Terpyridine-Functionalized NanoSiO(2) Multi-Dentate Linkers: Preparation, Characterization and Luminescent Properties of Their Metal-Organic Hybrid Materials

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	Terpyridine-Functionalized NanoSiO(2) Multi-Dentate Linkers: Preparation, Characterization and Luminescent Properties of Their Metal-Organic Hybrid Materials
	Wu, Wen-Jie 1; Wang, Jing 1; Chen, Meng 1; Qian, Dong-Jin 1; Liu, Minghua 2
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2017-02-02
卷号	121 期号:4 页码:2234-2242
英文摘要	Terpyridine- (TPy-) functionalized silica nano-linkers (nanoSiO(2)-TPy) have been prepared and used as nanoscale multidentate ligands to coordinate with the transition metal ions (Mn+ = Zn2+, Fe2+, Tb3+ and Eu3+) for producing luminescent metalated organic inorganic nano-SiO2-TPyM hybrid materials. Thermogravimetric analysis has revealed that the covalently attached organic species in the nanoSiO(2)-TPy linkers were about 10% in weight. After they were functionalized with the layers of TPy or TPyM, the as prepared nanoSiO(2)-TPy linkers and nanoSiO(2)-TPyM hybrids formed aggregates more easily due to an increase of internanoparticle interactions. The (zeta-potential of the nanoSiO(2)-TPy linkers was about 34.6 mV, which increased to 55 to 60 mV for the nanoSiO(2)-TPyM hybrids in the poly(ethylene glycol) 200 (PEG 200) solutions. Under UV radiation, the nanoSiO(2)-TPy linkers gave off an emission at about 366 nm (monomer of the linkers) in the PEG 200 solutions with the concentrations below 0.5 mg/mL, which shifted to 374 nm after formation of the nanoSiO(2)-TPyM hybrids. The excimers of the nanoSiO(2)-TPy linkers and nanoSiO(2)-TPyM hybrids can be formed in the PEG 200 solutions with concentrations over 1.0 mg/mL and in solid powders. After the excimer was formed, the energy transfer efficiency from the excited states of the nanoSiO(2)-TPy linkers to the central lanthanide ions was largely enhanced. This resulted in strong luminescent emissions from the ions between 480 and 650 nm, designated to the electron transitions D-5(4) -> F-7(n) (n = 3, 4, 5, 6) and D-5(0) -> F-7(n) (n = 0, 1, 2) of the Tb3+ and Eu3+ ions, respectively.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38055]
专题	化学研究所_胶体、界面与化学热力学实验室
作者单位	1.Fudan Univ, Dept Chem, 220 Handan Rd, Shanghai 200433, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Key Lab Colloid Interface & Chem Thermodynam, Beijing Natl Lab Mol Sci, 2 Zhongguancun Beiyijie, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wu, Wen-Jie,Wang, Jing,Chen, Meng,et al. Terpyridine-Functionalized NanoSiO(2) Multi-Dentate Linkers: Preparation, Characterization and Luminescent Properties of Their Metal-Organic Hybrid Materials[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2017,121(4):2234-2242.
APA	Wu, Wen-Jie,Wang, Jing,Chen, Meng,Qian, Dong-Jin,&Liu, Minghua.(2017).Terpyridine-Functionalized NanoSiO(2) Multi-Dentate Linkers: Preparation, Characterization and Luminescent Properties of Their Metal-Organic Hybrid Materials.JOURNAL OF PHYSICAL CHEMISTRY C,121(4),2234-2242.
MLA	Wu, Wen-Jie,et al."Terpyridine-Functionalized NanoSiO(2) Multi-Dentate Linkers: Preparation, Characterization and Luminescent Properties of Their Metal-Organic Hybrid Materials".JOURNAL OF PHYSICAL CHEMISTRY C 121.4(2017):2234-2242.