Year 2005, Month 12 (Section Full Articles, Page 2752)
Long-lived phosphorescence of arenes in complexes with cyclodextrins 2.* Room-temperature phosphorescence of ternary complexes of naphthalene and phenanthrene with β-cyclodextrin and adamantane derivatives in the presence of oxygen
V. B. Nazarov (a), V. G. Avakyan (b), E. I. Bagrii (c), T. G. Vershinnikova (a), and
M. V. Alfimov (b)
Long-lived room-temperature phosphorescence (RTP) of arene—β-cyclodextrin
(β-CD)—cage hydrocarbon complexes in the presence of oxygen was studied. Naphthalene-d8, phenanthrene, and fluorene were used as arenes and adamantane, 1,3-dimethyladamantane, diamantane, and diadamantyl were used as the cage hydrocarbons (according to PM3 quantum chemical calculations, the use of these compounds might cause the appearance of long-lived RTP). The RTP lifetime of the naphthalene-d8—β-CD—diadamantyl complex is 11.9 s at 20 °C.
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