A Novel Fluorescens Sensor from Flavone Derivative: 2-(4-Hydroxy-3-Methoxicyclohexyl)-4h-Chrom-4-on for Anions Recognition

EasyChair Preprint 2439

Abstract

A novel chemosensor compound from flavone derivative (named: FS) has been successfully synthesized. FS activity as a chemosensor was tested by dripping FS/DMSO solution 1x10¯1 M with CN¯, Cl¯, Br¯, I¯, and F¯ ions. Naked-eye observations show that there is a change in the color of the solution from clear to light brown only in solutions that are dropped with CN¯ ion. Observation under UV light λ366 nm showed that the FS/DMSO solution glowed in a solution dripped with CN¯ and F¯, indicating that FS was fluorescent. Quantitative analysis was performed to see the quantity of FS host-guest interactions with ions, in the form of LOD, kass, and stoichiometric ratios. Performed by titrating the FS/DMSO 1x10¯7 M solution with 50 μL of CN¯, F¯ and I¯ ions then measured on a UV-Vis instrument for colored solutions and fluorometry for fluorescent solutions. In the UV-Vis titration measurement, the LOD value of the complex FS-CN¯  is 1.2×10ˉ6 M and the kass is 2 × 106 M¯1, in the fluorometric titration measurement the LOD value is 3.15 × 10ˉ4 M and the kass is 1 × 105 Mˉ1.

Keyphrases: Chemosensor, Fluorescent, flavone derivative

@booklet{EasyChair:2439,
  author    = {Rahma Rahmawati and Syarifa Wahidah Al-Idrus and Baiq Fara Dwirani Sofia},
  title     = {A Novel Fluorescens Sensor from Flavone Derivative: 2-(4-Hydroxy-3-Methoxicyclohexyl)-4h-Chrom-4-on for Anions Recognition},
  howpublished = {EasyChair Preprint 2439},
  year      = {EasyChair, 2020}}