Answers are grounded in this paper and cite their sources.
Novel fluorescent pyrido[1′,2′: 1,2]imidazo[4,5-b]pyrazine derivatives having a crown ether side-arm, 1a, b, recognise alkaline earth metal cations and thiocyanate anions coincidentally, making a function as an AND logic gate which has fluorescence quenching output.
No takes yet. Share an insight, caveat, or question.
Iwata et al. (1995) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: