STUDIES ON NOVEL CYCLODEXTRANS - INCLUSION OF C-60 AND C-70

Cycloisomalto-heptaose (CI-7) and cycloisomalto-octaose (CI-8) are two novel cyclodextrans. Treatment with C-60 or C-70 by kneading leads to the formation of four distinct water-soluble inclusion complexes: CI- 7/C-60 (2:1), CI-8/C-60 (2:1), CI-7/C-70 (2:1) and CI-8/C-70 (2:1). Th eir formation and structures have been examined by UV-vis spectroscopy , X-ray powder diffraction and fluorescence spectral studies. The reac tion is a reversible process.