作者
Semyon V Dudkin, Elena A Makarova, Ludmila K Slivka, Evgeny A Lukyanets
发表日期
2014/1/1
期刊
Journal of Porphyrins and Phthalocyanines
卷号
18
期号
01n02
页码范围
107-114
出版商
World Scientific Publishing Company
简介
The synthesis and properties of new water-soluble tetra- and octacationic derivatives of meso-tetrakis(3-pyridyl)bacteriochlorin are reported. Tetracationic salt was synthesized by quaternization of the pyridine groups of starting bacteriochlorin with 1,4-dibromobutane. Octacationic salts were obtained by treating of tetracationic salt with excess of pyridine or N,N-dimethylaminoethanol. Zinc complexes of water-soluble bacteriochlorin derivatives were prepared by direct metalation of corresponding non-metal compounds with zinc acetylacetonate, unlike to neutral bacteriochlorin which forms zinc complex only by transmetalation of the corresponding cadmium complex. The new bacteriochlorins have strong absorption in red and NIR spectral region. Free-base BCs possess good stability in aqueous solutions as compared to their zinc complexes and efficiently generate singlet oxygen.
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