Fig. 4.
Normalized (edge step set to 1) L3-edge XANES spectra of solid Tb(OTf)3 (—), solid Tb4O7 (– –), and Tb(OTf)3 in water–EMIES (1 : 19, v/v) (⋯). The features at approximately 7533 and 7524 eV are associated with Tb4+ and Tb3+, respectively.
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