Work

π-Stacked supramolecular contact ion pairs prohibit quenching and provide control of symmetry in fluorescent dyes

Year: 2026

Type: article

Abstract: anion complex form well-defined and tightly π-stacked contact ion pairs resulting in highly increased fluorescence quantum yield and lifetime. These effects are found to be general. Addition of cyanostar to six cationic dyes (rhodamine, cyanine, oxazine, triangulenium and styryl type chromophores) in benzene solutions and polystyrene thin films improves photophysical properties assigned to the supramolecular contact ion-pairs formed between dyes and the cyanostar-anion complex.

Source: Chemical Science

DOI: 10.1039/d6sc04162k

Authors: Laura Kacenauskaite, Andrew H. Olsson, Tumpa Sadhukhan, Krishnan Raghavachari, Amar H. Flood, Bo W. Laursen

Institutions: University of Copenhagen, Indiana University Bloomington, Indiana University

Language: English

Topic: Supramolecular Chemistry and Complexes

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: diamond

Funders: National Science Foundation, Novo Nordisk, Novo Nordisk Fonden, Division of Materials Research

Awards: G2282093042, G6749196919, DMREF: Designing Optical Materials with Small-Molecule Ionic Isolation Lattices (SMILES), G8859231044