Synthesis and spectral properties of cobalt(II) and cobalt(III) tetraarylporphyrinates

• Published in: Russian journal of inorganic chemistry Vol. 58; no. 6; pp. 740 - 743
• Main Authors: Chizhova, N. V., Kumeev, R. S., Mamardashvili, N. Zh
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01-06-2013
• Subjects: Acetates; Chemistry; Chemistry and Materials Science; Chloroform; Cobalt; Hydrochloric acid; Inorganic Chemistry; Oxidation; Physical Chemistry of Solutions; Spectra; Synthesis; Valence; Phthalocyanine; Chlorophenyl; Porphyrin; Electronic Absorption Spectrum; Cobalt
• ISSN: 0036-0236; 1531-8613
• DOI: 10.1134/S0036023613060089

Reactions of 5,10,15,20-tetraphenylporphin, 5,10,15,20-tetra(4′-methoxyphenyl)porphyrin, and 5,10,15,20-tetra(4′-chlorophenyl)porphyrin with cobalt(II) acetate in dimethylformamide were studied by spectrophotometry. The corresponding cobalt(II) porphyrinates were synthesized and identified. The corresponding cobalt porphyrinates in +3 oxidation state were obtained by reaction of cobalt(II) 5,10,15,20-tetraphenylporphyrinate and cobalt(II) 5,10,15,20-tetra(4′-methoxyphenyl)porphyrinate with 2,3-dichloro-5,6-dicyano-
p
-benzoquinone in chloroform. The oxidation of cobalt(II) 5,10,15,20-tetra(4′-chlorophenyl)porphyrinate with hydrochloric acid in dimethylformamide leads to cobalt(III) porphyrinate.