Issue 30, 2018
From the journal:

Dalton Transactions

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

Xiao-Peng Zhang, ORCID logo *a   Li-Li Wang,a   Xiao-Wei Qi,a   Da-Shuai Zhang,a   Qian-Ying Yang,a   Zai-Feng Shi,*a   Qiang Lina  and  Tao Wu ORCID logo *b  

* Corresponding authors

a Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, People's Republic of China
E-mail: zxp_inorganic@126.com, zaifengshi_hnnu@sina.com

b Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610 Prague 6, Czech Republic
E-mail: wu@uochb.cas.cz

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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Article information

DOI
https://doi.org/10.1039/C8DT02277A
Article type
Paper
Submitted
03 Jun 2018
Accepted
28 Jun 2018
First published
05 Jul 2018
This article is Open Access
Creative Commons BY license

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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