Skip to main content
. 2022 Feb 11;13:845. doi: 10.1038/s41467-022-28409-2

Fig. 1. Chemical structures of the samples.

Fig. 1

(a) Schematic structure of the Re-TpBpy. (b) FT-IR spectra of TpBpy, Re-TpBpy and their starting materials with the right panel showing the molecular structure of the corresponding unit, where the bonds of a: C=O, b: C–H; c: N–H; d: C–N; e: C=O; f: C=C, and g: C–N are highlighted. Source data are provided as a Source data file.