منابع مشابه
2-Amino-3-methylpyridinium 2-amino-5-methylpyridinium sulfate monohydrate
The asymmetric unit of the title compound, 2C(6)H(9)N(2) (+)·SO(4) (2-)·H(2)O, contains two isomeric protonated amino-methyl-pyridine cations, a sulfate anion and a solvent water mol-ecule. The cations are in the iminium tautomeric form. In the crystal structure, inter-molecular O-H⋯O, N-H⋯O and weak C-H⋯O hydrogen bonds link the components into a three-dimensional network. Additional stabiliza...
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The title compound, C(12)H(10)N(4)O, is a Schiff base obtained from the condensation of diamino-maleonitrile and 2-hy-droxy-3-methyl-benzaldehyde. The mol-ecule is roughly planar, with an r.m.s. deviation of 0.0354 Å, and adopts the phenol-imine tautomeric form. An intra-molecular O-H⋯N hydrogen bond involving the O-H group and the azomethine N atom generates an S(6) ring. In the crystal, there...
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In this research at the first 2-amino-3-(3,4-dihydroxyphenyl)-2-methyl-propanoic acid drug and its fullerene derivative were optimized. NMR calculations for the complexes were carried out at the B3LYP/6-31G*quantum chemistry level. Different parameters such as energy levels, the amount of Chemical Shift in different atoms, the amount of HOMO/LUMO, chemical potential (µ ), chemical hardness (η)...
متن کامل2-Amino-3-nitrobenzoic acid
The title compound, C(7)H(6)N(2)O(4), is approximately planar (r.m.s. deviation = 0.026 Å for the 13 non-H atoms). The mol-ecular structure is stabilized by intra-molecular N-H⋯O hydrogen bonds, which generate S(6) ring motifs. In the crystal, mol-ecules are linked via inter-molecular N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds into a three-dimensional network.
متن کامل2-Amino-3-ammoniopyridinium dichloride
The asymmetric unit of the title compound, C(5)H(9)N(3) (2+)·2Cl(-), contains two diprotonated 2,3-diamino-pyridine cations and four chloride anions. In the crystal structure, the anions and cations are connected by inter-molecular N-H⋯Cl and C-H⋯Cl hydrogen bonds, forming a three-dimensional network. The crystal structure is further stabilized by π-π inter-actions between pyridinium rings [cen...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1974
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.94.10_1322