Results 61 to 70 of about 587,171 (161)

2-Amino-1-methyl-1H-imidazol-4(5H)-one dimethyl sulfoxide monosolvate [PDF]

open access: yes, 2010
In the title compound, C4H7N3O·C2H6OS, creatinine [2-amino-1-methyl-1H-imidazol-4(5H)one] exists in the amine form. The ring is planar (r.m.s. deviation for all non-H atoms = 0.017 Å).
Tutughamiarso, Maya Oktavia   +1 more
core   +1 more source

9-Aminoacridin-10-ium 4-aminobenzoate dihydrate [PDF]

open access: yes, 2014
The asymmetric unit of the title hydrated salt, C13H11N2 +.-C7H6NO2-.2H2O, consists of two independent 9-aminoacridinium cations, two 4-aminobenzoate anions and four water molecules.
Arshad, Suhana   +4 more
core   +3 more sources

5,7-Dimethyl-1H-indole-2,3-dione

open access: yesIUCrData, 2017
The title compound, C10H9NO2, crystallizes with four molecules in the asymmetric unit. The molecules are all near planar, with the non-H atoms possessing mean deviations from planarity of 0.017, 0.026, 0.020 and 0.007 Å.
Matthew F. Perez   +3 more
doaj   +1 more source

Guanidinium 2-Carboxy-6-Nitrobenzoate Monohydrate: A Two-Dimensional Hydrogen-Bonded Network Structure [PDF]

open access: yes, 2007
In the structure of the title compound, CH6N3+ . C8H4NO6- . H2O, obtained from the reaction of guanidine carbonate with 3-nitrophthalic acid, the 2-carboxylic acid group is deprotonated and participates in an asymmetric cyclic R2/1(6) hydrogen-bonding ...
Healy, Peter   +2 more
core   +2 more sources

Ethyl 2-(2,5-dioxo-4,4-diphenylimidazolidin-1-yl)acetate

open access: yesIUCrData, 2017
The five-membered ring of the title compound, C19H18N2O4, adopts an envelope conformation. In the crystal, pairwise N—H...O hydrogen bonds form centrosymmetric dimers which are connected into chains parallel to the c-axis direction by pairwise C—H...O ...
Youssef Ramli   +5 more
doaj   +1 more source

Investigation of the crystal structures of n-(4-fluorobenzoyl) benzenesulfonamide and n-(4-fluoro-benzoyl)-4-methylbenzenesulfonamide [PDF]

open access: yes, 1977
The title compound, C26H26N2O7, is a thia­midine derivative. Geometric parameters are in the usual ranges. The crystal packing is stabilized by a classical N—H⋯O hydrogen bond, several weak C—H⋯O hydrogen bonds and a π–π stacking inter ...
Suchetan, P. A.   +6 more
core   +2 more sources

Crystal and geometry-optimized structure, and Hirshfeld surface analysis of 1-(2-bromoethyl)indoline-2,3-dione

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
In the title compound, C10H8BrNO2, the isatin (1H-indole-2,3-dione) moiety is nearly planar (r.m.s. deviation = 0.026 Å). In the crystal, molecules are linked by C—H...O hydrogen bonds, forming layers parallel to the ab plane, and enclosing R44(24) loops.
N. Sharmila   +3 more
doaj   +1 more source

Syntheses and crystal structures of 2,2,5-trimethyl-1,3-dioxane-5-carboxylic acid and 2,2,5-trimethyl-1,3-dioxane-5-carboxylic anhydride

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2020
In 2,2,5-trimethyl-1,3-dioxane-5-carboxylic acid, C8H14O4, the carboxyl group occupies an equatorial position on the 1,3-dioxane ring. In the crystal, O—H...O hydrogen bonds form chains of molecules, which are linked into a three-dimensional network by C—
Joseph A. Giesen   +2 more
doaj   +1 more source

2,6-Diacetylpyridine-resorcinol (1/1) [PDF]

open access: yes, 2012
The title co-crystal, C9H9NO2·C6H6O2, is composed of one 2,6-diacetylpyridine molecule and one resorcinol molecule as the asymmetric unit. In the 2,6-diacetylpyridine molecule, the two carbonyl groups are antiperiplanar to the pyridine N atom.
Anwar   +9 more
core   +2 more sources

1,5-Bis[1-(2,4-dihydroxyphenyl)ethylidene]carbonohydrazide dimethylformamide disolvate

open access: yesActa Crystallographica Section E, 2010
In the title compound, C17H18N4O5·2C3H7NO, two solvent molecules are linked to the main molecule via N—H...O and O—H...O hydrogen bonds, forming a hydrogen-bonded trimer.
Qing-Peng He, Bo Tan, Ze-Hua Lu
doaj   +1 more source

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