Evidence for Highly Selective Supramolecular Formation between Perylene/γ-CD and Pyrene/γ-CD Complexes in Water
We have studied the simultaneous complexation of pyrene and perylene with γ-cyclodextrin in water by means of electronic excitation energy transfer. We found evidence that although in the solution there are present three different pyrene/γ-cyclodextrin complexes with stoichiometries of 1:1, 1:2, and...
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| Published in | The journal of physical chemistry. B Vol. 108; no. 9; pp. 2846 - 2850 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
American Chemical Society
04.03.2004
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| Online Access | Get full text |
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| Summary: | We have studied the simultaneous complexation of pyrene and perylene with γ-cyclodextrin in water by means of electronic excitation energy transfer. We found evidence that although in the solution there are present three different pyrene/γ-cyclodextrin complexes with stoichiometries of 1:1, 1:2, and 2:2 the (perylene)1/(γ-cyclodextrin)2 complex that is formed associates exclusively with the excimer-emitting (pyrene)2/(γ-cyclodextrin)2 adduct and not at all with the others. Moreover, this effect is not observed when pyrene is replaced by some of its homologues, which also form 2:2 excimer-emitting complexes with γ-cyclodextrin. |
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| Bibliography: | ark:/67375/TPS-1C67HDZ8-V istex:024320A327E3E6262B2D07EFECEDBCC564D18B7C |
| ISSN: | 1520-6106 1520-5207 |
| DOI: | 10.1021/jp0366567 |