Work

Fluorescence Behavior of Fluorenone Derivative in Chlorinated Hydrocarbons: Verification of Solvent Proticity via Fluorescence Spectroscopy

Year: 2025

Type: article

Abstract: In this study, the fluorescence (FL) behavior of a fluorenone derivative (FDMFA) in four chlorinated hydrocarbon solvents was investigated. While all four solvents have low polarities, their proticities are considerably different. Therefore, the FL properties of FDMFA could be considered to depend solely on the solvent’s proticity, with any polarity effects being insignificant. The hydrogen bond donor acidity was used as a measure of proticity, with higher values representing greater FL quenching due to vibronic coupling. The hydrogen bonding between FDMFA and the solvents could be thermodynamically controlled; thus, the FL emission was substantially enhanced during the heating process and quenched again during the cooling process. This change occurred reversibly and repeatedly. Because chlorinated hydrocarbon solvents are widely used for reaction and cleaning purposes in industrial applications, the findings of this study will be helpful in ensuring that such solvents are appropriately handled.

Source: Photochem

DOI: 10.3390/photochem5040037

Authors: Jineun Lee, Toshikazu Sakaguchi, Giseop Kwak

Institutions: Kyungpook National University, University of Fukui

Language: English

Topic: Photochemistry and Electron Transfer Studies

Subfield: Physical and Theoretical Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,207

Funder: Ministry of Trade, Industry and Energy