POLARONS IN LINEAR-CHAINS OF FULLERENES

Polaron states in linear chains of fullerenes are studied with the use of the generalized model of Su-Shrieffer-Heeger (SSH) for the intermo lecular and intramolecular degrees of freedom. Electron charge distrib utions over the molecular surface and Jahn-Teller distortions of carbo n atoms in C-60 are calculated self-consistently for linear C-60 polym er and C-60(-) polyanion chains. A polaron band narrowing is examined. It is shown that the polymerization of C-60 molecules in phase transi tions may be caused by the cooperative Jahn-Teller effect. (C) 1996 Am erican Institute of Physics.