STUDY ON THE CHARGE-TRANSFER INTERACTION OF FULLERENE C-60 WITH FERROCENYLKETIMINES

Three charge - transfer complexes (CTC) eta(5) - C5H5Fe[C5H4C(CH3)=NC( 6)H(4)R - p] - eta(5)/C-60(2a R = H; 2b R = CH3; 2c R = OCH3) were for med in toluene at room temperature through the interaction between C-6 0 and three ferrocenylketimines eta(5) - C5H5Fe[C5H4C(CH3)=NC(6)H(4)R - p] - eta(5) (1a R = H; 1b R = CH3; 1c R = OCH3). The UV spectra of t hese CTC gave the evidence for their existence. The CTC formation cons tants of 2a, 2b and 2c at room temperature in toluene were determined to be 0.769mo1(-1) . dm(3), 0.928mol(-1) . dm(3) and 2.353 mol(-1) . d m(3), respectively using the Benesi - Hildebrand equation. These const ants are much higher that those of CTC derived from organic amines and C-60, which strongly supports the double charge - transfer interactio n of C-60 With both the ferrocenyl and the imine moieties in ferroceny lketimine.