scholarly journals NMR Spectroscopy Reveals Adsorbate Binding Sites in the Metal–Organic Framework UiO-66(Zr)

2018 ◽  
Vol 122 (15) ◽  
pp. 8295-8305 ◽  
Author(s):  
Aditya Nandy ◽  
Alexander C. Forse ◽  
Velencia J. Witherspoon ◽  
Jeffrey A. Reimer
Keyword(s):  
Nmr Spectroscopy ◽  
Binding Sites ◽  
Metal Organic Framework ◽  
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’.

scholarly journals Mixed Metal–Organic Framework with Multiple Binding Sites for Efficient C 2 H 2 /CO 2 Separation

2020 ◽  
Vol 59 (11) ◽  
pp. 4396-4400 ◽  
Author(s):  
Junkuo Gao ◽  
Xuefeng Qian ◽  
Rui‐Biao Lin ◽  
Rajamani Krishna ◽  
Hui Wu ◽  
...  
Keyword(s):  
Binding Sites ◽  
Metal Organic Framework ◽  
Mixed Metal ◽  
Multiple Binding Sites ◽  
Multiple Binding ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Uncovering the Local Magnesium Environment in the Metal–Organic Framework Mg2(dobpdc) Using 25Mg NMR Spectroscopy

2017 ◽  
Vol 121 (36) ◽  
pp. 19938-19945 ◽  
Author(s):  
Jun Xu ◽  
E. S. Merijn Blaakmeer ◽  
Andrew S. Lipton ◽  
Thomas M. McDonald ◽  
Yifei Michelle Liu ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework

Tuning the Atrazine Binding Sites in an Indium-Based Flexible Metal–Organic Framework

2020 ◽  
Vol 12 (40) ◽  
pp. 44762-44768
Author(s):  
Yongwei Chen ◽  
Xuan Zhang ◽  
Haoyuan Chen ◽  
Riki J. Drout ◽  
Zhijie Chen ◽  
...  
Keyword(s):  
Binding Sites ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Flexible Metal ◽  
Organic Framework

scholarly journals Solid-State NMR Spectroscopy of Metal–Organic Framework Compounds (MOFs)

Materials ◽  
2012 ◽  
Vol 5 (12) ◽  
pp. 2537-2572 ◽  
Author(s):  
Herbert Hoffmann ◽  
Marta Debowski ◽  
Philipp Müller ◽  
Silvia Paasch ◽  
Irena Senkovska ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Metal Organic Framework ◽  
Solid State Nmr Spectroscopy ◽  
Metal Organic ◽  
Framework Compounds ◽  
Organic Framework

Reversing C2H2–CO2 adsorption selectivity in an ultramicroporous metal–organic framework platform

2019 ◽  
Vol 55 (76) ◽  
pp. 11354-11357 ◽  
Author(s):  
Hui-Min Wen ◽  
Caijun Liao ◽  
Libo Li ◽  
Ling Yang ◽  
Jing Wang ◽  
...  
Keyword(s):  
Binding Sites ◽  
Co2 Adsorption ◽  
Metal Organic Framework ◽  
Fine Tuning ◽  
Adsorption Selectivity ◽  
Pore Sizes ◽  
Metal Organic ◽  
Co2 Adsorption Selectivity ◽  
At Will ◽  
Organic Framework

Fine-tuning the pore sizes, metrics, and binding sites within a MOF platform can reverse the adsorption selectivity between C2H2 and CO2 at will.

Subphthalocyanine encapsulated within MIL-101(Cr)-NH2 as a solar light photoredox catalyst for dehalogenation of α-haloacetophenones

2019 ◽  
Vol 48 (48) ◽  
pp. 17735-17740 ◽  
Author(s):  
Andrea Santiago-Portillo ◽  
Sonia Remiro-Buenamañana ◽  
Sergio Navalón ◽  
Hermenegildo García
Keyword(s):  
Binding Sites ◽  
Metal Organic Framework ◽  
Solar Light ◽  
Amino Groups ◽  
Metal Organic ◽  
Organic Framework

Subphthalocyanine has been incorporated into a robust metal–organic framework having amino groups as binding sites.

Monitoring adsorption-induced switching by 129Xe NMR spectroscopy in a new metal–organic framework Ni2(2,6-ndc)2(dabco)

2010 ◽  
Vol 12 (37) ◽  
pp. 11778 ◽  
Author(s):  
Nicole Klein ◽  
Christin Herzog ◽  
Michal Sabo ◽  
Irena Senkovska ◽  
Jürgen Getzschmann ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Metal Organic Framework ◽  
129Xe Nmr ◽  
Metal Organic ◽  
Organic Framework

Identifying UiO‐67 Metal‐Organic Framework Defects and Binding Sites through Ammonia Adsorption

ChemSusChem ◽  
2021 ◽  
Author(s):  
Venkata Swaroopa Datta Devulapalli ◽  
Ryan P McDonnell ◽  
Jonathan P. Ruffley ◽  
Priyanka B. Shukla ◽  
Tian-Yi Luo ◽  
...  
Keyword(s):  
Binding Sites ◽  
Metal Organic Framework ◽  
Ammonia Adsorption ◽  
Metal Organic ◽  
Organic Framework
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