Crystal Structure and Density Functional Calculation of (E)-4-Hydroxy-3-methyl-N'-(thiophen-2-ylmethylene)-1, 4-dihydroquinoxaline-2-carbohydrazide Radical?? Ibrahim, M. M.; Al-Refai, M.; Abu-El-Halawa, R.; Massad, H. M; Judeh, Z.; Ali, B. F. Asian J. Chem. 2012, 24, pp. 2926-2930.
