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https://doi.org/10.1021/ma060510z
DC Field | Value | |
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dc.title | Effect of transannular π-π interaction on emission spectral shift and fluorescence quenching in dithia[3.3]paracyclophane-fluorene copolymers | |
dc.contributor.author | Wang, W.-L. | |
dc.contributor.author | Xu, J. | |
dc.contributor.author | Sun, Z. | |
dc.contributor.author | Zhang, X. | |
dc.contributor.author | Lu, Y. | |
dc.contributor.author | Lai, Y.-H. | |
dc.date.accessioned | 2014-05-19T02:51:28Z | |
dc.date.available | 2014-05-19T02:51:28Z | |
dc.date.issued | 2006-10-17 | |
dc.identifier.citation | Wang, W.-L., Xu, J., Sun, Z., Zhang, X., Lu, Y., Lai, Y.-H. (2006-10-17). Effect of transannular π-π interaction on emission spectral shift and fluorescence quenching in dithia[3.3]paracyclophane-fluorene copolymers. Macromolecules 39 (21) : 7277-7285. ScholarBank@NUS Repository. https://doi.org/10.1021/ma060510z | |
dc.identifier.issn | 00249297 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/52890 | |
dc.description.abstract | A series of dithia[3.3]paracyclophane-fluorene copolymers 1a-c and 3-5 were synthesized by a palladium-catalyzed reaction between 9,9-di-n-hexylfluorene-2, 7-bis(trimethylene boronate) and the corresponding dithiacyclophane precursors. The transannular π-π interaction in the dithiaparacyclophane modified the electronic and optical properties of the copolymers significantly, resulting in emission red shifts relative to a reference polymer 2. The observed shift in la and 5 was accompanied by enhanced photoluminescence (PL) efficiency, whereas that in 1b, 1c, 3, and 4 experienced a significant to nearly complete fluorescence quenching. The quenching effect is likely to involve an electron-transfer process and could be correlated qualitatively to the reduction potential of the "external" aromatic moiety in the cyclophane unit. © 2006 American Chemical Society. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/ma060510z | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1021/ma060510z | |
dc.description.sourcetitle | Macromolecules | |
dc.description.volume | 39 | |
dc.description.issue | 21 | |
dc.description.page | 7277-7285 | |
dc.description.coden | MAMOB | |
dc.identifier.isiut | 000241106900018 | |
Appears in Collections: | Staff Publications |
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