Free radicals containing triple bonds in the substituents, tris-(p-tolanyl)methyl (I) and diphenyl-(p-phenylethynyl) phenylmethyl (II), were produced.
The EPR spectra of the radicals (I) and (II) were taken and analyzed. A weak hyperfine (0.1 Gs) interaction of the unpaired electron with the protons of the far phenyl rings was detected.
Approximately 10% of the spin density of the unpaired electron is transmitted from the triphenylmethyl rings through the triple bond.
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I. L. Kotlyarevskii and N. I. Popova, Izv. Akad. Nauk SSSR, Ser. Khim.,208 (1967).
O. Fisher and W. Hess, Ber.,38, 336 (1905).
H. O. Wirth and O. Königstein, Liebigs Ann. Chem.,634, 84 (1960).
D. B. Chesnut and G. J. Sloan, J. Chem. Phys.,33, 637 (1960).
R. D. Stephens and C. E. Castro, J. Organ. Chem.,28, 3313 (1963).
E. F. Pratt and S. P. Suskind, J. Organ. Chem.,28, 638 (1963).
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2424–2430, November, 1969.
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Popova, N.I., Skubnevskaya, G.I., Molin, Y.N. et al. Synthesis and some properties of free radicals with triple bonds. Russ Chem Bull 18, 2271–2275 (1969). https://doi.org/10.1007/BF00906493
- Free Radical
- Phenyl Ring
- Spin Density