Functionalization of Metal–Organic Framework via Mixed-Ligand Strategy for Selective CO2 Sorption at Ambient Conditions

2015 ◽  
Vol 15 (2) ◽  
pp. 961-965 ◽  
Author(s):  
Di-Ming Chen ◽  
Na Xu ◽  
Xiao-Hang Qiu ◽  
Peng Cheng
Keyword(s):  
Metal Organic Framework ◽  
Mixed Ligand ◽  
Ambient Conditions ◽  
Co2 Sorption ◽  
Metal Organic ◽  
Organic Framework

Mixed-Ligand Metal–Organic Framework for Two-Photon Responsive Photocatalytic C–N and C–C Coupling Reactions

ACS Catalysis ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 422-430 ◽  
Author(s):  
Hanning Li ◽  
Yang Yang ◽  
Cheng He ◽  
Le Zeng ◽  
Chunying Duan
Keyword(s):  
Metal Organic Framework ◽  
Mixed Ligand ◽  
Coupling Reactions ◽  
Two Photon ◽  
Metal Organic ◽  
Organic Framework

A Solvothermally in Situ Generated Mixed-ligand Approach for NLO-Active Metal−Organic Framework Materials

2005 ◽  
Vol 44 (12) ◽  
pp. 4148-4150 ◽  
Author(s):  
Yong-Tao Wang ◽  
Hai-Hua Fan ◽  
He-Zhou Wang ◽  
Xiao-Ming Chen
Keyword(s):  
Metal Organic Framework ◽  
Mixed Ligand ◽  
Framework Materials ◽  
Active Metal ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Arene guest selectivity and pore flexibility in a metal–organic framework with semi-fluorinated channel walls

2017 ◽  
Vol 375 (2084) ◽  
pp. 20160031 ◽  
Author(s):  
Rebecca Smith ◽  
Iñigo J. Vitórica-Yrezábal ◽  
Adrian Hill ◽  
Lee Brammer
Keyword(s):  
Nmr Spectroscopy ◽  
Metal Organic Framework ◽  
Magic Angle Spinning ◽  
Nitrogen Atmosphere ◽  
Magic Angle ◽  
Ambient Conditions ◽  
Solid State Transformation ◽  
X Ray ◽  
Metal Organic ◽  
Organic Framework

A metal–organic framework (MOF) with one-dimensional channels of approximately hexagonal cross-section [Ag 2 (O 2 CCF 2 CF 2 CO 2 )(TMP)] 1 (TMP =2,3,5,6-tetramethylpyrazine) has been synthesized with MeOH filling the channels in its as-synthesized form as [Ag 2 (O 2 CCF 2 CF 2 CO 2 )(TMP)]· n (MeOH) 1-MeOH ( n  = 1.625 by X-ray crystallography). The two types of ligand connect columns of Ag(I) centres in an alternating manner, both around the channels and along their length, leading to an alternating arrangement of hydrocarbon (C–H) and fluorocarbon (C–F) groups lining the channel walls, with the former groups projecting further into the channel than the latter. MeOH solvent in the channels can be exchanged for a variety of arene guests, ranging from xylenes to tetrafluorobenzene, as confirmed by gas chromatography, 1 H nuclear magnetic resonance (NMR) spectroscopy, thermogravimetric analysis and 13 C cross-polarization magic angle spinning NMR spectroscopy. Alkane and perfluoroalkane guests, however, do not enter the channels. Although exhibiting some stability under a nitrogen atmosphere, sufficient to enable crystal structure determination, the evacuated MOF 1 is unstable for periods of more than minutes under ambient conditions or upon heating, whereupon it undergoes an irreversible solid-state transformation to a non-porous polymorph 2 , which comprises Ag 2 (O 2 CCF 2 CF 2 CO 2 ) coordination layers that are pillared by TMP ligands. This transformation has been followed in situ by powder X-ray diffraction and shown to proceed via a crystalline intermediate. This article is part of the themed issue ‘Coordination polymers and metal–organic frameworks: materials by design’.

NO2 Removal under Ambient Conditions by Nanoporous Multivariate Zirconium-Based Metal–Organic Framework

2020 ◽  
Vol 3 (11) ◽  
pp. 11442-11454
Author(s):  
Xinbo Wang ◽  
Zhenzhu Xu ◽  
Li Li ◽  
Yue Zhao ◽  
Ruyue Su ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Ambient Conditions ◽  
Metal Organic ◽  
Organic Framework
Sign in / Sign up

Export Citation Format

Share Document