Structure and exchange in silicon-linked tetraradicals.
The EPR spectroscopy, crystallography, and magnetic susceptibility of tetrakis(N-oxyl-2,2,6,6-tetramethylpiperidin-4-yl)silane and tetrakis(4-N-tert-butyl-N-aminoxylphenyl)silane show that silicon acts as a weak intramolecular exchange linker for polynitroxides, although both tetraradicals show onset of inter-spin exchange at reduced temperatures.
Liao
Yi
Y
Department of Chemistry, University of Massachusetts, Amherst, MA 01003, USA.
Baskett
Martha
M
Lahti
Paul M
PM
Palacio
Fernando
F