Cationic axial ligands on sulfur substituted silicon() phthalocyanines: improved hydrophilicity and exceptionally red-shifted absorption into the NIR region

Herein, we report the exceptionally red-shifted absorption of sulfur-substituted silicon( iv ) phthalocyanines upon introduction of cationic axial ligands. The Q band was red-shifted to approximately 900 nm with improved hydrophilicity by the combination of peripheral sulfur substituents and axial a...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019-06, Vol.55 (51), p.7311-7314
Main Authors: Furuyama, Taniyuki, Ishii, Takashi, Ieda, Naoya, Maeda, Hajime, Segi, Masahito, Uchiyama, Masanobu, Nakagawa, Hidehiko
Format: Article
Language:English
Subjects:
Absorption
Cations
Crystallography
Hydrophilicity
Ligands
Silicon
Substitutes
Sulfur
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Summary:Herein, we report the exceptionally red-shifted absorption of sulfur-substituted silicon( iv ) phthalocyanines upon introduction of cationic axial ligands. The Q band was red-shifted to approximately 900 nm with improved hydrophilicity by the combination of peripheral sulfur substituents and axial ammonium ligands. One such phthalocyanine exhibited remarkable photocytotoxicity upon irradiation with NIR light (∼810 nm) in live cells. Herein, we report the exceptionally red-shifted absorption of sulfur-substituted silicon( iv ) phthalocyanines upon introduction of cationic axial ligands.
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc03022k