Ganesamoorthy Thirunarayanan, IR & NMR Spectral Studies of some 7-Substituted 9H-Fluorenacyl Bromides: Assessment of Substituent Effects, Volume 14, International Letters of Chemistry, Physics and Astronomy (Volume 14)
https://www.scipress.com/ILCPA.14.152
Abstract:
    A series of some 2-bromo-1-(2-substituted 9H-fluorene-7-yl)ethanones have been prepared. The purities of these ethanones have been checked by their physical constants and spectroscopic data. The spectral group frequencies of these enones have been assigned and correlated with Hammett substituent constants, F and R parameters. From the results of statistical analyses, the effects of substituent have been discussed.
Keywords:
    9H-Fluorenacyl Bromides, Correlation Analysis, Hammett Substituent Constants, IR Spectra, NMR Spectra