Conclusions
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1.
From the refractometry, static magnetochemistry and magnetic birefringence, data (the Cotton-Mouton effect) the different effect of ammonium and trimethyl ammonium substituents on the polarizability and magnetic susceptibility of the aromatic ring was established.
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2.
In primary anilinium salts the action of the positive charge is not large and amounts to some isotropic compression of the electron shell. The positive charge of the corresponding quaternary salts induces depression both of the total and of the anisotropic magnetooptical properties.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1061–1066, May, 1988.
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Timosheva, A.P., Vul'fson, S.G., Kushnikovskii, I.A. et al. Magnetooptical properties in the anilinium series using Cotton-Mouton effect data. Russ Chem Bull 37, 926–931 (1988). https://doi.org/10.1007/BF00957062
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DOI: https://doi.org/10.1007/BF00957062