title: Absorption and fluorescence properties of aryl substituted porphyrins in different media.
abstract: Absorption and fluorescence properties of aryl substituted porphyrins, 5,10,15,20-tetra-4-oxy(aceticacid)phenylporphyrin (TAPP), 5,10,15,20-tetra-(4-phenoxyphenyl) porphyrin (TPPP), 5,10,15,20-tetra-(3-bromo-4-hydroxyphenyl) porphyrin (TBHPP), and 5,10,15,20-tetra-p-chloromethylphenyl porphyrin (CMPP) were investigated. The UV/vis absorption, fluorescence and excited spectra as the fluorescence quantum yields and fluorescence lifetimes for the compounds were measured in organic solvents (chloroform (CHCl(3)), tetrahydrofuran (THF)) and immobilized media (PVC film, sol-gel matrix). The fluorescence quantum yields of TAPP and TPPP were higher than the others. The fluorescence lifetimes of all studied porphyrin derivates were found to be fifty percent lower and their fluorescence intensities were increased fifty percent more in both of immobilized mediums, as compared to organic solvents.
authors.affiliation: Faculty of Sciences and Arts, Chemistry Department, Dokuz Eylul University, Kaynaklar Campus, 35160 Izmir, Turkey.
authors.forename: Serap Seyhan
authors.initials: SS
authors.lastname: Bozkurt
authors.forename: Melek
authors.initials: M
authors.lastname: Merdivan
authors.forename: Sevda
authors.initials: S
authors.lastname: Ayata
mesh_terms: D000042:Absorption; D015394:Molecular Structure; D044367:Phase Transition; D010777:Photochemistry; D011166:Porphyrins / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
chemical_list: D011166:Porphyrins