Solid-state spectroscopic properties of dinuclear cyclometalated Pt(II) complexes with different bridging ligands and anions

被引：7
|
作者：
Yang, Qian-Ying [1 ,2 ]
Zhang, Hua-Hong [1 ,2 ]
Xu, Guo [1 ,2 ]
Diao, Zi-Xuan [1 ,2 ]
Zhou, Zong-Mei [1 ,2 ]
Zhang, Da-Shuai [1 ,2 ]
Chen, Xin-Han [3 ]
Zhang, Xiao-Peng [1 ,2 ]
Shi, Zai-Feng [1 ,2 ]
机构：
[1] Hainan Normal Univ, Coll Chem & Chem Engn, Haikou 571158, Hainan, Peoples R China
[2] Key Lab Water Pollut Treatment & Resource Reuse H, Haikou 571158, Hainan, Peoples R China
[3] Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Key Lab Biomass Based Green Fuels & Chem, Nanjing 210037, Peoples R China
来源：
INORGANICA CHIMICA ACTA | 2021年 / 515卷
基金：
中国国家自然科学基金;
关键词：
Dinuclear cyclometalated Pt(II) complexes; Crystal structures; Luminescence; Mechanochromism; Vapochromism;
D O I：
10.1016/j.ica.2020.120072
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Crystal structures of dinuclear cyclometalated Pt(II) complexes with different bridging bis(diphenylphosphino) alkane ligands and counter anions have been compared, and solid-state emissions of crystallite powders and PMMA films doped with luminescent Pt(II) complexes have been investigated. Interestingly, mechanochromic and vapochromic properties are exhibited for solids of dinuclear cyclometalated Pt(II) complex (-)-1 bridged by bis(diphenylphosphino)methane (dppm), and multiple cycles have been repeated without any detectable degradation. However, no distinct stimuli-induced chromism can be observed with the naked eyes for solids of (-)-1 with other counter anions and PMMA films. In addition, with increasing the length of the bridging diphosphine ligand, green-solids without effective intramolecular Pt<bold>Pt contacts have been obtained</bold>, and mechanochromic and vapochromic phenomena could not be detected.
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页数：8
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