title: Structure-Triggered High Quantum Yield Luminescence and Switchable Dielectric Properties in Manganese(II) Based Hybrid Compounds.
abstract: Two new manganese(II) based organic-inorganic hybrid compounds, C11H21Cl3MnN2 (1) and C11H22Cl4MnN2 (2), with prominent photoluminescence and dielectric properties were synthesized by solvent modulation. Compound 1 with novel trigonal bipyramidal geometry exhibits bright red luminescence with a lifetime of 2.47 ms and high quantum yield of 35.8 %. Compound 2 with tetrahedral geometry displays intense long-lived (1.54 ms) green light emission with higher quantum yield of 92.3 %, accompanied by reversible solid-state phase transition at 170 K and a distinct switchable dielectric property. The better performance of 2 results from the structure, including a discrete organic cation moiety and inorganic metal anion framework, which gives the cations large freedom of motion.
authors: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
authors: Zhong-Xia
authors: ZX
authors: Wang
authors: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
authors: Peng-Fei
authors: PF
authors: Li
authors: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
authors: Wei-Qiang
authors: WQ
authors: Liao
authors: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
authors: Yuanyuan
authors: Y
authors: Tang
authors: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
authors: Heng-Yun
authors: HY
authors: Ye
authors: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China. yizhang1980@seu.edu.cn.
authors: Yi
authors: Y
authors: Zhang
keywords: luminescence; manganese; organic-inorganic hybrid composites; phase transitions; switchable dielectric