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|Title:||Switching on the phosphorescence of pyrene by cycloplatination|
|Authors:||Hu, J. |
|Citation:||Hu, J., Yip, J.H.K., Ma, D.-L., Wong, K.-Y., Chung, W.-H. (2009-01-12). Switching on the phosphorescence of pyrene by cycloplatination. Organometallics 28 (1) : 51-59. ScholarBank@NUS Repository. https://doi.org/10.1021/om800410m|
|Abstract:||1-Diphenylphosphinopyrene (1-PyP) and 1,6-bis(diphenylphosphino)pyrene (1,6-PyP) can be metalated at C5 and C10 to give cyclometalated complexes [M(L)(1-PyP-H)]+ and [M2(L)2(1,6-PyP)] 2+ (M = Pd or Pt, L = diphosphines). The π-π* transitions of the pyrenyl ring are strongly perturbed by the PPh2 groups at C1/6, while the perturbation of the metal ions at C5/10 is weak. The phosphorescence of the pyrenyl ring is strongly enhanced by the heavy atom effect of the Pt ion up to a quantum yield of 1.5 × 10-2. Direct coordination of the Pt ion to the pyrenyl ring is needed for enhancement of the phosphorescence. © 2009 American Chemical Society.|
|Appears in Collections:||Staff Publications|
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