Dalton Transactions
Communication
chromophore and the Pt(II) center is crucial for the photo-
physical properties of the complexes. The complexes were used
as triplet photosensitizers for triplet–triplet-annihilation (TTA)
based upconversion. Our results are useful for the preparation
of Pt(II) complexes that show a strong absorption in the visible
region and long-lived triplet excited states, as well as for the appli-
cation of these complexes in photocatalysis and upconversion.
H. Guo and J. Zhao, Dalton Trans., 2011, 40, 5953–5963;
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Acknowledgements
We thank the NSFC (21073028 and 21273028), Science Foun- 10 I. E. Pomestchenko, C. R. Luman, M. Hissler, R. Ziessel
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