Results 21 to 30 of about 576,288 (258)

2,6-Diamino-4-chloropyrimidinium 4-carboxybutanoate [PDF]

open access: yes, 2014
In the title molecular salt, C4H6ClN4+.C5H7O4 -, the cation is essentially planar, with a maximum deviation of 0.037 (1) A ° for all non-H atoms. The anions are self-assembled through O—H...O hydrogen bonds, forming a supramolecular zigzag chain with ...
Arshad, Suhana   +5 more
core   +2 more sources

5,13-Bis(4-methoxyphenyl)dinaphtho[2,3-b:2′,3′-d]thiophene S,S-dioxide dichloromethane hemisolvate

open access: yesIUCrData, 2019
The title compound, C34H24O4S·0.5CH2Cl2, crystallizes with two independent molecules and one dichloromethane solvent molecule in the asymmetric unit. The crystal packing is consolidated by C—H...O hydrogen bonds.
R. Manickam   +4 more
doaj   +1 more source

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

open access: yes, 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

Diethyl [(4-bromophenyl)(5-chloro-2-hydroxyanilino)methyl]phosphonate

open access: yesActa Crystallographica Section E, 2009
In the title compound, C17H20BrClNO4P, intermolecular C—H...O and N—H...O hydrogen bonds form centrosymmetric R22(10) dimers linked through O—H...O intermolecular hydrogen bonds, which form centrosymmetric R22(16) dimers ...
V. H. H. Surendra Babu   +4 more
doaj   +1 more source

3-(2-Hydroxyphenyl)-5-(2-methoxyphenyl)-1H-pyrazole [PDF]

open access: yes, 2008
The title compound, C16H14N2O2, was derived from 1-(2-hydroxyphenyl)-3-(2-methoxyphenyl)propane-1,3-dione. The molecule is essentially planar (r.m.s. deviation for all non-H atoms = 0.089 Å).
Ahmad   +5 more
core   +1 more source

2-Amino-4-methylpyrimidinium dihydrogen phosphate

open access: yesActa Crystallographica Section E, 2013
A charge-assisted hydrogen-bonding network involving N—H...O and O—H...O hydrogen bonds stabilizes the crystal of the title salt, C5H8N3+·H2PO4−.
Sajesh P. Thomas, Jyothi Sunkari
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

4,4´-[4,4´-(Perfluoropropane-2,2-diyl)-bis(4,1-phenyleneoxy)]dianiline [PDF]

open access: yes, 2009
In the title compound, C27H20F6N2O2, the dihedral angles between the planes of the aromatic rings connected by the ether O atoms are 84.13 (8) and 75.06 (9)°. The crystal structure is stabilized by N-H...O and N-H...F hydrogen bonds.
Nawaz, Haq   +3 more
core   +2 more sources

(2E)-1-(3,5-Dihydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one

open access: yesActa Crystallographica Section E, 2014
In the title compound, C16H14O4, the benzene rings are inclined to one another by 4.91 (7)°. The conformation about the C=O and C=C bonds is trans and cis, respectively.
K. S. Ezhilarasi   +4 more
doaj   +1 more source

N,N,N-Triethylethanaminium 5,11,17,23-tetra-tert-butyl-25-cyanomethoxy-26,28-dihydroxy-27-oxido-2,8,14,20-tetrathiacalix[4]arene: a molecular salt

open access: yesIUCrData, 2016
In the title molecular salt, C8H20N+·C42H48NO4S4−, the conformation of the anionic tetrathiacalix[4]arene, which is cone-shaped, is primarily determined by intramolecular O—H...O hydrogen bonds.
Omran A. Omran   +4 more
doaj   +1 more source

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