August, 1971] BULLETIN OF THE CHEMICAL SOCIETY or JAPAN, VOL. ... Spectra of 2,2'-, 3,3'-, and 9,9'-Diphenanthrylpoly-ynes Shuzo AKIYAMA and Masazumi NAKAGAWA Department qf Chemistry, Faculty qf ... 5) S. Akiyama and M. Nakagawa, This Bulletin, 44, 2231 (1971). ...