Fluorescent homooxacalixarenes: recent applications in supramolecular systems

Paula M Marcos; Mário N Berberan-Santos

doi:10.3389/fchem.2023.1258026

Fluorescent homooxacalixarenes: recent applications in supramolecular systems

Front Chem. 2023 Oct 6:11:1258026. doi: 10.3389/fchem.2023.1258026. eCollection 2023.

Authors

Paula M Marcos^{1

2}, Mário N Berberan-Santos³

Affiliations

¹ Centro de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.
² Faculdade de Farmácia da Universidade de Lisboa, Lisboa, Portugal.
³ IBB-Institute for Bioengineering and Biosciences and Associate Laboratory for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.

Abstract

This review covers recent advances (from 2006 to date) in supramolecular systems based on fluorescent homooxacalixarenes, namely hexahomotrioxacalix[3]arenes, dihomooxacalix[4]arenes and tetrahomodioxacalix[4]arenes, focusing on fluorescence sensing using their intrinsic fluorescence (built-in mesitol-like groups) or the extrinsic fluorescence of organic fluorophores, either covalently linked to the calixarenes or forming supramolecular complexes with them. Sensing applications of ions, ion pairs and neutral molecules are discussed, as well as the potential measurement of temperature based on thermally activated delayed fluorescence.

Keywords: TADF; anions and ion pairs; explosives; fluorescence sensing; fullerene C70; homooxacalixarenes; metal cations; supramolecular systems.

Publication types

Review

Grants and funding

The author(s) declare financial support was received for the research, authorship, and/or publication of this article. Fundação para a Ciência e a Tecnologia, Projects UIDB/00100/2020, UIDB/04565/2020 and LA/P/0140/2020.