Hysteretic Control of Near‐infrared Transparency Using a Liquescent Radical Cation
作者:Shuichi Suzuki、Daiki Yamaguchi、Yoshiaki Uchida、Takeshi Naota
DOI:10.1002/anie.202016930
日期:2021.4.6
phase transitions with no measurable degradation of the compound even under aerated conditions. During the heating and slow cooling process (0.5 K min−1), its electronic and magnetic properties were altered clearly and repeatedly changed between solid and liquid states. The liquid state was transparent to near‐IR light (940 nm), but the solid state was opaque, despite both samples exhibiting a similar
甲易液化二氢吩嗪自由基阳离子,1 +。 ⋅ NTF 2 - ,显示出急剧变化的近红外(近IR)透明度和不透明度通过与化合物的,即使在通气条件没有可测量的降解迟滞相变。在加热和缓慢冷却过程中(0.5 K min -1),其电子和磁性性质发生了明显变化,并在固态和液态之间反复变化。液态对近红外光(940 nm)是透明的,但固态是不透明的,尽管两个样品在室温下都显示出相似的绿色。此外,在快速冷却过程中(2-10 K min -1)。UV / Vis /近红外光谱和电子自旋共振光谱表明,这些剧烈变化可归因于1。+的π二聚体结构的动态解离和缔合,甚至在纯净条件下也伴随着固液相转变。