Abstract
The signs of spin density on the carbon atoms and protons attached to them in nitroxides (nitroxyl radicals) with fixed geometry strictly alternate demonstrating unambiguously that spin propagation along the carbon chains of saturated C–C bonds occurs by a mechanism of spin polarization. Spin densities, both calculated and measured by NMR spectroscopy, exhibit convincing agreement both in signs and magnitudes.
References
1.
Buchachenko A.L.
Russian Chemical Reviews,
2006
2.
10.1016/j.mencom.2015.07.010_bib0010
Buchachenko
Mol. Cryst. Liq. Cryst.,
1989
3.
10.1016/j.mencom.2015.07.010_bib0015
Weil
Electron Paramagnetic Resonance,
2007
4.
10.1016/j.mencom.2015.07.010_bib0020
Berlini
Solution NMR of Paramagnetic Molecules,
2001
5.
10.1016/j.mencom.2015.07.010_bib0025
Friebolin
Basic One- and Two-Dimensional NMR Spectroscopy,
2010
6.
Morton J.R.
Chemical Reviews,
1964
7.
A. L. Buchachenko and A. M. Wasserman, Stabil’nye radikaly (Stable Radicals), Khimiya, Moscow, 1973 (in Russian).
8.
Kreilick R.W.
Journal of Chemical Physics,
1967
9.
10.1016/j.mencom.2015.07.010_bib0045
Briere
Bull. Soc. Chim. Fr,
1970
10.
10.1016/j.mencom.2015.07.010_bib0050
Espie
Bull. Soc. Chim. Fr.,
1971
11.
10.1016/j.mencom.2015.07.010_bib0055
Morat
Bull. Soc. Chim. Fr.,
1971
12.
Kopf P.W., Kreilick R.W., Boocock D.G., Ullman E.F.
Journal of the American Chemical Society,
1970
13.
Sysoeva N.A., Sheichenko V.I., Buchachenko A.L.
Journal of Structural Chemistry,
1968
14.
Barone V., Cimino P., Stendardo E.
Journal of Chemical Theory and Computation,
2008
15.
Schäfer A., Huber C., Ahlrichs R.
Journal of Chemical Physics,
1994
16.
Chumakova N.A., Pergushov V.I.
Mendeleev Communications,
2014
17.
Sinnecker S., Rajendran A., Klamt A., Diedenhofen M., Neese F.
Journal of Physical Chemistry A,
2006
18.
Handbook of Chemistry and Physics, 33rd edn., ed. C. D. Hodgman, Chemical Rubber Publishing Company, Cleveland, 1951, p. 2111.
19.
McConnell H.M.
Journal of Chemical Physics,
1963
20.
A. L. Buchachenko, Sov. J. Chem. Phys., 1984, 3, 1 (Khim. Fiz., 1984, 3, 3).
21.
Palacio F.
Chemical Communications,
2014
22.
Wang D., Astruc D.
Chemical Reviews,
2014