The 2,7‐fluorenone‐linked bis(6‐imidazo[1,5‐a]pyridinium) salt H2‐1(PF6)2 reacts with Ag2O in CH3CN to yield the [2]catenane [Ag4(1)4](PF6)4. The [2]catenane rearranges in DMF to yield two metallamacrocycles [Ag2(1)2](PF6)2. 2,7‐Fluorenone‐bridged bis‐(imidazolium) salt H2‐L(PF6)2 (L = 2a, 2b) react with Ag2O in CH3CN to yield metallamacrocycles [Ag2(L)2](PF6)2 with interplanar distances between the fluorenone rings too small for [2]catenane formation. Intra‐ and intermolecular p···p interactions between the fluorenone groups were observed by X‐ray crystallography. The strongly kinked 2,7‐fluorenone bridged bis(5‐imidazo[1,5‐a]pyridinium) salt H2‐4(PF6)2 reacts with Ag2O to yield [Ag2(4)(CN)](PF6) while the tetranuclear assembly [Ag4(4)2(CO3)](PF6)2 was obtained in the presence of K2CO3.

中文翻译：

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由二（N-杂环卡宾）配体合成金属[2]链烷、金属矩形和多核组装体


2,7-芴酮连接的双(6-咪唑并[1,5-a]吡啶鎓)盐H2-1(PF6)2与Ag2O在CH3CN中反应生成[2]链烯[Ag4(1)4]( PF6)4。 [2]链烯在 DMF 中重排，生成两个金属大环 [Ag2(1)2](PF6)2。 2,7-芴酮桥联双(咪唑鎓)盐H2-L(PF6)2 (L = 2a, 2b)与Ag2O在CH3CN中反应生成金属大环[Ag2(L)2](PF6)2，其晶面间距为芴酮环太小，无法形成[2]链烯。通过 X 射线晶体学观察芴酮基团之间的分子内和分子间 p…p 相互作用。强扭结的2,7-芴酮桥双(5-咪唑并[1,5-a]吡啶鎓)盐H2-4(PF6)2与Ag2O反应生成[Ag2(4)(CN)](PF6)，而在 K2CO3 存在下获得四核组装体 [Ag4(4)2(CO3)](PF6)2。