Some aspects concerning the interaction of C70 fullerene with poly(L-lactic acid) (PLLA): Fullerenes, Nanotubes and Carbon Nanostructures: Vol 0, No 0


The equilibrium fixed of the PLLA-C70 complicated was decided spectrophotometrically and located at 1084 M−1, a worth totally comparable with the equilibrium fixed of the PLLA-C60 complicated 956 M−1. In truth, each C60 and C70 share virtually the identical electron affinity and each are capable of kind charge-transfer complicated with poly(L-lactic acid) (PLLA) in dichloromethane answer. The PLLA-C70 complicated in CH2Cl2 answer reveals additionally a pronounced extrinsic or induced Cotton impact when analyzed with optical rotatory dispersion (ORD) spectroscopy suggesting a type of host-guest interplay the place the helical conformation of PLLA by binding C70 internally or externally to the helical coils, is ready to induce the optical exercise to the achiral C70.


Leave a Comment