Time dependent water uptake in Cu3(btc)2 MOF: Identification of different water adsorption states by 1H MAS NMR

被引：42

作者：

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

Michel, Dieter ^{[1
]}

Krautscheid, Harald ^{[2
]}

Haase, Juergen ^{[1
]}

Bertmer, Marko ^{[1
]}

机构：

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

[2] Univ Leipzig, Inst Inorgan Chem, D-04103 Leipzig, Germany

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2013年 / 180卷

关键词：

Cu-3(btc)(2) MOF; Cu2+ interaction; Water sites; Fast exchange; SSNMR; METAL-ORGANIC FRAMEWORKS; POWDER DIFFRACTION; LOCAL-STRUCTURE; CUPRIC IONS; CU-BTC; SPECTROSCOPY; SITES; SEPARATION; STABILITY; MOLECULES;

D O I：

10.1016/j.micromeso.2013.06.033

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The hydration process in a deuterated Cu-3(btc)(2) (d-Cu-3(btc)(2)) metal-organic framework (MOF) was followed by H-1 solid state NMR. Various hydrated states of d-Cu-3(btc)(2) are studied at definite time intervals after exposition of the MOF to atmospheric water. H-1 MAS NMR spectra indicate different positions of the water molecules inside the Cu-3(btc)(2) framework, and a distribution of chemical shifts. The change of the different water signals with time is followed by an intensity analysis. Fast exchange dynamics is observed when the amount of water is above two molecules per copper atom. (C) 2013 Elsevier Inc. All rights reserved.

引用

页码：8 / 13

页数：6

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