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Singlet molecular oxygen generation by water-soluble phthalocyanine dendrimers with different aggregation behavior

Masakazu Nishida

Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan

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Hiroaki Horiuchi

Department of Chemistry and Chemical Biology, Gunma University, Kiryu 376-8515, Japan

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Atsuya Momotake

Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan

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Yoshinobu Nishimura

Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan

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Hiroshi Hiratsuka

Department of Chemistry and Chemical Biology, Gunma University, Kiryu 376-8515, Japan

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, and

Tatsuo Arai

Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan

Corresponding author.

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https://doi.org/10.1142/S1088424611003008Cited by:19 (Source: Crossref)

Abstract

Phthalocyanines having hydrophilic or lipophilic dendrons were synthesized to investigate the efficiencies of singlet molecular oxygen (¹Δ_g) formation. The introduction of higher generation of dendrons to the central metal (Si) of phthalocyanine in vertical direction to their ring plane has resulted in the successful improvement in avoiding aggregate formation that resulted in efficient generation of ¹Δ_g even in water.

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