Near‐Room‐Temperature Synergetic Response of Magnetism, Dielectricity and Luminescence Based on (C5NH13Cl)2MnBr4

Multifunctional materials with working temperatures near room temperature are crucial for practical applications. Until now, it is still a great challenge to obtain such materials. In this paper, a complex of (C5NH13Cl)2MnBr4 (1) with a structural phase transition near room temperature is reported. The phase transition induces switchable magnetic properties, dielectric anomalies and luminescent response over the same range of temperatures. It is the first time the synergetic effect of magnetism, dielectricity and luminescence near room temperature have been observed in the same molecular complex. A new organic‐inorganic hybrid phase transition (OIHPT) material, (C5NH13Cl)2MnBr4 shows magnetic, dielectric and luminescence synergetic response at near room temperature.