Fig. 4 | Nature Communications

Fig. 4

From: Photo-generated dinuclear {Eu(II)}2 active sites for selective CO2 reduction in a photosensitizing metal-organic framework

Fig. 4

Spectroscopic evidence for effective electron transfer process. a Normalized UV–vis of Eu-Ru(phen)3-MOF and H3L in DMF. Inset: Emission spectra of Eu-Ru(phen)3-MOF and H3L (λex = 465 nm). b Normalized luminescence decay traces of Eu-Ru(phen)3-MOF and H3L over the first 50 ns (λex = 377 nm). Inset: Decay transients measured at 630 nm (λex = 465 nm). c Transient absorption spectra of Eu-Ru(phen)3-MOF and H3L at various time delays, and d corresponding kinetic traces at 604 nm

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