Pyridinium 5-aminothiazoles: specific photophysical properties and vapochromism in halogenated solvents
Pyridinium 5-aminothiazoles: specific photophysical properties and vapochromism in halogenated solvents
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吡啶鎓 5-氨基噻唑：卤化溶剂中的特定光物理性质和汽致变色现象
DOI：
10.1039/c7ra01896g
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发表时间：
2017
期刊：
影响因子：
3.9
通讯作者：
Takahiro Sasamori and Norihiro Tokitoh
中科院分区：
文献类型：
--
作者：
Kirara Yamaguchi;Toshiaki Murai;Yuki Tsuchiya;Yohei Miwa;Shoichi Kutsumizu;Takahiro Sasamori and Norihiro Tokitoh
吡啶基-5-氨基噻唑（1 - 4）与烷基三氟甲磺酸酯或苄基碘反应，得到相应的吡啶鎓 5-氨基噻唑（5 - 10），其吸收光谱和荧光光谱相对于吡啶基-5-氨基噻唑（1 - 4）发生了红移。此外，5特定的卤代溶剂的汽相变色性能进行了研究，通过粉末X射线衍射分析。因此，含有5的PMMA膜可用于检测卤化溶剂，特别是CH2Cl2。
Treatment of pyridyl-5-aminothiazoles (1–4) with alkyl triflates or benzyl iodide afforded the corresponding pyridinium 5-aminothiazoles (5–10), which exhibited bathochromically shifted absorption and fluorescence spectra relative to those of 1–4. Moreover, the vapochromic properties of 5 specific to halogenated solvents were examined by powder X-ray diffraction analysis. Pmma films containing 5 can thus be used to detect halogenated solvents, especially CH2Cl2.