벤조페논 유도체의 합성과 전기화학 및 분광학특성에 관한 연구

Synthesis and Electrochemical Spectroscopic Characterization of Benzophenone Derivatives

The benzophenone derivatives(4-CH₃O-4 -NO₂ and 3,4 -di-NO₂) are synthesized by the Fridel-Craft acylation and the nitration method. Electrochemical redox potentials of the benzophenone derivatives (4-CH₃O, H, 3-Cl, 3-NO₂, 4-NO₂, 4-CH₃O-4 -NO₂, 3,4 -di-NO₂) are measured by using cyclic voltammometry. In the relationship of summing Hammett value and redox potential, we find a proportional constant(ρ) that shows a good relation with an electrochemical property and a reactivity of the benzophenone derivatives. The benzophenone substituted with the electron donating groups(4-OCH₃ and 4-OCH₃-4 -NO₂) are higher the energy in the LUMO level, then increasing a band-gap energy(Eg), their Egs are obtained as a 3.94 eV and 3.59 eV, respectively.