Synthesis and Structure of a<i>p</i>-Terphenoquinone and Paramagnetic Species Derived Therefrom
作者:Peter Boldt、Detlev Bruhnke、Fabina Gerson、Markus Scholz、Peter G. Jones、Friedrich Bär
DOI:10.1002/hlca.19930760430
日期:1993.6.30
3,5,3″,5″-Tetra(tert-butyl)-p-terphenoquinone (12b) was synthesized and characterized by its spectroscopic and X-ray structural data. The ground state of 12b is singlet with a strong contribution of a biradical structure. Paramagnetic derivative of 12b, such as the semiquinone radical anion (12bτ) and its O-protonated form, the phenoxy radical (18), were studied by ESR and ENDOR spectroscopy.
3,5,3”,5" -四(叔丁基)-p -terphenoquinone(12B)的合成和表征通过其光谱和X射线结构数据。12b的基态是单重态,是双自由基结构的重要组成部分。的顺磁性衍生物12b中,如半醌自由基阴离子(12B τ)和其ö -protonated形式中,所述苯氧基(18)中,通过ESR和ENDOR谱研究。