title: 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, PH(2)-PcYb and PPd-PcYb, have been prepared and characterized by (1)H and (31)P NMR, mass spectrometry, and UV-vis spectroscopy. Their photophysical and photochemical properties, especially the relative singlet oxygen ((1)O(2)) quantum yields and the two-photon absorption cross-section (σ(2)), were investigated. These three newly synthesized compounds exhibited very large σ(2) values and substantial (1)O(2) quantum yields upon photo-excitation, making them potential candidates as one- and two-photon photodynamic therapeutic agents.
authors.affiliation: Faculty of Material Science & Chemistry Engineering, China University of Geosciences, Wuhan, Hubei 430074, PR China. kehanz@yahoo.cn
authors.forename: Hanzhong
authors.initials: H
authors.lastname: Ke
authors.forename: Wenbin
authors.initials: W
authors.lastname: Li
authors.forename: Tao
authors.initials: T
authors.lastname: Zhang
authors.forename: Xunjin
authors.initials: X
authors.lastname: Zhu
authors.forename: Hoi-Lam
authors.initials: HL
authors.lastname: Tam
authors.forename: Anxin
authors.initials: A
authors.lastname: Hou
authors.forename: Daniel W J
authors.initials: DW
authors.lastname: Kwong
authors.forename: Wai-Kwok
authors.initials: WK
authors.lastname: Wong
mesh_terms: D000114:Acetylene / Q000737:chemistry*; D017785:Photons; D017319:Photosensitizing Agents / Q000737:chemistry*; D011166:Porphyrins / Q000737:chemistry*; D026082:Singlet Oxygen / Q000737:chemistry*; D013057:Spectrum Analysis; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D017319:Photosensitizing Agents; D011166:Porphyrins; D026082:Singlet Oxygen; D015018:Ytterbium; D000114:Acetylene