A. Rebmann et al., SYNTHESIS, EPR SPECTROSCOPY AND VOLTAMMETRY OF A P-QUATERPHENYL BIRADICAL QUINONE/, Journal of chemical research. Synopses, (7), 1996, pp. 318-319
3,5,3 '',5 ''-Tetra-tert-butyl-p-quaterphenyl-4,4 ''-diyl-bis(oxyl) (5
a)/-quinone (5b), a novel brown copper-glittering compound of metallic
appearance, has been synthesized and investigated mainly by EPR spect
roscopy and voltammetry.