TY - JOUR
T1 - Differently substituted phthalocyanines
T2 - Comparison of calculated energy levels, singlet oxygen quantum yields, photo-oxidative stabilities, photocatalytic and catalytic activities
AU - Shinohara, Hiromi
AU - Tsaryova, Olga
AU - Schnurpfeil, Günter
AU - Wöhrle, Dieter
N1 - Funding Information:
The authors are thankful to Prof. Nishide (Waseda University, Japan) for his continuous interest in the work. H.S. gratefully acknowledges a grant from Hanse Institute for Advanced Study in Delmenhorst (Germany). Part of the work was supported by the Deutsche Forschungsgemeinschaft under the grant WO 237/32-3.
PY - 2006/11/15
Y1 - 2006/11/15
N2 - Zinc(II) and cobalt(II) phthalocyanines bearing different electron-donating or -withdrawing substituents were prepared. The following properties of these phthalocyanines were investigated: singlet oxygen quantum yields, photo-oxidative stabilities, photocatalytic activities (photooxidation of (S)-(-)-citronellol) and catalytic activities (oxidation of 2-mercaptoethanol). Furthermore, the positions of HOMO/LUMO energy levels of the ground state (S0), first excited singlet state (S1) and first excited triplet state (T1) were calculated. Relationships between HOMO energy levels of S0 and photodecompositions, photocatalytic activities and photo-decompositions, and catalytic activities and HOMO energy levels of S0 were found. Singlet oxygen quantum yields of the different metallophthalocyanines are around 0.55 and independent from the calculated triplet energies.
AB - Zinc(II) and cobalt(II) phthalocyanines bearing different electron-donating or -withdrawing substituents were prepared. The following properties of these phthalocyanines were investigated: singlet oxygen quantum yields, photo-oxidative stabilities, photocatalytic activities (photooxidation of (S)-(-)-citronellol) and catalytic activities (oxidation of 2-mercaptoethanol). Furthermore, the positions of HOMO/LUMO energy levels of the ground state (S0), first excited singlet state (S1) and first excited triplet state (T1) were calculated. Relationships between HOMO energy levels of S0 and photodecompositions, photocatalytic activities and photo-decompositions, and catalytic activities and HOMO energy levels of S0 were found. Singlet oxygen quantum yields of the different metallophthalocyanines are around 0.55 and independent from the calculated triplet energies.
KW - Oxidation mercaptane
KW - Photo-oxidative stability
KW - Photodecomposition
KW - Photooxidation citronellol
KW - Phthalocyanines zinc and cobalt
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U2 - 10.1016/j.jphotochem.2006.03.024
DO - 10.1016/j.jphotochem.2006.03.024
M3 - Article
AN - SCOPUS:33749529079
SN - 1010-6030
VL - 184
SP - 50
EP - 57
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
IS - 1-2
ER -