Premium
Exploring the Association of Electron‐Donating Corroles with Phthalocyanines as Electron Acceptors
Author(s) -
Platzer Benedikt,
Berionni Berna Beatrice,
Bischetti Martina,
Cicero Daniel O.,
Paolesse Roberto,
Nardis Sara,
Torres Tomás,
Guldi Dirk M.
Publication year - 2022
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202103891
Subject(s) - covalent bond , context (archaeology) , photochemistry , pyridine , chemistry , electron , fluorescence , electron transfer , absorption (acoustics) , charge (physics) , phthalocyanine , materials science , medicinal chemistry , physics , organic chemistry , optics , paleontology , quantum mechanics , composite material , biology
Electron‐donating corroles (Cor) were integrated with electron‐accepting phthalocyanines (Pc) to afford two different non‐covalent Cor ⋅ Pc systems. At the forefront was the coordination between a 10‐ meso ‐pyridine Cor and a ZnPc. The complexation was corroborated in a combination of NMR, absorption, and fluorescence assays, and revealed association with binding constants as high as 10 6 m −1 . Steady‐state and time‐resolved spectroscopies evidenced that regardless of exciting Cor or Pc, the charge‐separated state evolved efficiently in both cases, followed by a slow charge‐recombination to reinstate the ground state. The introduction of non‐covalent linkages between Cor and Pc induces sizeable differences in the context of light harvesting and transfer of charges when compared with covalently linked Cor‐Pc conjugates.