A H2@C601H NMR probe for sensitively detecting the supramolecular interactions between a molecular tweezer and C60

Herein, we firstly utilized H 2 @C 60 to monitor the supramolecular interaction between a pH-driven resorcin[4]arene molecular tweezer and C 60 with a notable 1 H NMR chemical shift change ( ca . 0.34 ppm).