Structures of the Individual Higher Fullerene Isomers C₇₆‐D₂ and C₇₈(2)‐C_2v in Cocrystals with Ag‐ and Cu‐ Tetraphenylporphyrines

Abstract

Two co‐crystals of individual isomers of higher fullerenes C₇₆‐D₂ and C₇₈(2)‐C_2v with Ag‐ and Cu‐tetraphenylporphyrines were obtained using the temperature difference crystal growth technique and investigated by means of single crystal X‐ray analysis. The C‐C connectivity of C₇₈(2) as well as its bond ordering have been confirmed crystallographically for the first time. It was demonstrated that metalloporphyrines may serve as a universal co‐crystal agent able to orientationally fix pristine higher fullerenes in the crystal lattice.

Keywords:

• X‐ray
• single crystal structure
• higher fullerenes
• porphyrine

ACKNOWLEDGMENT

We gratefully acknowledge the generous support of the Fonds der Chemischen Industrie and thank K. Simeonov for HPLC separation and J. Nuss for collecting X‐ray data.