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Absorption Spectra arising from the Photolysis of Lead Tetramethyl

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Abstract

IN a recent communication1, details were given of some unknown absorption features occurring during the flash photolysis of lead tetramethyl. While continuing this work, exposures have been obtained in which the most intense band at 3196 A. is apparently resolved into a series of Q-like heads. The satellite band at 3096 A. is also characterized by a central strong line-like feature and this also could be attributed to a Q head. There is no doubt that the bands 3196 A. and 3096 A. are related, since they disappear with the same life-time, which does not appear to exceed the duration of the photolysis flash. Moreover, in repeating the experiments on the flash photolysis of lead tetramethyl-d 12 an unmistakable shift of the 3096 A. band occurs. This band is considerably displaced towards the red while the 3196 A. band moves slightly towards the violet. The wave-numbers of all the features observed are given in Table 1. Fig. 1 is a microphotometer trace, which compares the spectra obtained in the photolysis of deuterated and undeuterated lead tetramethyl with the continuum produced by the source flash.

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References

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Author notes

  1. J. G. CLOUSTON

    Present address: Chemical Engineering Department, Imperial College of Science and Technology, London, S.W.7

Authors and Affiliations

  1. Department of Supply, Australia

    J. G. CLOUSTON & C. L. COOK

Authors
  1. J. G. CLOUSTON
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  2. C. L. COOK
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CLOUSTON, J., COOK, C. Absorption Spectra arising from the Photolysis of Lead Tetramethyl. Nature 179, 1240–1241 (1957). https://doi.org/10.1038/1791240b0

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