6-(4-Pyridyl)-3-(3,4,5-trimethoxyphenyl)-1,2,4-triazolo[3,4-b][1,3,4]thiadiazole
نویسندگان
چکیده
In the mol-ecule of the title compound, C(17)H(15)N(5)O(3)S, the planar central heterocylic ring system is oriented at dihedral angles of 5.32 (4) and 9.41 (4)°, respectively with respect to trimethoxy-phenyl and pyridine rings. Intra-molecular C-H⋯N, C-H⋯O and C-H⋯S hydrogen bonds result in the formation of a nearly planar six-membered ring, which is oriented at a dihedral angle of 3.07 (5)° with respect to the central heterocylic ring system, and non-planar six- and five-membered rings having twist and envelope conformations, respectively. In the crystal structure, inter-molecular C-H⋯N and C-H⋯O hydrogen bonds link the mol-ecules. There is a C-H⋯π contact between the pyridine ring and a methyl group and a π-π contact between the central heterocylic ring system and the trimethoxy-phenyl ring [centroid-centroid distance = 3.758 (1) Å].
منابع مشابه
6-(3-Pyridyl)-3-(3,4,5-trimethoxyphenyl)-1,2,4-triazolo[3,4-b][1,3,4]thiadiazole
In the mol-ecule of the title compound, C(17)H(15)N(5)O(3)S, the planar central heterocylic ring system is oriented with respect to the benzene and pyridine rings at dihedral angles of 6.61 (3) and 19.22 (3)°, respectively. An intra-molecular C-H⋯N hydrogen bond results in the formation of a six-membered ring, adopting a flattened boat conformation. In the crystal structure, inter-molecular C-H...
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