Reversible Mechanochromic Luminescence at Room Temperature in Cationic Platinum(II) Terpyridyl Complexes

被引：80
作者：
Han, Ali [1 ]
Du, Pingwu [1 ]
Sun, Zijun [1 ]
Wu, Haotian [1 ]
Jia, Hongxing [1 ]
Zhang, Rui [2 ]
Liang, Zhenning [2 ]
Cao, Rui [2 ]
Eisenberg, Richard [3 ]
机构：
[1] Univ Sci & Technol China, CAS Key Lab Mat Energy Convers, Dept Mat Sci & Engn, Dept Chem, Hefei 230026, Peoples R China
[2] Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China
[3] Univ Rochester, Dept Chem, Rochester, NY 14623 USA
来源：
INORGANIC CHEMISTRY | 2014年 / 53卷 / 07期
基金：
中国国家自然科学基金;
关键词：
SOLVENT-INDUCED AGGREGATION; INDUCED COLOR CHANGES; PI-PI INTERACTIONS; SPECTROSCOPIC PROPERTIES; STRUCTURAL-CHARACTERIZATION; ION-BINDING; EMISSION; HYDROGEN; PHOTOLUMINESCENT; PHOTOGENERATION;
D O I：
10.1021/ic402624u
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Reversible mechanochromic luminescence in cationic platinum(II) terpyridyl complexes is described. The complexes [Pt(Nttpy)Cl]X-2 (Nttpy = 4'-(p-nicotinamide-N-methylphenyl)-2,2':6',2 ''-terpyridine, X = PF6 (1), SbF6 (2), Cl (3), ClO4 (4), OTf (5), BF4 (6)) exhibit different colors under ambient light in the solid state, going from red to orange to yellow. All of these complexes are brightly luminescent at both room temperature and 77 K. Upon gentle grinding, the yellow complexes (4-6) turn orange and exhibit bright red luminescence. The red luminescence can be changed back to yellow by the addition of a few drops of acetonitrile to the sample. Crystallographic studies of the yellow and red forms of complex 5 suggest that the mechanochromic response is likely the result of a change in intermolecular Pt...Pt distances upon grinding.
引用
收藏
页码：3338 / 3344
页数：7
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