Güncel Gönderiler: Kimya Bölümü
Toplam kayıt 105, listelenen: 21-40
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N-(3-Chloro-4-methoxyphenyl)-N '-hydroxy-2-oxo-2-phenylacetamidine
(Blackwell Munksgaard, 2003)The title compound, C15H13N2O3Cl, consists of two aromatic groups linked through the C=N-OH monoxime group. Intermolecular O-H...N, N-H...Cl hydrogen bonds [O...N 2.773 (2), N...Cl 3.719 (2) Angstrom] are highly effective ... -
2-{[Tris(hydroxymethyl)methyl]amino-methylene}cyclohexa-3,5-dien-1(2H)-one and its 6-hydroxy and 6-methoxy derivatives
(Int Union Crystallography, 2003)The title compounds, 2-{[tris(hydroxymethyl)methyl]aminomethylene}cyclohexa-3,5-dien-1(2H)-one, C11H15NO4, (I), 6-hydroxy-2-{[tris (hydroxymethyl)methyl] aminomethylene}-cyclohexa-3,5-dien-1(2H)-one, C11H15NO5, (II), and ... -
Dinicotinamidium squarate
(Blackwell Munksgaard, 2003)The crystal structure determination of the dinicotinamidium squarate salt, 2C(6)H(7)N(2)O(+).C4O42-, is reported, with the squarate dianion residing on an inversion centre and the unique cation in a general position. Salt ... -
1-[N-(p-Hydroxyphenyl)aminomethyl-idene]naphthalen-2(1H)-one propan-1-of hemisolvate
(Blackwell Munksgaard, 2004)The title compound, 2C(17)H(13)NO(2).C3H8O, adopts the ketoamine tautomeric form, with strong intramolecular N-H...O and intermolecular O-H...O hydrogen bonds which form an almost planar two-dimensional network. The ... -
N-Hydroxy-N '-(1-naphthyl)-2-phenylacet-amidin-2-one
(Blackwell Munksgaard, 2004)The title compound, C18H14O2N2, consists of an aminonaphthalene group and a 2-phenyl-1,2-ethanedione 1-oxime group. Intermolecular O-H...N and O-H...O hydrogen bonds [O...N = 2.775 (2) Angstrom and O...O = 3.252 (2) ... -
The Crystal Structures of the Benzoate, Fumarate and Maleate Salts of 2-Aminopyridine.
(Int Union Crystallography, 2004)… -
N '-(2,6-dimethylphenyl)-N-2-hydroxy-alpha-oxo-alpha-phenylacetamidine
(Int Union Crystallography, 2004)The structure of the title compound, C16H16N2O2, consists of a dimeric arrangement around an inversion centre of acetamidine molecules linked via O-H...N hydrogen bonds. There are also H...pi-ring interactions. All these ... -
3-(6-benzoyl-5-chloro-2-oxo-2,3-dihydro-1,3-benzoxazol-3-yl)propanoic acid
(Int Union Crystallography, 2004)… -
N-(3-chloro-4-methylphenyl)-N '-hydroxy-2-oxo-2-phenylacetamidine
(Int Union Crystallography, 2004)… -
Dimethyl 2,2 '-(4,5-dicyano-o-phenylenedioxy)dibenzoate
(Int Union Crystallography, 2004)There are two independent molecules in the structure of the title compound, C24H16N2O6, one in a general position, the other on a twofold axis of space group Pbcn. There are thus one and a half molecules in the asymmetric ... -
2-[Benzoyl(hydroxyimino)methylamino]benzoic acid
(Blackwell Munksgaard, 2004)The structure of the title compound, C15H12N2O4, consists of a polymeric arrangement, around inversion centres, of molecules linked through O-H...N and O-H...O hydrogen bonds; there are also intramolecular hydrogen bonds. ... -
1-methyl-3,5-diphenyl-1H-1,2,4-triazole
(Int Union Crystallography, 2004)Two independent but virtually identical molecules comprise the asymmetric unit in the title compound, C15H13N3, in each of which the triazole ring is planar. -
1-[(2-hydroxy-5-methylphenylamino)-methylene]naphthalen-2(1H)-one
(Int Union Crystallography, 2004)The molecule of the title compound, C18H15NO2, is not completely planar. It adopts a keto-amine tautomeric form with an intramolecular N-H...O and an intermolecular O-H...O hydrogen bond. The molecules are linked by O-H...O ... -
1-[(4-Nitrophenylamino)methylene]naphthalen-2(1H)-one
(Int Union Crystallography, 2004)The molecule of the title compound, C17H12N2O3, is nearly planar and adopts a keto-amine tautomeric form, with an intramolecular N - H ... O hydrogen bond. -
3-hydroxy-6-[(4-hydroxyphenylamino)methylene]cyclohexa-2,4-dienone and 2-hydroxy-6-[(4-hydroxyphenylamino)-methylene]cyclohexa-2,4-dienone
(Int Union Crystallography, 2004)The title compounds, both C13H11NO3, exist as the keto-amine tautomers, and the formal hydroxyl H atoms, which display strong intramolecular hydrogen bonds, are located on the N atoms. This is a verification of the preference ... -
1-[(4-acetylphenylamino)methylene]naphthalen-2(1H)-one
(Blackwell Munksgaard, 2004)The molecule of the title compound, C19H15NO2, is nearly planar and adopts the keto-amine tautomeric form, with a strong intramolecular N-H...O [2.5383 (17) Angstrom] hydrogen bond. -
2-(Benzothiazol-2-yliminomethyl)-6-methoxyphenol
(Int Union Crystallography, 2004)The crystal structure of the title compound, C15H12N2O2S, consists of a dimeric arrangement of molecules linked through C5-H5...O2 and O1-H1...S1 hydrogen bonds. -
Bis[N-(2,6-dimethylphenyl)aminophenylglyoximato-kappa N-2,N ']nickel(II) dimethyl sulfoxide solvate
(Int Union Crystallography, 2004)In the title compound, [Ni(C16H16N3O2)(2)].C2H6OS, the Ni-II atom lies on a crystallographic centre of symmetry and its coordination geometry is distorted square-planar, involving four N atoms from two oxime ligands. The ...
