naphthazarine or metallaligand. Some of as‐synthesized BRs display high stability and are formed in high yields in solution. The reason is related to the length ratio of the long‐arm linker and short‐arm linker, where smaller aspect ratios of the metallarectangles promote improved stability and yields of the BRs in solution. Increasing the width of the metallaligand or pyridyl ligand hinders the formation of BRs
从
萘他扎林或
金属
配体制备了一系列基于Cp * Rh的分子Borromean环(BR)。一些合成的BR表现出很高的稳定性,并在溶液中以高收率形成。原因与长臂连接子和短臂连接子的长度比有关,其中较小的
金属矩形长径比可提高溶液中BR的稳定性和产率。
金属
配体或
吡啶基
配体的宽度增加会阻碍BR的形成并导致未占据的单体矩形,这些矩形进一步被用作N-乙酰基
咪唑与(4-(
吡啶基-4-基)苯基)
甲醇之间的酰基转移反应的催化剂。