Low-temperature and time-resolved absorption spectral studies on the sp-and ap-2-(9-fluorenyl) phenylnitrenes generated from 1-azatriptycene and 2-(9-fluorenyl) …

T Sugawara, N Nakashima, K Yoshihara…

Index: Sugawara, Tadashi; Nakashima, Nobuaki; Yoshihara, Keitaro; Iwamura, Hiizu Journal of the American Chemical Society, 1983 , vol. 105, # 4 p. 858 - 862

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Citation Number: 2

Abstract

Abstract: Mechanistic details of the photorearrangement of 1-azatriptycene (1) have been disclosed by absorption spectroscopic studies on the irradiation of 1 and 0-andp-(9- fluorenyl) phenyI azides (3 and 4). At 77 K, 1 developed on irradiation absorption peaks at 290, 302, and 340 nm, while 3 gave strong absorptions at 290, 302, and 314 nm, weak ones at 367 and 384 nm, and a broad band at 507 nm. By comparison with those of 4 and ...