Issue 15, 2012

Acetylene bridged porphyrin–monophthalocyaninato ytterbium(iii) hybrids with strong two-photon absorption and high singlet oxygen quantum yield

Abstract

Several acetylene bridged porphyrin–monophthalocyaninato ytterbium(III) hybrids, PZn–PcYb, PH2–PcYb and PPd–PcYb, have been prepared and characterized by 1H and 31P NMR, mass spectrometry, and UV-vis spectroscopy. Their photophysical and photochemical properties, especially the relative singlet oxygen (1O2) quantum yields and the two-photon absorption cross-section (σ2), were investigated. These three newly synthesized compounds exhibited very large σ2 values and substantial 1O2 quantum yields upon photo-excitation, making them potential candidates as one- and two-photon photodynamic therapeutic agents.

Graphical abstract: Acetylene bridged porphyrin–monophthalocyaninato ytterbium(iii) hybrids with strong two-photon absorption and high singlet oxygen quantum yield

Article information

Article type
Paper
Submitted
26 Oct 2011
Accepted
16 Jan 2012
First published
22 Feb 2012

Dalton Trans., 2012,41, 4536-4543

Acetylene bridged porphyrin–monophthalocyaninato ytterbium(III) hybrids with strong two-photon absorption and high singlet oxygen quantum yield

H. Ke, W. Li, T. Zhang, X. Zhu, H. Tam, A. Hou, D. W. J. Kwong and W. Wong, Dalton Trans., 2012, 41, 4536 DOI: 10.1039/C2DT12034H

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