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Issue 30, 2018
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Pt⋯Pt interaction triggered tuning of circularly polarized luminescence activity in chiral dinuclear platinum(II) complexes

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Abstract

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.

Graphical abstract: Pt⋯Pt interaction triggered tuning of circularly polarized luminescence activity in chiral dinuclear platinum(ii) complexes

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Publication details

The article was received on 03 Jun 2018, accepted on 28 Jun 2018 and first published on 05 Jul 2018


Article type: Paper
DOI: 10.1039/C8DT02277A
Citation: Dalton Trans., 2018,47, 10179-10186
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    Pt⋯Pt interaction triggered tuning of circularly polarized luminescence activity in chiral dinuclear platinum(II) complexes

    X. Zhang, L. Wang, X. Qi, D. Zhang, Q. Yang, Z. Shi, Q. Lin and T. Wu, Dalton Trans., 2018, 47, 10179
    DOI: 10.1039/C8DT02277A

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