作者:Shobhana Krishnaswamy、Soumyakanta Prusty、Daniel Chartrand、Garry S. Hanan、Dillip K. Chand
DOI:10.1021/acs.cgd.0c00421
日期:2020.9.2
ligands and phen units in the macrocycles and may thus be termed conformational solvatomorphs. The molecular packing in all the structures was found to be driven by intermolecular π···π stacking interactions between the aromatic rings in their cis-protected Pd(II) units. However, because of the awkward shape of the molecules, the closest 2,2′-bpy and phen units in all the structures overlap differently
柔性吡啶附加配体(L1)与4,4'-联吡啶(L2)和顺式保护的Pd(II)单元Pd(L')(NO 3)2的组合在水中产生浓度依赖性相应的[2] catenanes [Pd 2(L')2(L1)(L2)] 2(NO 3)8及其组成的大环[Pd 2(L')2(L1)(L2)]的平衡混合物NO 3)4。该顺所用的-保护单元(L')是乙二胺(en),四甲基乙二胺(tmeda),2,2'-联吡啶(bpy)和1,10-菲咯啉(phen)。在[Pd 2(2,2'-bpy)2(L1)()的情况下,通过缓慢蒸发其CH 3 CN / H 2 O(1:1)溶液而使[2]邻苯二酚结晶可得到单晶形式。[Pd 2(phen)2(L1)(L2)] 2(NO 3)8的情况下,L 2)] 2(NO 3)8和两种伴随的结晶形式(溶剂化物)。非共价相互作用(例如N–H··O,C–H··O和C–H···π接触以及π···π堆积)促进了[2]环戊烷的形成。[Pd