title: 3-[2-(5-tert-Butyl-1,2-oxazol-3-yl)hydrazinyl-idene]chroman-2,4-dione.
abstract: In the title compound, C(16)H(15)N(3)O(4), the dihedral angle between the chromane and isoxazole rings [r.m.s. deviations = 0.042 and 0.007 Å, respectively] is 20.33 (12)°. The mol-ecular geometry is stabilized by an intra-molecular N-H⋯O hydrogen bond. In the crystal, N-H⋯O hydrogen bonds generate chains along the c-axis direction. The crystal studied was a non-morohedral twin.
authors: Group of Physics & Chemistry, Faculty of Natural Sciences & Mathematics, State University of Tetovo, 1200 Tetovo, Macedonia.
authors: Ahmed
authors: A
authors: Jashari
authors: Emil
authors: E
authors: Popovski
authors: Bozhana
authors: B
authors: Mikhova
authors: Rositsa P
authors: RP
authors: Nikolova
authors: Boris L
authors: BL
authors: Shivachev