Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33609
Title: Switching on the phosphorescence of pyrene by cycloplatination
Authors: Hu, J
Yip, JHK
Ma, DL
Wong, KY 
Chung, WH
Issue Date: 2009
Publisher: American Chemical Society
Source: Organometallics, 2009, v. 28, no. 1, p. 51-59 How to cite?
Journal: Organometallics 
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.
URI: http://hdl.handle.net/10397/33609
ISSN: 0276-7333
EISSN: 1520-6041
DOI: 10.1021/om800410m
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