Naslov
Azafullerene C_(59)N, a stable free radical substituent in crystalline C_(60)

Autori
Fulop, Ferenc ; Rockenbauer, Antal ; Simon, Ferenc ; Pekker, Sandor ; Korecz, Laszlo ; Garaj, Slaven ; Janossy, Andras

Izvornik
Chemical Physics Letters (0009-2614) 334 (2001), 4-6; 233-237

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
C_(59)N; C_(60); Solid solution; Azafullerene; Reorientational activation energy; Intermolecular interactions

Sažetak
Solid solutions of C_(59)N azafullerene in C_(60) with concentrations of 10^(-5) to 10^(-4) were produced in large quantities in an electric gas discharge tube. C_(59)N is a stable monomeric substituent molecule in crystalline C_(60) The isotropic N-14 and C-13 hyperfine coupling constants measured by electron spin resonance (ESR) are characteristic of the extent of delocalization of the charge over the cage and are a sensitive test of electronic structure calculations. The C_(59)N reorientational activation energy measured below the face centered cubic (fcc) to simple cubic (sc) transition is 2300 K. This value is similar to that of the matrix C_(60) molecules, indicating that C_(59)N-C_(60) intermolecular interactions are weak.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

POVEZANOST RADA