Pt...Pt interaction triggered tuning of circularly polarized luminescence activity in chiral dinuclear platinum(II) complexes

被引：31
|
作者：
Zhang, Xiao-Peng [1 ]
Wang, Li-Li [1 ]
Qi, Xiao-Wei [1 ]
Zhang, Da-Shuai [1 ]
Yang, Qian-Ying [1 ]
Shi, Zai-Feng [1 ]
Lin, Qiang [1 ]
Wu, Tao [2 ]
机构：
[1] Hainan Normal Univ, Coll Chem & Chem Engn, Key Lab Water Pollut Treatment & Resource Reuse H, Haikou 571158, Hainan, Peoples R China
[2] Acad Sci, Inst Organ Chem & Biochem, Flemingovo Namesti 2, Prague 16610 6, Czech Republic
来源：
DALTON TRANSACTIONS | 2018年 / 47卷 / 30期
基金：
中国国家自然科学基金;
关键词：
PI-PI INTERACTIONS; METAL; ELECTROLUMINESCENCE; EMISSION; STRANDS; CPL;
D O I：
10.1039/c8dt02277a
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
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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页码：10179 / 10186
页数：8
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