CRYSTAL STRUCTURE AND INTRAMOLECULAR HYDROGEN BONDING OF A SUBSTITUTED DIAMINOQUINOXALINE

摘要

A substituted diaminoquinoxaline, 2,3-diethyl-N~5,N~8-di(quinolin-8-yl)quinoxaline-5,8-diamine, was synthesized and characterized by a single-crystal X-ray diffraction study. The crystal structure of the molecule has a planar geometry-with intramolecular hydrogen bonding. The hydrogen bonding is also evaluated in a solution state by spectroscopic techniques.