Eur. Phys. J. D 18, 69-75 (2002)
https://doi.org/10.1140/e10053-002-0008-5

Photophysics of C₆₀ and C₆₀⁻ in faujasite zeolites

School of Chemistry, Seoul National University, Seoul 151-742, Korea

Corresponding author: ^a djjang@plaza.snu.ac.kr

Received: 13 July 2001
Revised: 8 October 2001
Published online: 15 January 2002

Abstract

While the intercalation of C₆₀ and the formation of C in the supercages of NaX and NaY are confirmed by using ¹²⁹Xe NMR and ESR, the photophysical properties of C₆₀ and C are characterized by monitoring transient reflectance spectra and kinetics, fluorescence kinetics, and diffuse reflectance spectra. C is considerably more abundant in NaY than in NaX. This difference is explained in terms of polarity difference between two zeolites. Both C₆₀ and C have remarkably elongated excited-state lifetimes due to their collision-free environment in zeolitic nanocavities although C has much shorter lifetimes than C₆₀. C, in particular, shows intense absorption and emission due to its reduced symmetry in zeolites.