Thermal and ac electrical properties of N-methylanthranilic acid below room temperature

A solid-solid phase transition was observed at 265.41 K for N-methylanthranilic acid. The two phases had significantly different thermal and ac electrical properties. Before the phase transition, the material exhibited lower thermal motion, more order, higher ac conductivity, and lower real dielectric relative permittivity, and thus less stored energy, more dissipation, and more relaxation processes.244