Laughing about frustration: Frustrated Lewis pairs comprising a bulky tertiary phosphine and a strongly Lewis acidic ferrocenyl borane (FcB(C6F5)2) have been investigated for the colorimetric/electrochemical detection of N2O. One such system, based on tBu3P/FcB(C6F5)2, not only signals the presence of N2O, but also has the ability to differentiate between N2O and O2.
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Kelly et al. (2013) studied this question.
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