Premium
Efficient Photoinduced Intramolecular Energy Transfer in an Oblique Bis‐Porphyrin System
Author(s) -
ChardonNoblat Sylvie,
Sauvage JeanPierre,
Mathis Paul
Publication year - 1989
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198905931
Subject(s) - porphyrin , moiety , intramolecular force , photochemistry , excitation , electron transfer , chemistry , zinc , energy transfer , electrochemistry , stereochemistry , chemical physics , electrode , organic chemistry , electrical engineering , engineering
Despite a distance of ca. 13 Å between the centers , after photochemical excitation the energy of readily accessible 1 is very rapidly transferred from the zinc‐containing porphyrin moiety to the metal‐free porphyrin moiety. Electrochemical and emission spectroscopic data give a driving force of 0.17 eV for this energy transfer. A photochemically‐induced electron transfer (driving force 0.07 eV), on the other hand, is not observed M 1 = Zn,M 2 = 2H; R = t Bu 2 C 6 H 3 .