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Disiloxanes and Functionalized Silica Gels: One Route, Two Complementary Outcomes—Guanidinium and Pyridinium Ion-Exchangers

Fig 5

FT-IR spectra of M4 before and after extraction of perchlorates (superimposition).

Pure, iodide form of M4 (magenta), sample after equilibration in methanolic solution of sodium perchlorate (violet).

Fig 5

doi: https://doi.org/10.1371/journal.pone.0145680.g005