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(a) Observed emission spectra (left) of [Yb(5LIO-Me-3,2-HOPO)2] (black circles) in 1:1 (v/v) MeOH:EtOH at 77 K and fitted curve (blue) to a series of three overlapping Voigt functions (red) and (b) corresponding emission spectra (right) for [Yb(H(2,2)-Me-3,2-HOPO)] (black circles) in 1:1 (v/v) MeOH:EtOH at 77 K and fitted curve (blue) to a series of four overlapping Voigt functions (red).
