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

Summary

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.

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