Rigid, biconical hydrogen-bonded dimers that strongly encapsulate cationic guests in solution and the solid state.

ABSTRACT: The octol of a new rigid, tetraarylene-bridged cavitand was investigated for self-assembly behaviour in solution. ¹H and DOSY NMR spectroscopic experiments show that the cavitand readily dimerizes through an unusual seam of interdigitated hydrogen-bonds that is resistant to disruption by polar co-solvents. The well-defined cavity encapsulates small cationic guests, but not their neutral counterparts, restricting the conformation of sequestered tetraethylammonium in solution and the solid state.

SUBMITTER: Smith JN 

PROVIDER: S-EPMC8442710 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature