Effects of varying water adsorption on a Cu3(BTC)2 metal-organic framework (MOF) as studied by 1H and 13C solid-state NMR spectroscopy

被引：132

作者：

Gul-E-Noor, Farhana ^{[1
]}

Jee, Bettina ^{[1
]}

Poeppl, Andreas ^{[1
]}

Hartmann, Martin ^{[2
]}

Himsl, Dieter ^{[2
]}

Bertmer, Marko ^{[1
]}

机构：

[1] Univ Leipzig, Inst Expt Phys 2, D-04103 Leipzig, Germany

[2] Univ Erlangen Nurnberg, ECRC, D-91058 Erlangen, Germany

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2011年 / 13卷 / 17期

关键词：

PARAMAGNETIC LANTHANIDE COMPLEXES; MAS NMR; HYDROGEN ADSORPTION; RESOLUTION; SENSITIVITY; SEPARATION; HKUST-1; SPECTRA; IONS; BTC;

D O I：

10.1039/c0cp02848g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The process of water adsorption on a dehydrated Cu-3(BTC)(2) (copper (II) benzene 1,3,5-tricarboxylate) metal-organic framework (MOF) was studied with H-1 and C-13 solid-state NMR. Different relative amounts of water (0.5, 0.75, 1, 1.5, 2, and 5 mole equivalents with respect to copper) were adsorbed via the gas phase. H-1 and C-13 MAS NMR spectra of dehydrated and water-loaded Cu-3(BTC)(2) samples gave evidence on the structural changes due to water adsorption within the MOF material as well as information on water dynamics. The analysis of H-1 spinning sideband intensities reveals differences in the H-1-Cu-63/65 hyperfine coupling between dehydrated and water-loaded samples. The investigation was continued for 60 days to follow the stability of the Cu-3(BTC)(2) network under humid conditions. NMR data reveal that Cu-3(BTC)(2) decomposes quite fast with the decomposition being different for different water contents.

引用

页码：7783 / 7788

页数：6

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