S.F. Vasilevsky, E.V. Tretyakov, O.M. Usov, Yu.N. Molin, S.V. Fokin, Yu.G. Shwedenkov, V.N. Ikorskii, G.V. Romanenko, R.Z. Sagdeev, V.I. Ovcharenko.
Methods of synthesising stable 2-imidazoline nitroxides linked to a pyrazole moiety either directly or through a phenylethynylic
bridge have been developed; an unusually strong temperature dependence of μeff for 2-(1-methylpyrazolyl-5)-4,4,5,5-tetramethyl-
1-oxyl-2-imidazoline-3-oxide is observed.
Mendeleev Comm., 1998, V.8, No.6, pp.207–209