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Changing the Hydrophobic MOF Pores through Encapsulating Fullerene C60 and Metallofullerene Sc3C2@C80
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2019-03-04 , DOI: 10.1021/acs.jpcc.8b11659 Haibing Meng 1, 2 , Chong Zhao 1, 2 , Mingzhe Nie 1, 2 , Chunru Wang 1 , Taishan Wang 1
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2019-03-04 , DOI: 10.1021/acs.jpcc.8b11659 Haibing Meng 1, 2 , Chong Zhao 1, 2 , Mingzhe Nie 1, 2 , Chunru Wang 1 , Taishan Wang 1
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We report that the encapsulation of fullerene or metallofullerene can greatly change the hydrophobic property of pores for metal–organic frameworks (MOFs). The adsorption capacities for several aromatic molecules (toluene, benzene, xylene, and chlorobenzene) were raised after incorporating C60 into MOF-177. In addition, paramagnetic metallofullerene Sc3C2@C80 with an electron spin was encapsulated into the pores of two kinds of MOFs (MOF-177 and MOF-180) filling with toluene solvent. It is found that Sc3C2@C80 electron spin can sense the different pore sizes of MOFs as shown by its varied electron paramagnetic resonance signals, which are affected by the different confinement effects in space. The filling toluene solvent within MOFs plays an important role in steering the spin relaxation of Sc3C2@C80@MOFs through lubricating the motion of Sc3C2@C80 balls. These results revealed that metallofullerene Sc3C2@C80 can act as a spin probe to sensitively detect the pore environment of MOFs. Moreover, the fullerenes and metallofullerenes can act as additives to tune the oleophilic property of MOF pores, which will promote the application of this kind of complex materials as a new adsorbing and separating material.
中文翻译：
通过封装富勒烯C 60和金属富勒烯Sc 3 C 2 @C 80来改变疏水MOF孔
我们报告说，富勒烯或金属富勒烯的封装可以极大地改变金属有机骨架（MOF）的孔的疏水性。将C 60掺入MOF-177后，对几种芳族分子（甲苯，苯，二甲苯和氯苯）的吸附能力提高。此外，将具有电子自旋的顺磁性金属富勒烯Sc 3 C 2 @C 80封装在填充有甲苯溶剂的两种MOF（MOF-177和MOF-180）的孔中。发现Sc 3 C 2 @C 80电子自旋可以感应到MOF的不同孔径，如其变化的电子顺磁共振信号所示，该信号受空间中不同的约束效应的影响。MOF中的填充甲苯溶剂通过润滑Sc 3 C 2 @C 80球的运动，在控制Sc 3 C 2 @C 80 @MOF的自旋弛豫中起着重要作用。这些结果表明金属富勒烯Sc 3 C 2 @C 80可以用作自旋探针，以灵敏地检测MOF的孔环境。此外，富勒烯和金属富勒烯可以作为添加剂来调节MOF孔的亲油性，这将促进这种复合材料作为一种新的吸附和分离材料的应用。
更新日期：2019-03-05
中文翻译：
通过封装富勒烯C 60和金属富勒烯Sc 3 C 2 @C 80来改变疏水MOF孔
我们报告说，富勒烯或金属富勒烯的封装可以极大地改变金属有机骨架（MOF）的孔的疏水性。将C 60掺入MOF-177后，对几种芳族分子（甲苯，苯，二甲苯和氯苯）的吸附能力提高。此外，将具有电子自旋的顺磁性金属富勒烯Sc 3 C 2 @C 80封装在填充有甲苯溶剂的两种MOF（MOF-177和MOF-180）的孔中。发现Sc 3 C 2 @C 80电子自旋可以感应到MOF的不同孔径，如其变化的电子顺磁共振信号所示，该信号受空间中不同的约束效应的影响。MOF中的填充甲苯溶剂通过润滑Sc 3 C 2 @C 80球的运动，在控制Sc 3 C 2 @C 80 @MOF的自旋弛豫中起着重要作用。这些结果表明金属富勒烯Sc 3 C 2 @C 80可以用作自旋探针，以灵敏地检测MOF的孔环境。此外，富勒烯和金属富勒烯可以作为添加剂来调节MOF孔的亲油性，这将促进这种复合材料作为一种新的吸附和分离材料的应用。
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