椅式构象

设计、合成十四种含有椅式构象六元环的咔唑衍生物和三苯胺衍生物。

And come up with the design ideas for the dissertation based on these . ( 2 ) Successfully synthesized fourteen compounds containing six-member ring structure in a chair conformation of carbazole and triphenylamine derivatives .

其中六元环分别呈现微扭曲的椅式构象、严重扭曲的椅式构象及半椅式构象；

The six-membered rings exhibit slightly distorted chair , extremely distorted chair and half-chair conformation respectively , and the five-membered ring exhibits an envelope conformation .