Abstract
A cyclic BODIPY array, characterized by a rigid flattened calixarene-like
conformation, acts as a photosynthetic antenna mimic. The system in question, triBODIPY, is a better antenna than the corresponding BF2-free ligand. On the basis of absorption spectral studies and supporting calculations, it is concluded that exciton coupling between the BODIPY subunits occurs readily. TriBODIPY supports a complex with Li+@C60 that bring an antenna-like light absorber into close proximity to an electronic acceptor without the need for linking spacers. As inferred from X-ray diffraction analyses of complexes between triBODIPY and 60, it is inferred that the fullerene complexes are stabilized via convex−concave donor−acceptor interactions. Steady state absorption/fluorescence, time-correlated single photon counting, and transient absorption measurements have allowed a complete characterization of the complexes in both the ground and excited states, including the host−guest recognition features, fluorescence quenching effects, and charge separation/recombination dynamics.
conformation, acts as a photosynthetic antenna mimic. The system in question, triBODIPY, is a better antenna than the corresponding BF2-free ligand. On the basis of absorption spectral studies and supporting calculations, it is concluded that exciton coupling between the BODIPY subunits occurs readily. TriBODIPY supports a complex with Li+@C60 that bring an antenna-like light absorber into close proximity to an electronic acceptor without the need for linking spacers. As inferred from X-ray diffraction analyses of complexes between triBODIPY and 60, it is inferred that the fullerene complexes are stabilized via convex−concave donor−acceptor interactions. Steady state absorption/fluorescence, time-correlated single photon counting, and transient absorption measurements have allowed a complete characterization of the complexes in both the ground and excited states, including the host−guest recognition features, fluorescence quenching effects, and charge separation/recombination dynamics.
| Original language | English |
|---|---|
| Pages (from-to) | 13950-13956 |
| Number of pages | 7 |
| Journal | Journal of the American Chemical Society |
| Volume | 139 |
| Issue number | 39 |
| DOIs | |
| Publication status | Published - 2017 Oct 4 |
Fingerprint Dive into the research topics of 'Flattened Calixarene-like Cyclic BODIPY Array: A New Photosynthetic Antenna Model'. Together they form a unique fingerprint.
Cite this
Ke, X. S., Kim, T., Lynch, V. M., Kim, D., & Sessler, J. L. (2017). Flattened Calixarene-like Cyclic BODIPY Array: A New Photosynthetic Antenna Model. Journal of the American Chemical Society, 139(39), 13950-13956. https://doi.org/10.1021/jacs.7b08611