Chemistry Reference
In-Depth Information
10
Tetrapyrrolic Macrocycles
with Magnesium,
Alluminum, and Zinc
in Hydrogen Peroxide
Decomposition
O. V. Nevrova, A. V. Lobanov,
and G. G. Komissarov
CONTENTS
10.1 Intoduction....................................................................................................... 121
10.2 Experimental.................................................................................................... 122
10.3 Discussion and Results .................................................................................... 123
10.4 Conclusion ....................................................................................................... 129
Keywords ................................................................................................................. 129
Acknowledgment ..................................................................................................... 129
References ................................................................................................................ 129
10.1 INTODUCTION
Activity of tetrapyrrolic macrocycles such as chlorins and phthalocyanines with mag-
nesium, alluminum, and zinc in hydrogen peroxide decomposition in dark and under
visible light irradiation was studied. Using adsorption isotherms the conditions for ob-
taining photocatalytic systems with varying degrees of adsorption of phthalocyanines
were revealed. In adsorption systems, the activity of metal complexes depends on their
molecular association. The principles allow to obtain the most effective photocatalysts
were found.
In this study catalytic and photocatalytic properties of metal tetrapyrrolic com-
plexes were investigated.
Special attention was paid to the molecular association of
complexes.
Many metal complexes of tetrapyrrole macrocycles exhibit catalytic and photo-
catalytic activity in redox processes. It is known that high-spin Fe(III)-porphyrins and
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