A pyrene derivative (KB-3) was synthesized and demonstrated as a colorimetric and ratiometric chemosensor for selective detection of fluoride ion with the detection limit of 391 nM. The mechanism of fluoride ion detection is due to the complete deprotonation of NH proton in KB-3 as revealed by ¹H NMR studies. Further, the deprotonated KB-3 is demonstrated for perceptive detection of CO₂ gas down to 0.1ml. Moreover, detection of fluoride using KB-3 is explored to develop INHIBIT type logic gate at molecular level.

中文翻译：

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基于fluoride的比色化学传感器，用于检测氟离子触发的CO ₂气体

合成了derivative衍生物（KB-3），并证明它是用于比色和比例化学传感器，用于选择性检测氟离子，检测限为391 nM。¹ H NMR研究表明，氟离子检测的机理是由于KB-3中的NH质子完全去质子化。进一步地，证明了去质子化的KB-3可检测出0.1ml的CO ₂气体。此外，探索了使用KB-3检测氟化物以开发分子水平的INHIBIT型逻辑门。