Premium
Assembling a Phthalocyanine and Perylenediimide Donor–Acceptor Hybrid through a Platinum(II) Diacetylide Linker
Author(s) -
Jiménez Ángel J.,
Sekita Michael,
Caballero Esmeralda,
Marcos M. Luisa,
RodríguezMorgade M. Salomé,
Guldi Dirk M.,
Torres Tomás
Publication year - 2013
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.201301630
Subject(s) - phthalocyanine , platinum , photochemistry , excited state , acceptor , linker , chemistry , electron donor , conjugate , electron acceptor , quantum yield , ground state , electron transfer , catalysis , fluorescence , organic chemistry , atomic physics , mathematical analysis , physics , mathematics , quantum mechanics , computer science , operating system , condensed matter physics
In a novel electron‐donor–acceptor conjugate, phthalocyanine (Pc) and perylenediimide (PDI) are connected through a trans ‐platinum(II) diacetylide linker to yield Pc‐Pt‐PDI 1 . In the ground state, the presence of Pt II disrupts the electronic communication between the two electroactive components, as revealed by UV/Vis spectroscopy and electrochemical studies. The photophysical behavior of 1 is compared with that of the corresponding Pc‐PDI electron‐donor–acceptor conjugate 2 in terms of charge separation and charge recombination. The insertion of Pt II between Pc and PDI impacts the results in a longer‐lived Pc . + /PDI . − radical ion‐pair state. In addition, the intermediately formed Pc triplet excited state is formed with higher quantum yields in 1 than in 2 .