Premium
Tuning Intramolecular Förster Resonance Energy Transfer and Activating Intramolecular Singlet Fission
Author(s) -
Lavarda Giulia,
Zirzlmeier Johannes,
Gruber Marco,
Rami Parisa R.,
Tykwinski Rik R.,
Torres Tomás,
Guldi Dirk M.
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201808652
Subject(s) - intramolecular force , singlet fission , förster resonance energy transfer , photochemistry , ultrafast laser spectroscopy , chemistry , singlet state , resonance (particle physics) , spectroscopy , fluorescence , triplet state , molecule , stereochemistry , atomic physics , excited state , physics , organic chemistry , optics , quantum mechanics
The synergy of panchromatic absorption throughout most of the visible range of the solar spectrum and intramolecular singlet fission (SF) has been realized in a series of conjugates featuring different light‐harvesting subphthalocyanines (SubPcs) and an energy accepting pentacene dimer (Pnc 2 ). At the focal point was a modular SubPc approach, which was based on decorating the SubPc core with different peripheral substituents to tailor and fine‐tune their optical properties. Transient absorption measurements assisted in corroborating that the SubPcs act as energy‐transfer antennas by means of unidirectional and quantitative intramolecular Förster resonance energy transfer (FRET) to the Pnc 2 , where an intramolecular SF affords triplet quantum yields reaching unity.