Characteristic features of the phosphorescence of the complex “naphthalene-d8-β-cyclodextrin” at 77 K

It is found that the phosphorescence of naphthalene-d8 in an inclusion complex in crystalline β-cyclodextrin at 77 K differs substantially from that of frozen homogeneous solutions: The vibrational structure of the spectrum is better-resolved, the Stokes shift in the spectrum is smaller, and the lifetime is longer than the values known previously. Similar effects are observed for naphthalene-h8 and phenanthrene. Pis’ma Zh. éksp. Teor. Fiz. 65, No. 7, 507–510 (10 April 1997)