N-[(E)-(5-Methylthiophen-2-yl)methylidene]-1H-1,2,4-triazol-3-amine
نویسندگان
چکیده
In the title Schiff base, C(8)H(8)N(4)S, a condensation product of 5-methyl-thio-phene-2-carboxaldehyde and 3-amino-1,2,4-triazole, the dihedral angle between the triazolyl and thienyl rings is 6.44 (14)°. The compound exists as a polymeric chain arising from inter-molecular N-H⋯N bonding.
منابع مشابه
N-[(Z)-(1-Methyl-1H-pyrrol-2-yl)methylidene]-1H-1,2,4-triazol-5-amine
In the title compound, C(8)H(9)N(5), a Schiff base derived from N-methyl-pyrrole-2-carbaldehyde and 3-amino-1,2,4-triazole, the C=N double bond linking the two aromatic rings has a Z conformation. The two rings are twisted by 24.20 (5)°. A chain motif results from N-H⋯N hydrogen bonding.
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In the title compound, C(8)H(8)N(4)·C(8)H(8)N(4), two tautomers, viz. 3-phenyl-1,2,4-triazol-5-amine and 5-phenyl-1,2,4-triazol-3-amine, are crystallized together in equal amounts. The 3-phenyl-1,2,4-triazol-5-amine mol-ecule is essentially planar; the phenyl ring makes a dihedral angle of 2.3 (2)° with the mean plane of the 1,2,4-triazole ring. In the 5-phenyl-1,2,4-triazol-3-amine tautomer, t...
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The crystal structure of the title compound, C(21)H(19)N(5)O(3), is stabilized by inter-molecular N-H⋯N and C-H⋯O hydrogen bonds. The mol-ecule contains a planar [maximum deviations = -0.026 (1) and 0.027 (2) Å] benzofuran ring system, which forms dihedral angles of 78.75 (8) and 39.78 (7)° with the benzene and triazole rings, respectively.
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The centrosymmetric mol-ecule of the title compound, [Zn(C(16)H(11)N(6))(2)(H(2)O)(2)], contains one Zn(2+) ion located on a center of symmetry, two 3-[4-(1H-imidazol-1-yl)phen-yl]-5-(pyridin-2-yl)-1H-1,2,4-triazol-1-ide (Ippyt) ligands and two coordinating water mol-ecules. The Zn(II) ion is six-coordinated in a distorted octa-hedral coordination geometry by four N atoms from two Ippyt ligands...
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In the centrosymmetric title complex, [Fe(C18H12N5)2(H2O)2], the Fe(II) ion, lying on an inversion centre, is coordinated by two N,N'-bidentate 5-(pyridin-2-yl)-3-[4-(pyridin-4-yl)phen-yl]-1H-1,2,4-triazol-1-ide ligands and two water mol-ecules in a trans-FeO2N4 geometry. In the ligand, the triazole ring makes dihedral angles of 5.21 (18) and 6.7 (2)°, respectively, with the adjacent pyridine a...
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