Crystal structure of (S)-2-amino-2-methylsuccinic acid
Acta Crystallographica Section E: Crystallographic Communications, 2015 The title compound, C5H9NO4, crystallized as a zwitterion. There is an intramolecular N—H...O hydrogen bond involving the trans-succinic acid and the ammonium group, forming an S(6) ring motif.
Isao Fujii
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Accurate Redeterminations of 1,1'-Dibenzoylferrocene and (4-Nitrophenyl)ferrocene [PDF]
, 1997 In the solid state, molecules of 1,1'-dibenzoylferrocene, [Fe(C₁₂H₉O)₂], (I), are linked to form infinite chains in the [100] direction via (cyclopentadienyl)C-H...O hydrogen bonds [C...O 3.354 (4) Å].
Ahmed, S. Zaka +4 more
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Ethyl 4-(4-hydroxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate monohydrate
Acta Crystallographica Section E, 2008 There are three formula units in the asymmetric unit of the title compound, C14H16N2O4·H2O. Molecules are linked by N—H...O hydrogen bonds into dimers with the common R22(8) graph-set motif.
T. N. Guru Row +4 more
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, 2010 The title compound, [systematic name: 5a-acetoxymethyl-3-isopropyl-8-methyl-1,2,3,3a,4,5,5a,6,7,10,10a,10b-dodecahydro-7,10-endo-epidioxycyclohepta[e]indene-3a-carboxylic acid], C22H32O6 (I), is closely related to methyl 5a-acetoxymethyl-3-isopropyl-8 ...
Brito, Iván +4 more
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(2E)-1-(3,5-Dihydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one
Acta 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
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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 +4 more
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5-Bromopyrimidin-2(1H)-one [PDF]
, 2007 The geometric parameters of the title compound, C4H3BrN2O, are in the usual ranges.
Ashalatha, B. V. +4 more
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Intramolecular N-H...O, intermolecular O-H...O, C-H...O and Csp³-H...πarene interactions in (2S)-2-{[(2R)-2-hydroxy-2-phenylethanoyl]amino}-4-methylpentanoic acid [PDF]
, 1999 The title compound, C₁₄H₁₉NO₄, forms a hydrogenbonded network in the solid state, consisting of one intramolecular N--H...O [N...O 2.569 (3)Å] and two intermolecular O--H...0=C [O...O 2.704(2) and 2.801 (2)Å] hydrogen bonds, with weaker C--H...O [C...O ...
Dalton, John P. +3 more
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Ethyl 3-methyl-1-oxo-4H-1,4-benzothiazine-2-carboxylate monohydrate
IUCrData, 2018 The organic molecule in the title hydrate, C12H13NO3S·H2O, is folded across the S...N vector. Chains two molecules thick extending along the a-axis direction are formed by N—H...O and O—H...O hydrogen bonds.
Yamna Baryala +5 more
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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 +4 more
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