SYNTHESIS AND CHEMISTRY OF A NEW P-N CHELATING LIGAND - (R)-6-(2'-DIPHENYLPHOSPHINO-1'-NAPHTHYL)PHENANTHRIDINE AND (S)-6-(2'-DIPHENYLPHOSPHINO-1'-NAPHTHYL)PHENANTHRIDINE - Valk, J; Claridge, T; Brown, J; Hibbs, D; Hursthouse, M (1995)