J. Mater. Chem., 1997, 7, 1377 Isolation of crystals of a planar nitronyl nitroxide radical: 2-phenylbenzimidazol-1-yl N,N'-dioxide (PBIDO) (Yoshio Kusaba, Masafumi Tamura, Yuko Hosokoshi, Minoru Kinoshita, Hiroshi Sawa, Reizo Katoa and Hayao Kobayashib)