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Efficient Colorimetric Fluoride Anion Chemosensors With Varied Colors Based on Simple Aminobenzodifuranone Organic ?-Conjugated Dyes.

ABSTRACT: High selectivity and sensitivity detection of fluoride anions (F-) in an organic solution by the naked eye has always been a challenge. In this investigation, a simple compound based on aminobenzodifuranone (ABDF) was designed and synthesized. Deprotonation of the amino moiety caused by F- is responsible for a color change from dark blue to various colors (colorless, yellow, orange, and red) in different common organic solvents due to a blue shift over 200 nm in the UV/Vis spectrum. The color change is quite visible to the naked eye under ambient light. The detection limit for F- can reach a concentration of as low as 5.0 × 10-7 M with high selectivity, even in a solution containing multiple anions.

SUBMITTER: Deng ZF

PROVIDER: S-EPMC7175790 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Efficient Colorimetric Fluoride Anion Chemosensors With Varied Colors Based on Simple Aminobenzodifuranone Organic Π-Conjugated Dyes.

Deng Zhi Feng ZF Li Rui R Geng Jie Ting JT Zheng Meng M Li Lei Quan LQ Shi Xin X Ren Wen Qi WQ Meng Zi Yue ZY Ji Zhuo Ting ZT Hua Jing J

Frontiers in chemistry 20200415

High selectivity and sensitivity detection of fluoride anions (F-) in an organic solution by the naked eye has always been a challenge. In this investigation, a simple compound based on aminobenzodifuranone (ABDF) was designed and synthesized. Deprotonation of the amino moiety caused by F- is responsible for a color change from dark blue to various colors (colorless, yellow, orange, and red) in different common organic solvents due to a blue shift over 200 nm in the UV/Vis ...[more]

PMID: 32351932

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