Fluorescence resonance energy transfer in atomically precise metal nanoclusters by cocrystallization-induced spatial confinement.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 38914548.
- Also identified by DOI 10.1038/s41467-024-49735-7 and PMC identifier 11196639.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Understanding the fluorescence resonance energy transfer (FRET) of metal nanoparticles at the atomic level has long been a challenge due to the lack of accurate systems with definite distance and orientation of molecules. Here we present the realization of achieving FRET between two atomically precise copper nanoclusters through cocrystallization-induced spatial confinement. In this study, we demonstrate the establishment of FRET in a cocrystallized Cu<sub>8</sub>(p-MBT)<sub>8</sub>(PPh<sub>3</sub>)<sub>4</sub>@Cu<sub>10</sub>(p-MBT)<sub>10</sub>(PPh<sub>3</sub>)<sub>4</sub> system by exploiting the overlapping spectra between the excitation of the Cu<sub>10</sub>(p-MBT)<sub>10</sub>(PPh<sub>3</sub>)<sub>4</sub> cluster and the emission of the Cu<sub>8</sub>(p-MBT)<sub>8</sub>(PPh<sub>3</sub>)<sub>4</sub> cluster, combined with accurate control over the confined space between the two nanoclusters. Density functional theory is employed to provide deeper insights into the role of the distance and dipole orientations of molecules to illustrate the FRET procedure between two cluster molecules at the electronic structure level.