Ki. Priyadarsini et al., INCLUSION COMPLEX OF GAMMA-CYCLODEXTRIN-C-60 - FORMATION, CHARACTERIZATION, AND PHOTOPHYSICAL PROPERTIES IN AQUEOUS-SOLUTIONS, Journal of physical chemistry, 98(17), 1994, pp. 4756-4759
A simple method of preparing water-soluble C-60 at room temperature ha
s been developed by complexing it with gamma-cyclodextrin. By this met
hod concentrations as high as 1.0 X 10(-4) mol dm(-3) of C-60 can be s
olubilized in water. The complex is characterized by thermogravimetric
, optical absorption, and powder X-ray diffraction analysis. The optic
al absorption spectrum, extinction coefficient, and equilibrium consta
nt for a 2:1 (CD:C-60) complex of C-60 With gamma-cyclodextrin are rep
orted. With the help of picosecond and nanosecond laser photolysis tec
hniques, the triplet characteristics of the CD-C-60 complex are determ
ined.