An implanted paramagnetic metallofullerene probe within a metal-organic framework

doi:10.1039/c7nr09420e

CORC > 化学研究所 > 中国科学院化学研究所

	An implanted paramagnetic metallofullerene probe within a metal-organic framework
	Meng, Haibing 1,2; Zhao, Chong 1,2; Li, Yongjian 1,2; Nie, Mingzhe 1,2; Wang, Chunru 1; Wang, Taishan 1
刊名	NANOSCALE
	2018-02-21
卷号	10 期号:7 页码:3291-3298
ISSN号	2040-3364
DOI	10.1039/c7nr09420e
英文摘要	Paramagnetic endohedral metallofullerene can be used as a molecular probe because of its sensitive electron spin characters, one of which is to sense its surroundings. Metal-organic framework (MOF) materials have significant applications in selective adsorption owing to their porous structures. Herein, we report a Sc3C2@C-80 spin probe implanted in MOF-177 to detect the unusual host-guest interaction between the guest molecules of metallofullerene and the host pores of the MOF. Paramagnetic Sc3C2@C-80 molecules were incorporated into the pores of MOF-177 via absorption method, and there was strong p-p interaction between oleophilic metallofullerene and aromatic framework. The electron paramagnetic resonance (EPR) signals of Sc3C2@C-80 in MOF-177 exhibit anisotropic properties caused by the restricted motion of implanted Sc3C2@C-80. This unusual host-guest interaction between Sc3C2@C-80 and MOF-177 is gradually strengthened with decreasing temperature as revealed by the EPR signals. In addition, the gas desorption from the MOF-177 pores under subatmospheric pressure can weaken the host-guest interaction and lead to slightly enhanced Sc3C2@C-80 EPR signals. Furthermore, the changes in the host-guest interaction between Sc3C2@C-80 and MOF-177 at different temperatures and pressures exhibit reversibility, as shown by cycling EPR measurements. These results will inspire material design and applications of fullerene and MOF complexes.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000425348100021
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45641]
专题	中国科学院化学研究所
通讯作者	Wang, Chunru; Wang, Taishan
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Key Lab Mol Nanostruct & Nanotechnol, Inst Chem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Meng, Haibing,Zhao, Chong,Li, Yongjian,et al. An implanted paramagnetic metallofullerene probe within a metal-organic framework[J]. NANOSCALE,2018,10(7):3291-3298.
APA	Meng, Haibing,Zhao, Chong,Li, Yongjian,Nie, Mingzhe,Wang, Chunru,&Wang, Taishan.(2018).An implanted paramagnetic metallofullerene probe within a metal-organic framework.NANOSCALE,10(7),3291-3298.
MLA	Meng, Haibing,et al."An implanted paramagnetic metallofullerene probe within a metal-organic framework".NANOSCALE 10.7(2018):3291-3298.