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Morpholinyl Dendrimer Phthalocyanine: Synthesis, Photophysical Properties and Photoinduced Intramolecular Electron Transfer

Abstract

A novel series of morpholinyl dendrimer phthalocyanines was synthesized. Their structures were characterized by 1H NMR, IR, elemental analysis, ESI-MS as well as MALDI-TOF mass methods. The photophysical properties of these phthalocyanines were studied by UV/Vis and fluorescence spectroscopic methods. The photophysical properties of these dendrimer phthalocyanines exhibited morpholinyl units number and central ions dependence. The photoinduced intramolecular electron transfer from the morphine unites to phthalocyanine ring was evidenced by the remarkable quenched fluorescence intensity and shorten lifetime of the silicon phthalocyanine. This difference in photoinduced intramolecular electron transfer effect for axial and peripheral substitution morpholinyl dendrimer phthalocyanine was also studied. Besides, introduction of morpholinyl units on the dendrimer structure can enhance the water soluble as well as increase singlet oxygen quantum yield.

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Publication details

The article was received on 03 Jun 2018, accepted on 25 Jul 2018 and first published on 26 Jul 2018


Article type: Paper
DOI: 10.1039/C8DT02275E
Citation: Dalton Trans., 2018, Accepted Manuscript
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    Morpholinyl Dendrimer Phthalocyanine: Synthesis, Photophysical Properties and Photoinduced Intramolecular Electron Transfer

    Q. Guo, L. Chen, S. Pan, D. Ma, X. Chen, X. Liu, G. Xu, H. Yang and Y. Peng, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C8DT02275E

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