Reversible Mechanical Interlocking of D‐Shaped Molecular Karabiners bearing Coordination‐Bond Loaded Gates: Route to Self‐Assembled [2]Catenanes
作者:Soumyakanta Prusty、Shobhana Krishnaswamy、Sreenivasulu Bandi、Baby Chandrika、Jingwei Luo、J. Scott McIndoe、Garry S. Hanan、Dillip Kumar Chand
DOI:10.1002/chem.201502394
日期:2015.10.19
PdII components, [Pd(L′)(NO3)2], in an equimolar ratio yielded binuclear complexes, 1 a–d of [Pd2(L′)2(L1)2](NO3)4 formulation where L′ stands for ethylenediamine (en), tetramethylethylenediamine (tmeda), 2,2′‐bipyridine (bpy), and phenanthroline (phen). The combination of 4,4′‐bipyridine, L2, with the cis‐protected PdII units is known to yield molecular squares, 2 a–d. However, 2 b–d coexist with the
1,4-亚苯基双(亚甲基)二异烟酸酯,L1与具有顺式保护作用的Pd II组分[Pd(L')(NO 3)2 ],以等摩尔比络合生成双核络合物,其中[Pd]为1 a – d 2(L')2(L1)2 ](NO 3)4配方,其中L'代表乙二胺(en),四甲基乙二胺(tmeda),2,2'-联吡啶(bpy)和菲咯啉(phen)。4,4'-联吡啶L2与顺式的结合已知受保护的Pd II单元可产生2 a - d的分子平方。但是,2 b - d与相应的分子三角形3 b - d共存。在DMSO中,当量的配体L1和L2中的每一个与两个当量的顺式保护的Pd II组分结合,形成D形杂化复合物[Pd 2(L')2(L1)(L2)](NO 3)4,4一– d。所述的两个单元d形复合物互锁,以浓度依赖性的方式,以形成相应的[2]索烃[钯2(L' )2(L1)(L2)] 2(NO 3)8,5 - d在水性条件下。大环的晶体