10‐phenanthroline‐embedded sapphyrin analogue 1 (see scheme; R=COOEt, Ar=p‐tolyl) bearing meso alkylidenyl double bonds has been synthesized. Interestingly, the protonated form of 1 ([1⋅3 H]3+) exhibits singletbiradicaloid character.
酸能解决问题:合成了一种新型的带有1,10-菲咯啉嵌入的沙弗林类似物1(参见方案; R = COOEt,Ar =对甲苯基),带有中亚亚烷基双键。有趣的是,质子化形式1([ 1个⋅3H] 3+)呈现单峰biradicaloid字符。