Photophysical characterization of a bisacridinium-diphenylporphyrin conjugate

被引：1

作者：

Ruani, Federica ^{[1
]}

Edo-Osagie, Amy ^{[2
]}

de Rouville, Henri-Pierre Jacquot ^{[2
]}

Heitz, Valerie ^{[2
]}

Ventura, Barbara ^{[1
]}

Armaroli, Nicola ^{[1
]}

机构：

[1] Ist ISOF CNR, Via P Gobetti 101, I-40129 Bologna, Italy

[2] Inst Chim Strasbourg, Lab Synth Assemblages Mol Multifonct, CNRS, UMR 7177, 4 Rue Blaise Pascal, F-67000 Strasbourg, France

来源：

JOURNAL OF PORPHYRINS AND PHTHALOCYANINES | 2023年 / 27卷 / 01期

基金：

欧盟地平线“2020”;

关键词：

diphenyl-porphyrin; N-methylacridinium; photophysics; electron transfer; energy transfer; PHOTOINDUCED ELECTRON-TRANSFER; ACRIDINIUM ION; CHARGE-SHIFT; PORPHYRIN; STATE; NANOSTRUCTURES; MOLECULES; SENSOR;

D O I：

10.1142/S1088424623500396

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A molecular conjugate made of a free-base diphenyl porphyrin chromophore (DPP) trans-linked to two N-acridinium units has been synthesized and photophysically characterized in acetonitrile. Interestingly, the emission of both fluorophores is quenched in the array at room temperature. Steady-state and time-resolved optical analysis proved that an ultrafast electron transfer from the porphyrin to the acridinium units occurs upon excitation of either the porphyrin or the acridinium moiety. On the other hand, at low temperature (77 K) the emission of the porphyrin is completely recovered, thanks to the inhibition of the electron transfer, and a photoinduced energy transfer from the acridinium to the porphyrin component is observed.

引用

页码：569 / 575

页数：7

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