Journal
NEW JOURNAL OF CHEMISTRY
Volume 45, Issue 33, Pages 15053-15062Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1nj01410b
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Funding
- CNRS
- China Scholarship Council (CSC)
- departmental committee CD29 of the Ligue contre le Cancer du Grand-Ouest
- departmental committee CD28 of the Ligue contre le Cancer du Grand-Ouest
- departmental committee CD35 of the Ligue contre le Cancer du Grand-Ouest
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New meso-tetrafluorenylporphyrins functionalized with various 2-ethynyl fluorenyl and/or 2-ethynyl fluorenonyl arms were synthesized, with investigation into their impact on optical properties including two-photon absorption and singlet oxygen photosensitising properties. Improved properties compared to analogues featuring non-oxidized fluorenyl terminal groups were discussed in relation to potential applications in combined 2-photon-based photodynamic therapy and imaging.
The synthesis of new meso-tetrafluorenylporphyrins peripherally functionalized with various 2-ethynyl fluorenyl and/or 2-ethynyl fluorenonyl arms is presented. The impact of these fluorenone units on their linear and nonlinear optical properties is also investigated. Thus, two-photon absorption and singlet oxygen photosensitising properties are evaluated. Improvement of these properties relative to their analogues featuring non-oxidized fluorenyl terminal groups, which make the molecules presented quite appealing for combined 2-photon-based photodynamic therapy (PDT) and imaging, is then briefly discussed.
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