Reactions of hydrogen atoms with fluorene (C 13 H 10 ): Infrared spectra of 9 H -fluoren-9-yl (C 13 H 9 ) and monohydrofluorenyl (1 H -, 2 H -, 3 H -, and 4 H -C 13 H 11 ) radicals isolated in solid para -hydrogen

Key Points

• To examine the interactions of hydrogen atoms with fluorene and characterize the resulting radicals using infrared spectroscopy.
• Isolated 9H-fluoren-9-yl and various monohydrofluorenyl radicals in solid para-hydrogen.
• Performed infrared spectroscopy on the isolated radicals.
• Analyzed the spectral data to identify the structural changes in the radicals.
• Identified the presence of 9H-fluoren-9-yl and multiple monohydrofluorenyl radicals.
• Detected distinct infrared spectral features corresponding to different hydrogen-substituted fluorene structures.
• Provided insights into the structural characteristics of radicals formed by hydrogenation of fluorene.