Abstract
In a recent paper by Brautis1, an attempt is made to relate the differences in optical rotatory power of the respective alkyl halides and the differences in atomic dimensions of the halogens. The ratio of differences in specific rotation (D line) of the 2-halogenopentanes were found to be (Br, 41.6 – 42.6, Cl): (I, 46.68 – 41.6, Br), that is, – 0.86: + 5.08. Atomic dimension differences require (Br - Cl): (I – Br) = 17.1: 21.4, and on this basis the bromide should have a larger rotation than the chloride.
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GERRBARD, W., LESSING, W. Optical Rotatory Power and Atomic Dimension. Nature 160, 467–468 (1947). https://doi.org/10.1038/160467b0
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DOI: https://doi.org/10.1038/160467b0
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