate

IUCrData, 2018
In the title compound, C22H32N2O3, the tetrahydroquinoxaline unit is planar. The ester substituent is nearly coplanar with this ring system as a result of an intramolecular N—H...O hydrogen bond.
Nadeem Abad, Youness El Bakri, Youssef Ramli, El Mokhtar Essassi, Joel T. Mague   +4 more
doaj   +1 more source

Crystal structure of ethyl 5[3(dimethylamino)acryloyl]-2-{[(dimethylamino)-methylidene]amino}-4-methylthiophene- 3-carboxylate [PDF]

, 2016
In the title compound, C16H23N3O3S, the dihedral angles between the thio­phene ring and the almost planar di­methyl­amino-methyl­ene­amino (r.m.s. deviation = 0.005 Å) and di­methyl­amino-acryloyl (r.m.s.
Krishnamurthy, M.S., Nagarajaiah, H., Noor Shahina Begum, ., Prasad, N.L.   +3 more
core   +1 more source

Crystal structure of methyl (S)-2-{(R)-4-[(tert-butoxycarbonyl)amino]-3-oxo-1,2-thiazolidin-2-yl}-3-methylbutanoate: a chemical model for oxidized protein tyrosine phosphatase 1B (PTP1B)

Acta Crystallographica Section E: Crystallographic Communications, 2015
The asymmetric unit of the title compound, C14H24N2O5S, contains two independent molecules (A and B). In each molecule, the isothiazolidin-3-one ring adopts an envelope conformation with the methylene C atom as the flap.
Kasi Viswanatharaju Ruddraraju, Roman Hillebrand, Charles L. Barnes, Kent S. Gates   +3 more
doaj   +1 more source

N-(3-chlorophenyl)-2-(1E)-(4-methylphenyl)-methyleneamino-4,5,6, 7-tetrahydro-1-benzo-thiophene-3-carboxamide [PDF]

, 2005
The crystal structure of the title compound, C23H 21ClN2OS, is stabilized by intramolecular N-H⋯N, C-H⋯S and C-H⋯O hydrogen bonds and a weak intermolecular C-H⋯O interaction.
Anilkumar, G.N., Kokila, M.K., Mohan, S., Puttaraja, ., Shetty, K.S.M.   +4 more
core   +1 more source

1,2-Ethylenediaminium bis(2-benzamidobenzoate)

Acta Crystallographica Section E, 2013
In the title salt, C2H10N22+·2C14H10NO3−, the ethylenediaminium dication lies on an inversion centre. In the anion, the benzene rings make a dihedral angle of 33.87 (9)° and intramolecular N—H...O and C—H...O hydrogen ...
Mavlonbek Ziyaev, Jamshid Ashurov, Samat Talipov, Bakhtiyar Ibragimov   +3 more
doaj   +1 more source

Benzyltrimethylammonium dihydrogen orthophosphate monohydrate [PDF]

, 2005
The title compound, C 10 H 16 N + H 2 PO 4 H 2 O, crystallizes in the centrosymmetric space group P 2 1 / c with two independent molecules in the asymmetric unit.
Belsley, Michael Scott, Criado Vega, Alberto, Diánez Millán, María Jesús, Estrada de Oya, María Dolores, Matos Gomes, Etelvina M. de, Pérez Garrido, Simeón   +5 more
core   +1 more source

Intramolecular C-H...O and intermolecular N-H...O and C-H...O interactions in N-ferrocenoylglycine benzyl ester, an effective dihydrogen phosphate anion sensing agent [PDF]

, 1999
The title compound, benzyl N-(ferrocenecarbonyl)glycinate, [Fe(C₅H₅)(C₁₅H₁₄NO₃)], a glycine benzyl ester derivative, is an effective anion sensor for electrochemically sensing the dihydrogen phosphate anion (H₂PO₄-).
Gallagher, John F., Kenny, Peter T.M., Sheehy, Michael J.   +2 more
core   +1 more source

Isomeric N-(iodophenyl)nitrophthalimides: interplay of C-H...O hydrogen bonds, iodo...nitro and iodo...carbonyl interactions, and aromatic pi...pi stacking interactions.

Acta Crystallographica Section B Structural Science, 2005
The six isomeric N-(iodophenyl)nitrophthalimides, C(14)H(7)IN(2)O(4), have been synthesized and the structures of five of them are reported. In N-(4-iodophenyl)-4-nitrophthalimide [(I), orthorhombic P2(1)2(1)2(1)] the molecules are linked into sheets by ...
C. Glidewell, J. N. Low, J. Skakle, S. Wardell, J. Wardell   +4 more
semanticscholar   +1 more source

Ethyl 4-(4-chloroanilino)-1-(4-chlorophenyl)-2-methyl-5-oxo-2,5-dihydro-1H-pyrrole-2-carboxylate

Acta Crystallographica Section E, 2013
In the title compound, C20H18Cl2N2O3, the dihedral angles between the central 2,5-dihydro-1H-pyrrole ring and the phenyl rings are 74.87 (9) and 29.09 (9)°. Intramolecular N—H...O and C—H...O hydrogen bonds occur.
Mustafa R. Albayati, Francisco Santoyo-Gonzalez, Mahmoud A.A. Elremaily, Shaaban K. Mohamed, Mehmet Akkurt   +4 more
doaj   +1 more source

14-Bromo-12-chloro-2,16-dioxapentacyclohenicosa-3(8),10,12,14-tetraene-7,20-dione [PDF]

, 2013
In the title compound, C19H16BrClO4, both the fused xanthene rings and one of the cyclohexane rings adopt envelope conformations, while the other cyclohexane ring is in a chair conformation. In the crystal, molecules are linked by C-H...O hydrogen bonds,
Abdelhamid, Adel A. E. Marzouk, Alan R. Kennedy, Antar A. Abdelhamid, Cremer, Farrugia, Gobbi, Lu, Mehmet Akkurt, Mohamed, Mohamed, Na, Shaaban K. Mohamed, Sheldrick, Spek   +14 more
core   +1 more source