Conclusions
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1.
The effective dipole moments of CAr -O bonds in o,o-disubstituted diphenyl ethers differ strongly in value and sign.
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2.
For 2,6-dimethyl-substituted diphenyl ethers in solutions, a conformation is realized in which the ring bearing ortho-substituent is almost orthogonal, and the ring without such substituents is almost coplanar to the plane of the COC.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 350–354, February, 1988.
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Bredikhin, A.A., Frolova, L.V. & Vereshchagin, A.N. Conformations of o,o-dimethyl-substituted diphenyl ethers in solutions based on data from electro-optical methods. Russ Chem Bull 37, 274–278 (1988). https://doi.org/10.1007/BF00957425
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DOI: https://doi.org/10.1007/BF00957425