extended pi surfaces stabilize the dimer similar to velcrands, while eight hydrogen bonds act like snaps to hold the molecules together. The self-complementary array of hydrogen bonding sites were incorporated on the upper rim of a resorcinarene-based cavitand. A dramatic reorganization of shape and size of the internal cavity was manifested through changes in solvent polarity. Specifically, the equilibrium
制备了一类新颖的自折叠绒布,它们通过分子间作用力而二聚化。扩展的pi表面上的疏溶剂相互作用使二聚体类似于velcrands稳定下来,而八个氢键的作用就像是按扣,将分子固定在一起。氢键结合位点的自互补阵列结合在基于间苯二烯的cavitand的上缘上。通过改变溶剂极性可以明显改变内部腔的形状和大小。具体而言,可以在芳族溶剂(或CDCl3)和[D6]
DMSO的混合物中控制延伸表面(D2d对称)和深腔(C4v对称)之间的平衡。构象和二聚体基序的转换非常适合于非共价聚合物材料的组装。