Journal
SUPRAMOLECULAR CHEMISTRY
Volume 32, Issue 1, Pages 49-55Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10610278.2019.1687896
Keywords
Pyrene; phosphaquinolinone; fluorophore; hydrogen bond dimer
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Funding
- National Science Foundation [INFEWS: CHE1607214]
- Bradshaw and Holzapfel Research Professorship in Transformational Science and Mathematics
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The pyrene moiety has been utilised in a variety of systems that exhibit either 'turn on' or 'turn off' fluorescence in response to specific analytes. Continued development of hydrogen bonding pyrene-containing scaffolds seeks to establish a wider substrate scope and utility of these hosts. Herein, we report one such example in the form of a pyrene-containing phosphaquinolinone. This molecule exhibits both strong dimerisation in the solution state and pi-pi stacking within the pyrene backbone in the solid state. Further, it shows an enhanced quantum yield (70%) and a large extinction coefficient compared to its parent framework.
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