Polarized IR spectroscopy of a triplet 1, 3-biradical: the structure of a methylene-bridged 1, 8-naphthoquinodimethane

…, JH Penn, D Dohnert, J Michl

文献索引：Fisher, Jeffrey J.; Penn, John H.; Doehnert, Detlef; Michl, Josef Journal of the American Chemical Society, 1986 , vol. 108, # 7 p. 1715 - 1716

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被引用次数: 12

摘要

As a 1, 8-naphthoquinodimethane, 1 belongs to a well-known class of non-KekulC hydrocarbon^.^-^ 1A has been prepared by UV irradiation of matrix-isolated 2A and characterized by UV-visible absorption, fluorescence, and ESR. 2-4* 6 UV-visible and ESR spectra show that UV irradiation of the cyclopropanes 2A-D in argon matrix yields the triplet biradicals 1A-D, mixed with 3 and residual 2. The IR spectra of 1A-D have now been ...