Li Jia Wei, Niu Mengyuan, Feng Wei, Dong Wenke, Liu Yanjie, Yang Jingjing, Wang Chunjie, Zhang Hui, Song Wei Wu
Institute of Medicinal Development and Application for Aquatic Disease Control, Zhoukou Key Laboratory of Small Molecule Drug Development and Application, School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, People's Republic of China.
Acta Crystallogr C Struct Chem. 2024 Aug 1;80(Pt 8):412-418. doi: 10.1107/S2053229624006405. Epub 2024 Jul 12.
Controlling the optical activity of halide perovskite materials through modulation of the coordination configurations of the metal ions is important. Herein, a novel manganese-based halide, specifically diaquatetrakis(methyldiphenylphosphine oxide)manganese(II) tetrachloridomanganate(II), [Mn(CHOP)(HO)][MnCl] or [Mn(MDPPO)(HO)][MnCl] (MDPPO is methyldiphenylphosphine oxide), was synthesized through the solvothermal reaction of MnCl with the neutral molecule MDPPO. In this compound, [Mn(MDPPO)(HO)] acts as the cation, while [MnCl] serves as the anion, enabling the co-existence of tetrahedral and octahedral structures within the same system. Remarkably, the compound exhibits efficient red-light emission at 662 nm, distinct from the green-light emission typically observed in MnX-based halides. Theoretical calculations show that the red emission comes from the charge transfer from the MDPPO to the Mn of [MnCl]. This work provides a new perspective for the design and synthesis of red-light-emitting manganese-based halides with unique structures.
通过调节金属离子的配位构型来控制卤化物钙钛矿材料的光学活性很重要。在此，通过MnCl与中性分子甲基二苯基氧化膦（MDPPO）的溶剂热反应合成了一种新型锰基卤化物，即二水四（甲基二苯基氧化膦）锰（II）四氯锰酸盐（II），[Mn(CHOP)(HO)][MnCl]或[Mn(MDPPO)(HO)][MnCl]（MDPPO为甲基二苯基氧化膦）。在该化合物中，[Mn(MDPPO)(HO)]作为阳离子，而[MnCl]作为阴离子，使得在同一体系中四面体和八面体结构共存。值得注意的是，该化合物在662 nm处表现出高效的红光发射，这与基于MnX的卤化物中通常观察到的绿光发射不同。理论计算表明，红光发射来自MDPPO到[MnCl]中Mn的电荷转移。这项工作为设计和合成具有独特结构的红光发射锰基卤化物提供了新的视角。
