A microporous manganese-based metal–organic framework for gas sorption and separation

Presented here is a microporous Mn-based metal–organic framework, which exhibits high selectivity for the adsorption of CO2 over N2 under ambient conditions. [Display omitted] •Presented here is a microporous formate framework.•The HCOO- was in situ generated from the decomposition of DMF.•The desol...

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Bibliographic Details
Published in:Journal of molecular structure 2014-09, Vol.1074, p.19-21
Main Authors: Zhao, Ying-Ping, Yang, Hui, Wang, Fei, Du, Zi-Yi
Format: Article
Language:English
Subjects:
Adsorption
Channels
CO2 capture and storage
Diffraction
Formates
In situ
Ligands
Metal-organic frameworks
Metal–organic framework
Molecular structure
Selectivity
Three dimensional
X-rays
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Summary:Presented here is a microporous Mn-based metal–organic framework, which exhibits high selectivity for the adsorption of CO2 over N2 under ambient conditions. [Display omitted] •Presented here is a microporous formate framework.•The HCOO- was in situ generated from the decomposition of DMF.•The desolvated framework shows highly selective CO2 capture. A metal–organic framework [Mn3(HCOO)6]·DMF (1) with in situ generated formate ligand from the decomposition of N,N-dimethylformamide (DMF) solvent has been solvothermally synthesized and structurally characterized by single-crystal X-ray diffraction, powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), Infrared Spectroscopy (IR) and Elemental analysis (EA). Each formate ligand acts as μ3-bridge to link three octahedral Mn(II) centers to form a neutral three-dimensional (3D) framework with interesting 1D zigzag channel along the b axis, in which the DMF fill the free spaces. The desolvated samples exhibit interesting adsorption properties and show high selectivity for the adsorption of CO2 over N2 under ambient conditions.
ISSN:0022-2860
1872-8014
DOI:10.1016/j.molstruc.2014.05.033