Cobalt Thiolates with Organic N,N,S-Tridentate Ligand: Conversion of Thiolate Complex to Sulfinate Complex via Sulfenate

Mononuclear cobalt(III) complex with 2-[(3-aminopropyl)amino]ethanethiol (Hapaet), [Co(apaet)2]ClO4 (1) and the sulfinate complex, [Co(apaetO2)2]ClO4 (2) were synthesized and characterized by measurements of the elemental analysis, infrared and electronic spectra (UV-vis-NIR), and temperature depend...

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Published inIOP conference series. Materials Science and Engineering Vol. 835; no. 1; pp. 12024 - 12033
Main Authors Kotera, Takanori, Fujita, Atsushi, Mikuriya, Masahiro, Yoshioka, Daisuke, Shibahara, Takashi, Nishimoto, Kichisuke, Handa, Makoto
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.04.2020
Subjects
Chelation
Chromophores
Cobalt
Conversion
Coordination compounds
Crystal structure
Crystals
Electronic spectra
Infrared analysis
Infrared spectra
Oxidation
Structural analysis
Temperature dependence
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Summary:Mononuclear cobalt(III) complex with 2-[(3-aminopropyl)amino]ethanethiol (Hapaet), [Co(apaet)2]ClO4 (1) and the sulfinate complex, [Co(apaetO2)2]ClO4 (2) were synthesized and characterized by measurements of the elemental analysis, infrared and electronic spectra (UV-vis-NIR), and temperature dependence of magnetic susceptibilities (4.5-300 K), and DFT calculations. X-Ray crystal structure analysis of 1 and 2 revealed an octahedral CoS2N4 or Co(SO2)2N4 chromophore with meridional chelation of two apaet− or apaetO2−. Conversion of 1 to the sulfinate complex 2 via the sulfenate complex was investigated by UV-vis spectra. Oxidation reaction of capsanthin with 1 was also examined.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/835/1/012024