Results 31 to 40 of about 39,583,625 (289)

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

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

Very Strong C−H···O, N−H···O, and O−H···O Hydrogen Bonds Involving a Cyclic Phosphate

open access: yes, 2016
Very short C−H···O, N−H···O, and O−H···O hydrogen bonds have been generated utilizing the cyclic phosphate [CH2(6-t-Bu-4-Me-C6H2O)2]P(O)OH (1). X-ray structures of (i) 1 (unsolvated, two polymorphs), 1·EtOH, and 1·MeOH, (ii) [imidazolium]+[CH2(6-t-Bu-4 ...
Sudha Kumaraswamy (2939061)   +2 more
core   +2 more sources

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

(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

Ferrocenecarboxylic acid-1,4-diazabicyclo[2.2.2]octane (2/1): sheets built from O-H ... N and C-H ... O hydrogen bonds

open access: yes, 2001
In the title compound, 2[Fe(C5H5)(C6H5O2)].C6H12N2, the molecular components are linked into finite three-component aggregates by strong O-H . . . N hydrogen bonds [O . . . N 2.578 (4) and 2.604 (5) Angstrom; O-H . . .
Ferguson, G   +3 more
core   +3 more sources

(E)-4-(2-Chloro-1-hydroxy-2,6,6-trimethylcyclohexyl)but-3-en-2-one

open access: yesActa Crystallographica Section E, 2012
In the title molecule, C13H21ClO2, there is an intramolecular C—H...Cl hydrogen bond. The conformation about the C=C bond is E and the six-membered ring has a chair conformation.
Shan Liu, Xiao-Yan Yang, Yu-Ling Zhang
doaj   +1 more source

1-(2,6-Dichlorobenzoyl)-3-(3-methoxyphenyl)thiourea [PDF]

open access: yes, 2009
The two aromatic rings in the title compound, C15H12Cl2N2O2S, enclose a dihedral angle of 37.49 (6)°. The molecule exists in the solid state in its thione form with typical thiourea C-S and C-O bonds lengths, as well as shortened C-N bonds.
Bolte, Michael   +5 more
core   +1 more source

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

open access: yesActa 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   +4 more
doaj   +1 more source

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