Molecular complexes of C-60 with tetrasulfur tetranitride

Compounds C-60(S4N4)(2-x)(C6H6)(x)(1a-d) with x=0.61 (a), 1.0 (b), 1.1 (c), and 1.2 (d), in Which isomorphous replacement of S4N4 With benzene takes place, were obtained by the reaction of fullerene C-60 with tetrasulfur tetranitride in benzene. Complexes C-60.S4N4 (2) and C-60(S4N4)(2) (3) containing, no solvent were isolated from toluene. The compositions of the compounds were established by elemental and thermogravimetric analyses. The data of IR and X-ray photoelectron (XP) spectroscopies show that in the complexes studied the transfer of electron density occurs mainly from the nitrogen atoms of S4N4.