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本文测定了吸附在Al_2O_3-SiO_2催化剂表面的十一种咔唑衍生物的ESR波谱,将其与它们和Lewis酸、SbCl_5、AlCl_3相作用所形成的电荷转移络合物的ESR波谱对比,证明咔唑衍生物在Al_2O_3-SiO_2表面形成了正离子自由基。
In this paper, ESR spectra of eleven kinds of carbazole derivatives adsorbed on the surface of Al 2 O 3 -SiO 2 catalyst were measured and compared with the ESR spectra of charge-transfer complexes formed by their interaction with Lewis acids, SbCl 5 and AlCl 3, The azole derivatives formed positive ion radicals on the surface of Al 2 O 3 -SiO 2.