Benzoin 4-Ethylthiosemicarbazone

Abstract

In the title compound, 2-hydroxy-1,2-diphenylethanone 4-ethylthiosemicarbazone, C<inf>17</inf>H<inf>19</inf>N<inf>3</inf>OS, the thiosemicarbazone moiety is planar and has an E configuration. The planar phenyl rings make dihedral angles of 82.34 (8) and 8.07 (17)° with the plane of the thiosemicarbazone moiety. The crystal structure contains two intramolecular (N - H⋯O and N - H⋯N) and one intermolecular interaction (O - H⋯S), as well as two C - H⋯π(benzene) interactions. Molecules are stacked in columns running along the a axis. Molecules in each column are connected to each other by means of linear O - H⋯S hydrogen bonds and C - H⋯π interactions. In addition, there are also C - H⋯π(benzene) interactions between the columns. © 2006 International Union of Crystallography.