SYNTHESIS, SPECTROSCOPIC-PROPERTIES AND MAGNETIC-PROPERTIES OF THE CHARGE-TRANSFER COMPLEX BIFC.C(60)

Charge-transfer complex of C-60 with 1,1'-biferrocene(Bifc) was prepar ed. The charge-transfer property was investigated by infrared and uv/v is/nir spectroscopy. The charge-transfer process was studied in detail by electron paramagnetic resonance spectroscopy. A complex reaction b ehavior has been observed. Studies of variable temperature EPR in the solid state show g-value shift as well as with peak-width change. A re laxation with degradation process of this charge-transfer complex was proposed. Magnetic studies conducted by SQUID magnetometer show that t he magnetic behavior of these charge-transfer complexes could be descr ibed as superposition of paramagnetic and ferromagnetic components. Th e coercive forces and residual magnetizations of these complexes measu red at low temperature are discussed.