An efficient hydrazine sensor was prepared based on the pyridomethene–BF2 complex. It exhibits a high sensitivity in aqueous solutions despite the presence of a wide variety of anions and cations. It can also be fabricated into a solid state sensor for detection of hydrazine vapor. The fluorescence response of this sensor exhibits a ratiometric character at two different wavelengths, therefore significantly enhances the reliability of measurements. The sensing mechanism is well rationalized with the aid of DFT calculations.
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Lin et al. (2013) studied this question.
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