共 50 条
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
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.
引用
收藏
页码:10179 / 10186
页数:8
相关论文