Two manganese chloride organic–inorganic hybrid compounds showing strong luminescence and switchable phase transition and dielectric anomaly

Two organic–inorganic hybrid manganese halide perovskite compounds [Me 3 NNH 2 ]MnCl 3 and [(CH 3 ) 3 NCH 2 CH 2 F] 2 MnCl 4 exhibit switchable phase transition and dielectric anomaly, and also emit strong red and green luminescence.