Journal
DALTON TRANSACTIONS
Volume 47, Issue 30, Pages 10179-10186Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8dt02277a
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Funding
- National Natural Science Foundation of China [21601043]
- Natural Science Foundation of Hainan Province [217100, 217101, ZDYF2017011, ZDKJ2016022-02, 2017CXTD007]
- Grantova Agentura Ceske Republiky [16-08764Y]
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Circularly polarized luminescence (CPL) activity switched by Pt...Pt interaction is disclosed in two couples of dinuclear Pt(II) complex enantiomers. Upon varying the length of the bridging ligand, intramolecular metal-metal interaction manipulation is achieved as evidenced from crystal structures. Complex (-)-1 exhibiting strong Pt...Pt interaction displays red phosphorescence with a maximum peak at 638 nm, while complex (-)-2 exhibiting weak Pt...Pt interaction displays green phosphorescence with a maximum peak at 530 nm. The observed CPL was opposite in sign for the two complexes. TD-DFT simulations further confirmed the influence of the Pt...Pt distance on the difference in the electronic optical activities.
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