Patent ID: 7145032

Claim:
An e,e,e malonic acid/acetic acid tri-adduct of buckminsterfullerene of the formula C 60 (R) 3 represented by the following structure: wherein each R is independently selected from the group consisting of moieties of the formula ═CR 1 R 2 , wherein each R 1 and R 2 of said ═CR 1 R 2 moiety is independently selected from the group consisting of —H and —COOH, provided, however, that at least one R 1 or R 2 of at least one of said ═CR 1 R 2 moieties is a hydrogen, and wherein the C in each of said ═CR 1 R 2 moieties is bonded directly to two adjacent carbons of the C 60 moiety.