(Z)-6-{[1,3-Dihydroxy-2-(hydroxymethyl)propan-2-ylamino]methylene}-2-methoxy-4-[(E)-o-tolyldiazenyl]cyclohexa-2,4-dienone.
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Journal Article↗
Biomedical subjects
Mustafa Odabaşoğlu
Publications and source records attributed to Mustafa Odabaşoğlu.
Propynylferrocene and (phenylethynyl)ferrocene.
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Alkynes↗
(Z)-6-{[1,3-Dihydroxy-2-(hydroxymethyl)propan-2-yliminio]methyl}-2-ethoxyphenolate, (Z)-6-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yliminio]methyl}-4-nitratocyclohexa-2,4-dienone monohydrate and (R,E)-2-[(1-hydroxybutan-2-ylimino)methyl]phenol.
The title compounds C(13)H(19)NO(5), C(11)H(14)N(2)O(6)xH(2)O and C(11)H(15)NO(2), respectively, have been derived from 3-ethoxysalicylaldehyde, 5-nitrosalicylaldehyde and salicylaldehyde, respectively. The C-O and N-C bond distances, and three hydrogen bonds formed by the phenolate O atom, show that the zwitterionic form exists in the first compound. The second compound is transformed to the quinoid form as a result of resonance between the zwitterionic form and the nitro group. The third compound exists in the phenol-imine form, with appropriate C-N and C-O bond distances.
Heterocyclic Compounds, 2-Ring↗
(Z)-4-(2,6-Dichlorophenyldiazenyl)-6-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-ylamino]methylene}-2-methoxycyclohexa-2,4-dienone and the 3-methoxyphenyldiazenyl and 4-methoxyphenyldiazenyl analogues.
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Journal Article↗
1,3-Bis(4-methylphenyl)triazene, 1-(4-chlorophenyl)-3-(4-fluorophenyl)triazene and 1-(4-fluorophenyl)-3-(4-methylphenyl)triazene.
The title 4,4'-disubstituted diphenyl-1,3-triazines, C14H15N3, (I), C12H9ClFN3, (II), and C13H12FN3, (III), each contain a triazene group (-N=N-NH-) having an extended conformation. The dihedral angles between the two benzene rings in (I), (II) and (III) are 4.3, 3.4 and 6.5 degrees , respectively. The molecules are almost entirely planar, with maximum deviations from the mean planes of 0.1087 (2), -0.1072 (7) and 0.1401 (3) A, respectively. In each compound, the molecules are linked by N-H...N hydrogen bonds to form chains and pack similarly in the crystal structures.
Crystallography, X-Ray↗
(2-Hydroxyethyl)hydrazinium(2+) dichloride.
The crystal structure of the title compound, C2H10N2O(2+).2Cl-, is built up from one 2-hydroxyethylhydrazinium(2+) cation and two Cl- anions. The molecular structure is stabilized by O-H...Cl and N-H...Cl hydrogen bonds. The crystal structure is stabilized by one N-H...O and three N-H...Cl interactions, and the three-dimensional network of hydrogen bonds stabilizes the crystal packing. All five hydrazinium H atoms are involved in hydrogen bonds to Cl- anions. The Cl...H contact distances range from 2.122 (15) to 2.809 (14) A.
Journal Article↗
N-cinnamoylsaccharin.
The title compound [systematic name: 2-cinnamoyl-1,2-benzisothiazol-3(2H)-one 1,1-dioxide], C16H11NO4S, contains both saccharin and cinnamoyl groups. The molecule is approximately planar in the solid state, and adjacent molecules are connected by C-H...O and C-H...pi(phenyl) interactions. In the C-H...pi interaction, the C...CgA distance is 3.916 (4) A (CgA is the non-fused benzene ring centroid) and the C-H...pi angle is 156 (2) degrees . A feature of the molecular geometry is the narrow C-S-N angle of 92.51 (9) degrees in the five-membered ring. This angle relieves strain from the ring and makes it possible for the whole saccharin group to become quite planar.
Cinnamates↗
2,6-dimethyl-1,4-benzoquinone 4-monooxime.
Molecules of the title compound, C8H9NO2, are linked into sheets by a combination of C-H...N, O-H...N and O-H...O hydrogen bonds and C-H...pi interactions. The hydrogen bonds are arranged as described by the graph-set ring notations R(2)(2)(7) and R(3)(3)(5), and a C8 chain motif. There are two planar symmetry-independent molecules in the asymmetric unit, with a dihedral angle of 19.24 (5) degrees between their least-squares mean planes.
Benzoquinones↗
2-Aminopyridinium-fumarate-fumaric acid (2/1/1).
The title complex, 2C5H7N2+.C4H2O42-.C4H4O4, contains cyclic eight-membered hydrogen-bonded rings involving 2-aminopyridinium and fumarate ions. The fumaric acid molecules and fumarate ions lie on inversion centers and are linked into zigzag chains by O-H...O hydrogen bonds. The dihedral angle between the pyridinium ring and the hydrogen-bonded fumarate ion is 7.60 (4) degrees. The fumarate anion is linked to the pyridinium cations by intermolecular N-H...O hydrogen bonds. The heterocycle is fully protonated, thus enabling amine-imine tautomerization.
Journal Article↗
3-Hydroxy-6-[(4-hydroxyphenylamino)methylene]cyclohexa-2,4-dienone and 2-hydroxy-6-[(4-hydroxyphenylamino)methylene]cyclohexa-2,4-dienone.
The title compounds, both C(13)H(11)NO(3), 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 for the keto-amine tautomeric form in the solid state. The 2-hydroxy isomer has two independent molecules, with the molecules linked by intramolecular N-H.O and O-H.O and intermolecular O-H.O hydrogen bonds into three-dimensional networks.
Journal Article↗
5-(2-Chlorophenyldiazenyl)salicylaldehyde and 4-(2-chlorophenyldiazenyl)-2-[[tris(hydroxymethyl)methyl]aminomethylene]cyclohexa-3,5-dien-1(2H)-one.
The molecule of the former title compound, C(13)H(9)ClN(2)O(2), (I), is nearly planar, with an intramolecular O...O hydrogen bond of 2.692 (2) A. The latter title compound, C(17)H(18)ClN(3)O(4), (II), exists in the keto-amine tautomeric form, with a strong intramolecular hydrogen bond of 2.640 (2) A between the O and N atoms, the H atom being bonded to the N atom. The azobenzene moieties of both molecules have trans configurations, and the dihedral angle between the planes of the two aromatic rings is 4.1 (1) degrees in (I) and 9.9 (1) degrees in (II). The N-H...O hydrogen-bonded rings are almost planar and coupled with the cyclohexadiene rings in (II).
Journal Article↗
2-[[tris(hydroxymethyl)methyl]aminomethylene]cyclohexa-3,5-dien-1(2H)-one and its 6-hydroxy and 6-methoxy derivatives.
The title compounds, 2-[[tris(hydroxymethyl)methyl]aminomethylene]cyclohexa-3,5-dien-1(2H)-one, C(11)H(15)NO(4), (I), 6-hydroxy-2-[[tris(hydroxymethyl)methyl]aminomethylene]cyclohexa-3,5-dien-1(2H)-one, C(11)H(15)NO(5), (II), and 6-methoxy-2-[[tris(hydroxymethyl)methyl]aminomethylene]cyclohexa-3,5-dien-1(2H)-one, C(12)H(17)NO(5), (III), adopt the keto-amine tautomeric form, with the formal hydroxy H atom located on the N atom, and the NH group and oxo O atom display a strong intramolecular N-H.O hydrogen bond. The N-H...O hydrogen-bonded rings are almost planar and coupled with the cyclohexadiene rings. The carbonyl O atoms accept two other H atoms from the alcohol groups of adjacent molecules in (I), and one from the alcohol and one from the phenol group in (II), but from only one alcohol H atom in (III).
Journal Article↗
4-[(3-chlorophenyl)diazenyl]-2-([tris(hydroxymethyl)methyl]aminomethylene)cyclohexa-3,5-dien-1(2H)-one.
The title compound, C(17)H(18)ClN(3)O(4), adopts the keto-amine tautomeric form and displays an intramolecular N-H...O hydrogen bond [N...O = 2.639 (2) A]. The configuration around the azo N=N double bond is trans, and the dihedral angle between the planes of the two aromatic rings is 20.5 (2) degrees. The molecules are linked by O-H...O hydrogen bonds to form a three-dimensional network.
Journal Article↗
2-Aminopyridinium-succinate-succinic acid (2/1/1).
In the title compound, 2C(5)H(7)N(2)(+).C(4)H(4)O(4)(2-).C(4)H(6)O(4), cyclic eight-membered hydrogen-bonded rings exist involving 2-aminopyridinium and succinate ions. The succinic acid and succinate moieties lie on inversion centres. Succinic acid molecules and succinate ions are linked into zigzag chains by O-H.O hydrogen bonds, with O.O distances of 2.6005 (16) A.
Journal Article↗