Abstract
ABOUT a year ago I reported measurements on a class of ‘polynuclear’ organic salts of iron and chromium which obeyed the law Xa(T-θ)=C with very large negative values of θ of the order -600 for the iron salts and -100 for those of chromium (Phil. Mag., 6, 481; 1928; and Phys. Rev., 32, 320; 1928). The suggestion was made that negative θ was a measure of a certain control by or coupling with neighbouring organic groups which opposed the orientation of the metallic ions considered as the elementary magnets. For these particular salts the control was imagined to be due to the electric dipole character of the organic groups.
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WELO, L. Fused Paramagnetic Salts. Nature 124, 575–576 (1929). https://doi.org/10.1038/124575a0
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DOI: https://doi.org/10.1038/124575a0
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