Phosphorescence of lyophilized complexes between cyclodextrins andβ-arylpropiophenones |
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| Authors: | H L Casal J C Netto-Ferreira J C Scaiano |
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| Institution: | (1) Division of Chemistry, National Research Council of Canada, K1A OR6 Ottawa, Ontario, Canada;(2) Present address: Departamento de Quimica, Universidade Federal Rural do Rio de Janeiro, CEP 23460 Rio de Janeiro, Brazil |
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| Abstract: |  -Arylpropiophenones do not phosphoresce in homogeneous solution as a result of excited state quenching by the -aryl group. In the presence of cyclodextrins the parent substrate, -phenylpropiophenone, shows readily detectable phosphorescence. The complexes show strong phosphorescence after lyophilization to dryness. The phosphorescence intensity of ring-substituted derivatives is strongly dependent upon molecular size and cavity dimensions, suggesting that the -arylpropiophenones can be used to probe these properties.Issued as NRCC-23907 |
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| Keywords: | Cyclodextrins phosphorescence  -arylpropiophenones" target="_blank">gif" alt="beta" align="MIDDLE" BORDER="0">-arylpropiophenones |
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