Ratiometric Detection of Water in Acetonitrile with 9-Hydroxybenzo[b]Quinolizinium as Fluorosolvatochromic Probe

Katy Schäfer; Heiko Ihmels

doi:10.1007/s10895-017-2107-1

Ratiometric Detection of Water in Acetonitrile with 9-Hydroxybenzo[b]Quinolizinium as Fluorosolvatochromic Probe

J Fluoresc. 2017 Jul;27(4):1221-1224. doi: 10.1007/s10895-017-2107-1. Epub 2017 May 2.

Authors

Katy Schäfer^{1

2}, Heiko Ihmels^{3

4}

Affiliations

¹ Department of Chemistry - Biology, University of Siegen, Adolf-Reichwein-Str. 2, Siegen, Germany.
² Center of Micro- and Nanochemistry and Engineering Germany, University of Siegen, Adolf-Reichwein-Str. 2, 57068, Siegen, Germany.
³ Department of Chemistry - Biology, University of Siegen, Adolf-Reichwein-Str. 2, Siegen, Germany. ihmels@chemie.uni-siegen.de.
⁴ Center of Micro- and Nanochemistry and Engineering Germany, University of Siegen, Adolf-Reichwein-Str. 2, 57068, Siegen, Germany. ihmels@chemie.uni-siegen.de.

PMID: 28466276
DOI: 10.1007/s10895-017-2107-1

Abstract

The solvatochromic 9-hydroxybenzo[b]quinolizinium ion is shown to operate as fluorescent probe for the detection of water in acetonitrile. The dual fluorescence of this photoacid and its dependence on the content of water in the medium enable the ratiometric analysis of the fluorescence data. Graphical Abstract ᅟ.

Keywords: Chemosensors; Fluorescent probes; Fluorimetric water detection.