The selective formation of a homo or hetero cavitand cage composed of two molecules of tetra(4-pyridyl)-cavitand (1), tetrakis(4-cyanophenyl)-cavitand (2), or tetrakis(4-pyridylethynyl)-cavitand (3), and four molecules of Pd(dppp)(OTf)(2) (4) or Pt(dppp)(OTf)(2) (5) has been studied. A 1:1:4 mixture of 1 with more steric restriction, 2 with less coordination ability, and 4 or 5 specifically self-assembled
of a 1:2 mixture of meso‐tetrakis(4‐dodecyl‐3,5‐dihydroxyphenyl)porphyrin (1) and a bowl‐shaped tetrakis(4‐pyridylethynyl)cavitand (2) in CDCl3 or C6D6 self‐assemble quantitatively into the doubly cavitand‐capped porphyrin capsule 2⋅1⋅2 through eight ArOH⋅⋅⋅Npy hydrogen bonds. Capsule 2⋅1⋅2 possesses two cavities divided by the porphyrin ring and encapsulates two molecules of 1‐acetoxy‐3,5‐dimethoxybenzene
在CDCl 3或C 6 D 6中,内消旋四(4-十二烷基-3,5-二羟基苯基)卟啉(1)和碗形四(4-吡啶乙炔基)cavitand(2)的1:2混合物的成分。定量自组装成的双穴状封端的卟啉胶囊2⋅1⋅2通过八个aroH的⋅⋅⋅ NPY细胞氢键。胶囊2⋅1⋅2具有两个被卟啉环隔开的腔,并以客体的形式封装了两个1-乙酰氧基-3,5-二甲氧基苯(G)分子,形成G / G @(2⋅1⋅2)。观察到显着的溶剂效应,其中C 6 D 6中与G的表观缔合常数2⋅1⋅2远大于CDCl 3中的表观缔合常数。