Syntheses and properties of trimethylaminophenoxy-substituted Zn((II))-phthalocyanines |
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Authors: | Ongarora Benson G Hu Xiaoke Li Hairong Fronczek Frank R Vicente M Graça H |
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Affiliation: | Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA. |
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Abstract: | The syntheses, photophysical properties and in vitro biological behavior of a series of nine Zn((II))-phthalocyanines (ZnPcs) bearing one to eight positively-charged trimethylaminophenoxy groups are reported. All ZnPcs are highly soluble in polar organic solvents, and show fluorescence and singlet oxygen quantum yields in the ranges 0.11-0.21 and 0.16-0.47, respectively. The cytotoxicity of the ZnPcs depends on both the number of charges and their site of substitution (α vs. β) on the Pc isoindole units; the most promising for PDT application are the α-substituted di-cationic ZnPcs 6a and 17a. |
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