Conclusions
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1.
The dipole moments and Kerr constants of five 3-methoxy- and 3-phenoxy-l-thia-3-phosphethanes with a tetracoordinated phosphorus atom were determined.
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2.
On the basis of a graphical treatment of the data of these methods it was shown that the four-membered ring is bent, and the two-faced angle varies from 140 to 165°. The phosphoryl (or thiophosphoryl) group occupies a pseudoequatorial position; the methoxy and phenoxy radicals have a gaucheorientation.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 1964–1967, September, 1973.
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Arbuzov, B.A., Arshinova, R.P., Vereshchagin, A.N. et al. Three-dimensional structure of phosphorus-containing heterocycles Communication 3. The gauche-orientation of the alkoxy group in 3-alkoxy-1-thia-3-phosphethanes. Russ Chem Bull 22, 1913–1916 (1973). https://doi.org/10.1007/BF00929374
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DOI: https://doi.org/10.1007/BF00929374