(2,6-Dibromo-4-ethynylphenyl)(2,6-dimethyl-4-tert-butylphenyl)diazomethane was found to be stable enough to survive under Rh-complex-catalyzed polymerization conditions and underwent polymerization to give a phenylacetylene polymer having diazo functional groups intact with an average molecular weight of 86 000 (polystyrene standard). The products from irradiation of the polymer were characterized
发现 (2,6-二
溴-4-
乙炔基苯基)(2,6-二甲基-4-
叔丁基苯基)
重氮甲烷足够稳定,可以在 Rh 络合物催化聚合条件下存活,并进行聚合得到
苯乙炔聚合物重氮官能团完整,平均分子量为 86 000(聚
苯乙烯标准)。聚合物辐照的产物通过 SQUID 测量表征,这表明结合到
苯乙炔聚合物的 pi 网络中的持久性三线态卡宾单元确实充当自旋源以产生高自旋基态,尽管估计的自旋多重性没有聚合度预期的那么高。