Based on the so-called "topological degeneration" approach towards organic ferromagnets, polymeric materials with the highly persistent thermally and chemically stable polychlorinated di- and ...triphenylmethyl radicals as the magnetic components are proposed. Two magnetic models,
m
-divinylbenzene-β,β'-ylenebis-4-tetradecachlorotriphenylmethyl diradical (
3
) and
p
-divinylbenzene-β,β'-ylenebis-4-tetradecachlorotriphenylmethyl diradical (
4
) have been synthesized and their magnetic properties studied. While the thermal and chemical stabilities of their monoradical counterparts are preserved, the non-planarity of these molecules alters the energy levels of the ground and first excited states leading to very weak magnetic interactions for ferromagnetic purposes. Other diradical models with foreseeable larger magnetic interactions are proposed.
