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

Kiwan A. M. | Zendy; Kassim A. Y. | Zendy

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

Author(s) -

Kiwan A. M.,

Kassim A. Y.

Publication year - 1978

Publication title -

journal of heterocyclic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.321

H-Index - 59

eISSN - 1943-5193

pISSN - 0022-152X

DOI - 10.1002/jhet.5570150129

Subject(s) - mesoionic , chemistry , absorption (acoustics) , absorption spectroscopy , solvent , spectral line , molecular electronic transition , medicinal chemistry , stereochemistry , photochemistry , analytical chemistry (journal) , organic chemistry , molecule , physics , quantum mechanics , astronomy , acoustics

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)‐2 H ‐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.

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