Self-Assembly and Host–Guest Interactions of Pd<sub>3</sub>L<sub>2</sub> Metallo-cryptophanes with Photoisomerizable Ligands
作者:Edward Britton、Richard J. Ansell、Mark J. Howard、Michaele J. Hardie
DOI:10.1021/acs.inorgchem.1c01297
日期:2021.9.6
includes a remarkable 7-fold Borromean-weave entanglement of π–π stacked layers. Trigonal bipyramidal [Pd(en)]3(Laz)2}6+ metallo-cryptophanes (en = ethylenediamine) were formed from these and a previously known pyridyl-azo-phenyl-decorated tripodal host ligand. These coordination cages dissociate at low concentrations and are less robust to photoswitching of the Laz ligands than were previously reported Ir(III)-linked
已经合成了属于环三戊四烯家族的新型光可开关吡啶基-偶氮苯基修饰的三足宿主配体 (L az ),并确定了它们的光开关行为和晶体结构。后者包括显着的 π-π 堆叠层的 7 倍 Borromean 编织纠缠。三角双锥体 [Pd(en)] 3 (L az ) 2 } 6+金属隐甲(en = 乙二胺)由这些和先前已知的吡啶基-偶氮-苯基-装饰的三足宿主配体形成。这些配位笼在低浓度下解离并且对 L az 的光开关不太稳健配体比先前报道的具有相似配体的 Ir(III) 连接的金属隐象,反映了 Pd-N 键的更大不稳定性。[Pd(en)] 3 (L az ) 2 } 6+笼都作为宿主,结合辛基硫酸根阴离子或二甲亚砜溶液中的N -[2-(二甲氨基)乙基]-1,8-萘二甲酰亚胺.