2,4,6-Trinitro-N-(m-tolyl)aniline or N-picryl-m-toluidine (abbreviated as TMA), exhibiting color polymorphism, was synthesized and characterized structurally, spectroscopically, thermodynamically. The studies consider both the isolated molecule of compound (studied theoretically at DFT(B3LYP)/6-311++G(d,p) level experimentally by matrix-isolation infrared spectroscopy) its polymorphic crystalli...