Squarilium Dyes, their Infrared and Resonance Raman Spectra and Possible Use in Redox Reactions for Solae-energy Conversion

DOI: 10.1039/f19827801847

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Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases p. 1847 - 1866 (1982)

Update date:2022-08-17

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Authors:

Forster, Martin

Hester, Ronald E.

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Article abstract of DOI:10.1039/f19827801847

Infrared and resonance Raman spectra of squarilium dyes I-VI of the type are presented and some vibrational modes of the central 4-membered ring are assignated.Methyl viologen dication (MV(2+)) is reduced photocatalytically by IV in DMSO+H2O (95/5, v/v) with a quantum yield φ of (1.8+/-0.4)E-3 at 406.7 nm, if EDTA is present.Oxidation products of MV(2+) behave similarly with φ = (4.7+/-0.6)E-2 at 457.9 nm in DMF+H2O (2/1, v/v).IV(1+)^. seems to oxidize H2O nearly reversibly.

Full text of DOI:10.1039/f19827801847

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