Results 21 to 30 of about 663,128 (258)

2-Phenyl-N′-(2-phenylacetyl)acetohydrazide

Acta Crystallographica Section E, 2012
In the title compound, C16H16N2O2, the N′-acetylacetohydrazide group is approximately planar (r.m.s. deviation = 0.018 Å for the eight non-H atoms) and makes dihedral angles of 81.92 (6) and 65.19 (6)&#
Hatem A. Abdel-Aziz, Ching Kheng Quah, Hoong-Kun Fun   +2 more
doaj   +1 more source

Assembling an isomer grid: the isomorphous 4-, 3- and 2-fluoro-N'-(4-pyridyl)benzamides [PDF]

, 2008
The three title isomers, 4-, (I), 3-, (II), and 2-fluoro-N'-(4-pyridyl)benzamide, (III), all C₁₂H₉FN₂O, crystallize in the P21/c space group (No. 14) with similar unit-cell parameters and are isomorphous and isostructural at the primary hydrogen-bonding ...
Donnelly, Katie, Gallagher, John F., Lough, Alan J.   +2 more
core   +1 more source

2-[4,5-Diphenyl-2-(pyridin-4-yl)-1H-imidazol-1-yl]ethanol

IUCrData, 2017
The basic building blocks of the three-dimensional structure of the title compound, C22H19N3O, are helical chains running along the [101] direction and formed by O—H...N hydrogen bonds. C—H...O hydrogen bonds between chains generate sheets which are then
Joel T. Mague, Shaaban K. Mohamed, Mehmet Akkurt, Adel A. Marzouk, Mustafa R. Albayati   +4 more
doaj   +1 more source

Diethyl 2,6-Dimethyl-4-(naphthalen-1-yl)-1,4-Dihydropyridine-3,5-Dicarboxylate [PDF]

, 2016
In the title compound, C23H25NO4, the 1,4-dihydropyridine ring adopts a flattened boat conformation. The naphthalene ring system forms a dihedral angle of 88.59 (6)° with the pyridine ring.
Noor Shahina Begum, ., Prasad, N.L.
core   +1 more source

Crystal structure of ethyl 2-({[(4Z)-3,5-dioxo-1-phenylpyrazolidin-4-ylidene]methyl}amino)acetate

Acta Crystallographica Section E, 2014
The title compound, C14H15N3O4, is nearly planar, the dihedral angle between the planes of the phenyl and pyrazolidine rings being 1.13 (7) Å, and that between the plane of the pyrazolidine ring and the mean plane of the side chain [C—N—C–C(=O)—O; r.m.s.
Shaaban K. Mohamed, Mehmet Akkurt, Joel T. Mague, Eman A. Ahmed, Mustafa R. Albayati   +4 more
doaj   +1 more source

4-(2-Methoxyphenyl)piperazin-1-ium 6-chloro-5-isopropyl-2,4-dioxopyrimidin-1-ide [PDF]

, 2014
In the cation of the title salt, C11H17N2O+.C7H8ClN2O2 -, the piperazine ring adopts a distorted chair conformation and contains a positively charged N atom with quaternary character.
A. El-Emam, Ali, A. Ghabbour, Hazem, A. M. Al-Omary, Fatmah, Chidan Kumar, C. S., Hoong, Kun Fun   +4 more
core   +2 more sources

The effect of pressure on the crystal structure of hexagonal L-cystine [PDF]

, 2005
The crystal structure of hexagonal L-cystine has been determined at room temperature at pressures between 0.4 and 3.7 GPa; unit-cell dimensions were measured up to 6.4 GPa. The structure of this phase consists of molecules in their zwitterionic form, and
Allan, D R, Moggach, S A, Parsons, S, Sawyer, L, Warren, J E   +4 more
core   +1 more source

6-Nitro-1,10-phenanthrolin-5-amine

IUCrData, 2019
In the title compound, C12H8N4O2, the dihedral angle between the phenanthroline ring system and the nitro group is 23.75 (14)°. The molecule features intramolecular N—H...O and C—H...O hydrogen bonds.
U. Oosthuizen, M. Schutte-Smith, Hendrik G. Visser   +2 more
doaj   +1 more source

1,1,3,3-tetramethylguanidinium dihydrogenorthophosphate [PDF]

, 2000
In the title compound, C 5 H 14 N 3 + H 2 PO 4 ˇ , the cation has a central guanidinium fragment with a planar geometry, as expected for a central C sp 2 atom with a small charge delocalization along
Belsley, Michael, Criado-Vega, Alberto, de Matos Gomes, Etelvina, Dianez, Maria Jesus, Fernandes, Izolda Moura, Gomes E de M, null, Pérez-Garrido, Simeón   +6 more
core   +1 more source

Crystal structures of 2-[(4,6-diaminopyrimidin-2-yl)sulfanyl]-N-(naphthalen-1-yl)acetamide and 2-[(4,6-diaminopyrimidin-2-yl)sulfanyl]-N-(4-fluorophenyl)acetamide

Acta Crystallographica Section E: Crystallographic Communications, 2017
The title compounds, C16H15N5OS, (I), and C12H12FN5OS, (II), are [(diaminopyrimidine)sulfanyl]acetamide derivatives. In (I), the pyrimidine ring is inclined to the naphthalene ring system by 55.5 (1)°, while in (II), the pyrimidine ring is inclined to ...
S. Subasri, Timiri Ajay Kumar, Barij Nayan Sinha, Venkatesan Jayaprakash, Vijayan Viswanathan, Devadasan Velmurugan   +5 more
doaj   +1 more source