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. 2020 May 8;11:2311. doi: 10.1038/s41467-020-16127-6

Fig. 5. Stereoselective supramolecular copolymerization of two kinds of monomers.

Fig. 5

a Obsd.: CD spectrum of a mixture of 1∙2S and 1∙3S in dodecane ([1∙2S] = [1∙3S] = 2.0 mM) after cooling from 348 to 283 K at −1.0 K/min. Calcd.: average of the CD spectra of 1∙2S in dodecane (4.0 mM) and 1∙3S in dodecane (4.0 mM) separately measured at 283 K. b Obsd.: CD spectrum of a mixture of 1∙2S and 1∙3R in dodecane ([1∙2S] = [1∙3R] = 2.0 mM) after cooling from 348 to 283 K at −1.0 K/min. Calcd.: average of the CD spectra of 1•2S in dodecane (4.0 mM) and 1∙3R in dodecane (4.0 mM) separately measured at 283 K. c Cooling curves (from 348 to 283 K at –1.0 K/min, monitored with CD intensity at 354 nm) of a mixture of 1∙2S and 1∙3S in dodecane ([1∙2S] = [1∙3S] = 2.0 mM), 1∙2S in dodecane (4.0 mM), and 1∙3S in dodecane (4.0 mM). d Cooling curves (from 348 to 283 K at −1.0 K/min, monitored with CD intensity at 354 nm) of a mixture of 1∙2S and 1∙3R in dodecane ([1∙2S] = [1∙3R] = 2.0 mM), 1∙2S in dodecane (4.0 mM), and 1∙3R in dodecane (4.0 mM). e, f Schematics for the supramolecular polymerization of the homo-chiral (1∙2S and 1∙3S; e) and hetero-chiral (1∙2S and 1∙3R; f) mixtures. g Obsd.: CD spectrum of an equi-volume mixture of 1∙2S in dodecane (4.0 mM, before mixing) and 1∙3S in dodecane (4.0 mM, before mixing) measured 30 s after mixing at 283 K. Calcd.: average of the CD spectra of 1∙2S in dodecane (4.0 mM) and 1∙3S in dodecane (4.0 mM) separately measured at 283 K. h Differential spectrum between the mixtures of 1∙2S and 1∙3S in a and g. i Schematic for merging of the supramolecular polymers of 1∙2S and 1∙3S.