Studies on mesoionic compounds, II. The solvent effect on the electronic absorption spectra of mesoionic 2,3-diaryl-2H-tetrazolium-5-thiolate derivatives

Autor:	A. Y. Kassim, A. M. Kiwan
Rok vydání:	1978
Předmět:	chemistry.chemical_compound Crystallography chemistry Absorption spectroscopy Organic Chemistry Mesoionic Absorption (chemistry) Solvent effects Photochemistry
Zdroj:	Journal of Heterocyclic Chemistry. 15:133-136
ISSN:	1943-5193 0022-152X
DOI:	10.1002/jhet.5570150129
Popis:	The electronic absorption spectra of 2,3-di(2-fluorophenyl)-, 2,3-di(4-fluorophenyl)-, 2,3-di-(2-chlorophenyl)-, 2,3-di(2-methylphenyl)-, 2,3-di(4-methylphenyl)- and 2,3-di(2-methoxyphenyl)-2H-tetrazolium-5-thiolates have been measured in pure and mixed solvents. They were found to exhibit three characteristic absorption bands at 480-380 nm, near 250 and near 210; the longest wavenlength band of which was assigned to an n → π* transition.
Databáze:	OpenAIRE
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