Summary
The vapour spectrum of formyl fluoride in the range (2200÷2700) å shows about 60 non-diffuse bands. The comparison with the solution spectrum and the temperature effect allow to isolate two main progressions of the excited state, with a pass of about 1100 and 640 cm−1, assigned respectively to the carbonyl stretching and to the FCO deformation modes. The transition is probably of the singlet-singlet n-π type, with the origin at 37500 cm−1.
Riassunto
Lo spettro in vapore del fluoruro di formile nell’intervallo (2200÷2700) A consiste di circa 60 bande non diffuse. Il confronte con lo spettro in soluzione e l’effetto della temperatura consentono di isolare due progressioni principali dello stato eccitato, con passo di circa 1100 e 460 cm−1, assegnate rispettivamente al modo d’allungamento carbonilico ed a quello di deformazione FCO. La transizione è probabilmente del tipo singoletto-singoletton-π, con origine a 37500 cm−1.
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The research reported here has been sponsored in part by the Office, Chief of Research and Development, U.S. Dept. of Army, through its European Office, under contract no. DA-91-508-EUC-275.
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Foffani, A., Zanon, I., Giacomettt, G. et al. On the electronic spectrum of formyl fluoride. Nuovo Cim 16, 861–866 (1960). https://doi.org/10.1007/BF02771705
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DOI: https://doi.org/10.1007/BF02771705