Triboluminescence and Vapor-Induced Phase Transitions in the Solids of Methyltriphenylphosphonium Tetrahalomanganate(II) Complexes
Triboluminescence and Vapor-Induced Phase Transitions in the Solids of Methyltriphenylphosphonium Tetrahalomanganate(II) Complexes
复制标题
DOI：
10.1021/ic500400y
复制
发表时间：
2014-06-16
影响因子：
4.6
通讯作者：
Muralidharan, Srinivasan
中科院分区：
文献类型：
--
作者：
Balsamy, Sujitha;Natarajan, Palani;Muralidharan, Srinivasan
首次研究了双（甲基三苯基膦）四溴锰（PMBB）和双（甲基三苯基膦）二溴二氯锰（PMBC）四卤锰（II）配合物在非质子溶剂和质子溶剂蒸气作用下的摩擦发光（TL）。详细的分析表明，PMBB和PMBC的固体经历相变取决于环境，这调节这些化合物的热释光活性。发光，粉末X-射线衍射，差示扫描量热法，和电子顺磁共振的综合结果被用来证明晶体动力学以及TL发射的PMBB和PMBC。
Triboluminescence (TL) of the methyltriphenylphosphonium tetrahalomanganate(II) complexes such as bis(methyltriphenylphosphonium) tetrabromomanganate (PMBB) and bis(methyltriphenylphosphonium) dibromodichloromanganate (PMBC) was switched ON and OFF reversibly by vapors of aprotic and protic solvents, respectively, for the first time. Detailed analyses indicate that solids of the PMBB and the PMBC undergo phase transitions depending on the environment, which regulate the TL activity of these compounds. The combined results of luminescence, powder X-ray diffraction, differential scanning calorimetry, and electron paramagnetic resonance were used to demonstrate crystal dynamism as well as the TL emission of PMBB and PMBC.