Spectral and X-ray Diffraction Studies of <Emphasis Type="Italic">N</Emphasis>-(2-Nitrophenyl)-5-Phenyl-1,3,4-Oxadiazole-2-Amine |
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| Authors: | A V Aparna Ch Sarala Devi A Padmaja B Sireesha P Raghavaiah |
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| Institution: | (1) Department of Chemistry, Nizam College, Osmania University, Hyderabad, 500001, India;(2) Department of Chemistry, PG College of Science, Osmania University, Hyderabad, 500004, India;(3) School of Chemistry, University of Hyderabad, Hyderabad, 500046, India |
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| Abstract: | Abstract Thiosemicarbazides and their derivatives are well known for their use in biological activity and many applications in pharmaceutical
and industrial fields. The cyclization of 1-benzoyl-4-(2-nitrophenyl)-3-thiosemicarbazide (BNPTSC) in dimethylformamide (DMF)
medium furnished N-(2-nitrophenyl)-5-phenyl-1,3,4-oxadiazole-2-amine (NPPOA). The chemical structure of the above substituted 1,3,4-oxadiazole
has been assigned by IR, mass and X-ray diffraction studies. The XRD studies reveal the presence of four types of hydrogen
bonds (N–H···O, N–H···N, C–H···O, C–H···N) in the crystal packing. The crystal system was found to be orthorhombic with a
space group Pca2(1) and the unit cell dimensions are: a = 26.873(3) ?, b = 6.0827(7) ?, c = 7.8502(10) ?, α = 90°, β = 90°, γ = 90° and Z = 4. |
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