Conclusions
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1.
The unrestricted Hartree-Fock method with corrected bond lengths was used to determine the equilibrium geometrical configurations of the radicals Z-HFC=NO. and E-HFC=NO..
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2.
The difference between the energies of the diasteromeric forms of the HFC=NO. radical is ∼1.6 kcal/mole; the Z form is the more stable.
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3.
When the Z-HFC=NO. and E-HFC=NO. radicals form from the diamagnetic molecules Z-HFC=NOH and E-HFC=NOH, the length of the =N-O bond decreases ∼0.15 Å, the C=N-O angle widens ∼10°, while the geometrical configuration of the HFC=N-group changes insignificantly.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, pp. 310–314, February, 1989.
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Balakina, M.Y., Zuev, M.B. & Morozova, I.D. Calculating the geometrical parameters of iminoxy radicals using the unrestricted Hartree-Fock-Roothaan method. 2. The radicals Z-HFC=NO. and E-HFC=NO. . Russ Chem Bull 38, 263–266 (1989). https://doi.org/10.1007/BF00953610
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DOI: https://doi.org/10.1007/BF00953610