Charge transfer in porphyrin–calixarene complexes: ultrafast kinetics, cyclic voltammetry, and DFT calculations
文献情報
Pavel Kubát, Jakub Šebera, Stanislav Záliš, Jan Langmaier, Marcel Fuciman, Tomáš Polívka, Kamil Lang
Transient absorption spectroscopy, cyclic voltammetry, and DFT calculations were used to describe charge transfer processes in a series of 5,10,15,20-tetrakis(N-methylpyridinium-n-yl) porphyrins (TMPyPn, n = 4,3,2) and TMPyPn/p-sulfonatocalix[m]arene (clxm, m = 4,6,8) complexes. Excitation of TMPyPn is accompanied by an increasing electron density at the methylpyridinium substituents in the order TMPyP2 < TMPyP3 < TMPyP4. The quenching of the excited singlet states of the complexes increases with the number of ionized phenolic groups of clxm and can be correlated with the partial transfer of the electron density from O− to the peripheral methylpyridinium substituents rather than to the porphyrin ring.
おすすめジャーナル

Kinetics and Catalysis

Organic Preparations and Procedures International

Proceedings of the National Academy of Sciences of the United States of America

Journal of Physics and Chemistry of Solids

Journal of Heterocyclic Chemistry

Israel Journal of Chemistry

Journal of Medicinal Chemistry

Journal of Organometallic Chemistry

Science

Russian Chemical Reviews
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