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Pyridinium 5-aminothiazoles: specific photophysical properties and vapochromism in halogenated solvents

机译:5-氨基噻唑吡啶鎓盐:在卤代溶剂中的特定光物理性质和气相致变色

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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.
机译:用烷基三氟甲磺酸酯或苄基碘处理吡啶基-5-氨基噻唑(1-4)可得到相应的吡啶鎓5-氨基噻唑(5-10),相对于1-4,吡啶鎓具有红移的吸收和荧光光谱。此外,通过粉末X射线衍射分析检查了5种特定于卤化溶剂的蒸气致变色性质。因此,含有5种物质的 Pmma 膜可用于检测卤代溶剂,尤其是CH 2 Cl 2 < / small>。

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