SPMs in Host-Guest Systems

SPMs 68 and 76 have a diameter of 1.31 nm, which is suitable for inclusion of C60, while that of 78 (1.41 nm) is nearly perfect for inclusion of C70 [75].3) The 78 D C60 and 78dC70 complexes are extremely stable, with association constants IQ of 

3) Association constants (Ka), were determined by absorption spectroscopy and Stem-Volmer constants (Ksv) by fluorescence spectroscopy. 

---