title: Photophysical and photochemical properties of a novel thiol terminated low symmetry zinc phthalocyanine complex and its gold nanoparticles conjugate.
abstract: A novel thiol functionalized zinc phthalocyanine complex (ZnPcSH) is reported in this work. This complex was conjugated to gold nanoparticles. The photophysical and photochemical properties of the complex and the conjugate were investigated. Upon conjugation a blue shift was observed from the UV-Vis spectra. The conjugate showed a decrease in the fluorescence quantum yield and lifetime. An increase in the triplet quantum yield and lifetime was observed for ZnPcSH following conjugation to gold nanoparticles. Both ZnPcSH and its conjugate with gold nanoparticles showed high singlet oxygen quantum yields with the conjugate being higher than the Pc alone.
authors: Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa.
authors: Thandekile P
authors: TP
authors: Mthethwa
authors: Sinem
authors: S
authors: Tuncel
authors: Mahmut
authors: M
authors: Durmuş
authors: Tebello
authors: T
authors: Nyokong
mesh_terms: D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry*; D054833:Isoindoles; D053768:Metal Nanoparticles / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D011789:Quantum Theory; D026082:Singlet Oxygen / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet; D013438:Sulfhydryl Compounds / Q000737:chemistry*; D017967:Zinc Compounds
chemical_list: D056831:Coordination Complexes; D007211:Indoles; D054833:Isoindoles; D009942:Organometallic Compounds; D013438:Sulfhydryl Compounds; D017967:Zinc Compounds; C052159:Zn(II)-phthalocyanine; D026082:Singlet Oxygen; D006046:Gold