Expanding the knowledge about an old friend of us: aminoindanol urea derivative

This is a new joint paper with our friend Prof. Dr. David Díaz Díaz (Universität Regensburg) and his collaborators, which delves into the properties and applications of aminoindanol urea derivative: a fascinating molecule that has been already more than 10 years present in our research devoted to the organocatalysis .

Two years ago a comprehensive study about its capacity of forming supramolecular gels was accomplished (Chem. Eur. J. 2014, 20, 10720-10731). Now, its ability to selectively recognize fluoride anion among other halides, has just been published. This article is part of the special issue: “Colorimetric and Fluorescent Sensor“.

Congratulations and thank you very much!

Fluoride anion recognition by a multifunctional urea derivative: An experimental and theoretical study. Schiller , J.; Pérez-Ruiz , R.; Sampedro, D.; Marqués-López, E.; Herrera, R. P.; Díaz Díaz, D. Sensors 2016, 16(5), 658. DOI: 10.3390/s16050658.

Abstract. In this worksensors-16-00658-ag we demonstrate the ability of a multifaceted N,N′-disubstituted urea to selectively recognize fluoride anion (F) among other halides. This additional function is now added to its already reported organocatalytic and organogelator properties. The signaling mechanism relies on the formation of a charge-transfer (CT) complex between the urea-based sensor and F in the ground state with a high association constant as demonstrated by absorption and fluorescence spectroscopy. The nature of the hydrogen bonding interaction between the sensor and F was established by 1H-NMR studies and theoretical calculations. Moreover, the recovery of the sensor was achieved by addition of methanol.

Key words. fluoride; anion recognition; sensor; N,N′-disubstituted urea; charge-transfer complex; association constant; absorption spectroscopy; fluorescence spectroscopy

This entry was posted in Anion recognition, Application, Collaboration, Publication, Raquel P. Herrera, Research, Urea and tagged , , , , , , , , , , , , , , . Bookmark the permalink.

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