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Lattice Constant of Diamond and the C–C Single Bond


RECENTLY, Lonsdale1 has published a brief account of her measurements on single crystals of diamond using the divergent beam method2. At the same time, measurements were made by me on a specimen of diamond dust employing the X-ray powder method developed to a high degree of precision by Bradley and Jay3 and others. The two sets of measurements are of interest to the physicist because they provide a comparison of the accuracy obtainable by the powder method with that obtainable by Lonsdale's method; they are of interest to the chemist because they lead to the most accurate value yet of the C–C single bond in diamond.

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RILEY, D. Lattice Constant of Diamond and the C–C Single Bond. Nature 153, 587–588 (1944).

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