. 2021 Apr 16;9:616815. doi: 10.3389/fchem.2021.616815

TABLE 2.

Relative fluorescence quantum yield ratios and binding constants reported for pesticide benomyl in the presence of supramolecular hosts ^a .

Host identity	K_a (M⁻¹)	Relative quantum yield ratio ^b
α-Cyclodextrin	(17 ± 3) x 10¹	1.40 ± 0.03
2-Hydroxypropyl-β-cyclodextrin	(3 ± 1) x 10¹	2.8 ± 0.4
p-Sulfonatocalix [6]arene	(2.6 ± 0.4) x 10⁵	2.00 ± 0.05

^{^a}

All results were obtained in aqueous solution at a pH of 1.0 and at 25°C.

^{^b}

Relative quantum yield ratios were calculated as the ratio of the relative quantum yield of the pesticide in the complex divided by the relative quantum yield of the free pesticide, according to Eq. 1.