Figure 8.

Complete flash photolysis dataset of NmHR pH 7 and 1 M NaCl. Transient IR data (B) covering the fingerprint region from 1160–1260 cm⁻¹ and its corresponding LDM (A). UV/vis data (D) covering 300–700 nm and its corresponding LDM (C). The boxes mark spectral signatures of specific interest and their correlation with the SBS. The tilted dashed line in (C) highlights the spectral inhomogeneity of the O‐decay, suggesting two substates O₁ and O₂, similar to the sodium pumps KR2 and ErNaR. In this case, the arrow highlights the spectral narrowing of the SBS during the formation of O₁. (E) Schematic overview of the photocycle. An extended lifetime analysis, transient spectra and individual transients are provided in the Supporting Information (Figures S10, S11–S13 and Table S3).