Fig. 2: Characterization of the intermediate compounds by NMR and titration of TOsRuT with Fe(II). | Communications Chemistry

Fig. 2: Characterization of the intermediate compounds by NMR and titration of TOsRuT with Fe(II).

From: Stepwise introduction of three different transition metals in metallo-supramolecular polymer for quad-color electrochromism

Fig. 2

a Comparison of the 1H NMR spectra of TOsT, TOsRuBr, and TOsRuT with peak assignments in CD2Cl2/CD3OD (1:1, v/v). Assignment of protons: b = 3′,5′; c = 3,3″; d = 4,4″; e = 5,5″; f = 6,6″. b Change in UV–vis absorption upon the stepwise addition of Fe(BF4)2 in CH3OH to TOsRuT (5 × 10−6 M in CH2Cl2/CH3OH; 1:1, v/v). c Plot of absorbance of TOsRuT at 575 nm as a function of the [Fe(BF4)2]/[TOsRuT] ratio.

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