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Nonionic omnisoluble photosensitizer reference material for the estimation of singlet oxygen quantum yield
Ist Teil von
Physical chemistry chemical physics : PCCP, 2022-03, Vol.24 (1), p.6146-6154
Ort / Verlag
England: Royal Society of Chemistry
Erscheinungsjahr
2022
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Meso
-Tetrakis-(3,4,5-tris{2-[2-(2-methoxyethoxy)ethoxy]ethoxy}phenyl)porphyrin
TEG
12
PH
2
is reported as an 'omnisoluble' reference for singlet oxygen (
1
O
2
) generation quantum yield (
Φ
SO
) estimation.
TEG
12
PH
2
is a highly soluble, nonionic compound possessing excellent
1
O
2
QY in a wide variety of common solvents, including water.
TEG
12
PH
2
was prepared on multigram scale by the 12-way
O
-alkylation of tetrakis(3,4,5-trihydroxyphenyl)porphyrin using 2-(2-(2-methoxyethoxy)ethoxy)ethyl 4-toluenesulfonate as a reaction solvent. The corresponding Zn(
ii
) complex
TEG
12
PZn
was also prepared and studied. The
1
O
2
QYs of
TEG
12
PH
2
in the different solvents studied were found to be 0.86 (acetone), 0.59 (acetonitrile), 0.66 (chloroform), 0.85 (methanol), 0.45 (toluene) and 0.51 (water).
TEG
12
PH
2
can be considered a reliable and easy to implement omnisoluble reference compound for the estimation of the
1
O
2
generating activities of new materials, especially new porphyrinic compounds.
A new omnisoluble reference material for relative estimation of singlet oxygen quantum yields of photosensitizers has been prepared and characterized.