Co(III) sarcophagine-type cage molecules, [Co(diCLsar)]3+ or [Co(HONOsar)]3+, form either 1 : 1 or 1 : 2 host–guest inclusion complexes with mono-phosphonium cations and sodium p-sulfonatocalix[4]arene in the solid state yielding complex I [p-sulfonatocalix[4]arene·Co(diCLsar)·2benzyltriphenylphosphonium}], complex II [2p-sulfonatocalix[4]arene}·Co(diCLsar)·3tetraphenylphosphonium}] and complex III [p-sulfonatocalix[4]arene·Co(HONOsar)·tetraphenylphosphonium]. The diversity of the structural types of these multi-component systems, including the orientation of the Co(III) molecules in the cavities of the calixarenes, depends on the nature of their terminal functional groups. The secondary coordination interactions binding between the Co(III) molecules and p-sulfonatocalix[4]arene have also been investigated in water using NMR techniques.
                                    Co(III) 
硼烷型笼状分子 [Co(diCLsar)]3+ 或 [Co(HONOsar)]3+ 与单
磷阳离子和 p-
磺酸基杯[4]
芳烃钠在固态下形成 1:1 或 1:2 的主客体包合络合物,生成络合物 I [p-
磺酸基杯[4]
芳烃·Co(diCLsar)·2苄基三苯基
磷}]、络合物 II [2p-
磺酸基杯[4]
芳烃}·Co(diCLsar)·3四苯基
磷}] 和络合物 III [p-
磺酸基杯[4]
芳烃·Co(HONOsar)·四苯基
磷]。这些多组分系统的结构类型多种多样,包括 Co(III) 分子在杯
芳烃空腔中的取向,这取决于其末端官能团的性质。此外,还使用 NMR 技术研究了 Co(III) 分子与 p-
磺酸基杯[4]
芳烃在
水中的二次配位相互作用。