Photochemistry and Absorption Spectrum of Acetone


IT has been generally assumed that the explanation of the diffuse absorption spectra of aldehydes and ketones in the ultra-violet is the occurrence of a process of predissociation involving the splitting of a C – H or C – C link1. Against this observation are the following observations:

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  1. 1

    G. Herzberg, Trans. Far. Soc., 27, 378; 1931: R. Mecke, ibid., 359.

  2. 2

    G. H. Damon and F. Daniels, J.A.C.S., 55, 2363; 1933.

  3. 3

    c.f. NH3 E. O. Wiig and G. B. Kistiakowsky, J.A.C.S., 54, 1806; 1932: R. O. Ogg, P. H. Leighton and F. W. Bergstrom, ibid., 56, 318; 1934.

  4. 4

    R. G. W. Norrish, Trans. Far. Soc., 30, 103; 1934.

  5. 5

    V. Henri and O. R. Howell, Proc. Roy. Soc., A, 128, 192; 1930.

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