Bulletin of the Chemical Society of Japan p. 512 - 517 (1980)
Update date:2022-09-26
Topics:
Otsubo, Tetsuo
Kohda, Takashi
Misumi, Soichi
A series of the title cyclophanes (m,n=2-4) were synthesized by the thermal- and photo-desulfurization methods from dithia intermediates.Their absorption and emission spectra were measured to examine the transannular electronic interaction.The absorbtion spectra of the title compounds and their TCNE complexes gave the same order of the interaction as seen in the case of double-layered system: <2.2> > <3.3> > <4.4> in neutral state and <3.3> > <2.2> > <4.4> in CT state.The emission spectra are discussed in terms of the existence of excited trimer.
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