We collected single-crystal X-ray diffraction data on a Bruker D8 Venture Duo diffractometer at 299 K and applied an absorption correction using Bruker SADABS. We then solved the structure using XPREP and the SHELX 40 intrinsic phasing algorithm. While refining the structure with the SHELXL least squares algorithm in the program OLEX2, we applied an extinction correction that improved the fit. The structure matched the known P 1 space group structure of NbSe 2 I 2 . Powder XRD was performed on a Bruker D8 Advance using crushed crystals. The result was refined by GSAS-II to verify the structure of NbSe 2 I 2 . Scanning electron microscopy was performed in a ThermoFisher Axia ChemiSEM.