海量图书期刊资源,随时随地畅享阅读乐趣
Synthesis, structure and basicity of 1,9-bis(dimethylamino)-dibenzothiophene and 1,9-bis(dimethylamino)-dibenzoselenophene1,2)Heinz A. Staab; Matthias Höne; Claus Krieger · 1988