Synthesis and Acid-base Properties of Isomeric Tetrachlorooctabromo- and Tetrabromooctachlorotetraphenyl-porphyrins

被引：9

作者：

Mamardashvili, Nugzar Zh ^{[1
]}

Ivanova, Yulia B. ^{[1
]}

Chizhova, Natalya, V ^{[1
]}

机构：

[1] Russian Acad Sci, GA Krestov Inst Solut Chem, Ivanovo 153045, Russia

来源：

MACROHETEROCYCLES | 2019年 / 12卷 / 01期

关键词：

Bromination; chlorination; tetraphenylporphyrins; cobalt complexes; spectral characteristics; acid-base properties; COORDINATION; DERIVATIVES; HALOGENATION; WATER;

D O I：

10.6060/mhc180900m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reactions of Co(II)-5,10,15,20-tetra(4-bromophenyOporphyrin chlorination with excess of the thionyl chloride and Co(II)-5,10,15,20-tetra(4-chlorophenyl)porphyrin bromination with N-bromosuccinimide were investigated. Co(II)-2,3,7,8,12,13,17,18-octabromo-5,10,15,20-tetra(chlorophenyl)porphyrin and Co(H)-2,3,7,8,12,13,17,18-octachloro-5,10,15,20-tetra(4-bromophenyl)porphyrin were synthesized and identified by UV-Vis, H-1 NMR spectroscopy and mass-spectrometry. When the halogen substituted Co(II) porphyrins were treated with a chloric and sulfuric acids mixture, corresponding porphyrin-ligands were obtained. The acid-base properties of the 2,3,7,8,12,13,17,18-octabromo-5,10,15,20-tetra(4-chlorophenyl)porphyrin and 2,3,7,8, 12, 13, 17, 18-ociachloro-5, 10, 1 5, 20-tetra(4-bromophenyl) porphyrin in acetonitrile were studied. Acidity and basicity constants of the synthesized porphyrin ligands were determined and the concentration intervals for their ionized forms existence were established.

引用

页码：22 / 28

页数：7

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