期刊
ACS APPLIED MATERIALS & INTERFACES
卷 14, 期 1, 页码 1397-1403出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c19141
关键词
metal-organic frameworks (MOFs); self-assembly Ni-MOFs; fullerenes encapsulation; C-60/C-70 separation; energy transfer; polarized emission
资金
- University of Fribourg
- Swiss National Science Foundation SNSF
- NCCR Bioinspired Materials
- Fribourg Centre for Nanomaterials FriMat
- SNSF [P1FRP2_178150]
- ANR [ANR-17-CE24-0033]
- IDEX University of Bordeaux
- Swiss National Science Foundation (SNF) [P1FRP2_178150] Funding Source: Swiss National Science Foundation (SNF)
- Agence Nationale de la Recherche (ANR) [ANR-17-CE24-0033] Funding Source: Agence Nationale de la Recherche (ANR)
An anthracene-based Ni-MOF material capable of adsorbing C60 and C70 was reported, with fullerenes showing homogeneous distribution in single crystals under confocal fluorescence and Raman microscopy. Efficient energy transfer from 1 to fullerenes and stronger binding between 1 and C70 than C60 were observed, providing a basis for the selective retention of C70 in liquid chromatography columns packed with 1.
We report an anthracene-based Ni-MOF [Ni(II) metal-organic framework, {[Ni(/mu(2)-L)(2)Cl-2]center dot x(C6H6)y(MeOH)}(n) (1), L = anthracene-9,10-diyIbis(methylene)diisonicotinate whose crystal structure reveals the presence of hexagonal channels with a pore size of 1.4 nm that can accommodate guests such as C-60 and C-70. Both confocal fluorescence and Raman microscopy results are in agreement with a homogeneous distribution of fullerenes throughout the single crystals of 1. Efficient energy transfer from 1 to the fullerenes was observed, which emitted partially polarized fluorescence emission. Stronger binding between 1 and C-70 versus C-60 was confirmed from HPLC analysis of the dissolved material and provides a basis for the selective retention of C-70 in liquid chromatography columns packed with 1.
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