A flexible metal-organic framework with double interpenetration for highly selective CO2 capture at room temperature

Phase transformation in a flexible metal-organic framework, {[Zn4(1,4-NDC)4(1,2-BPE)2]•xSolvent}n, which loses guest molecules rapidly at room temperature, leading to several phase transitions, is examined using nanoindentation technique. Nanoindentation results reveal time...

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Visualizing Structural Transformation and Guest Binding in a Flexible Metal–Organic Framework under High Pressure and Room Temperature

ACS Central Science ◽

10.1021/acscentsci.8b00378 ◽

2018 ◽

Vol 4 (9) ◽

pp. 1194-1200 ◽

Cited By ~ 23

Author(s):

Hui Yang ◽

Feng Guo ◽

Prem Lama ◽

Wen-Yang Gao ◽

Hui Wu ◽

...

Keyword(s):

High Pressure ◽

Structural Transformation ◽

Room Temperature ◽

Metal Organic Framework ◽

Guest Binding ◽

Metal Organic ◽

Flexible Metal ◽

Organic Framework

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Triplet Dynamic Nuclear Polarization of Guest Molecules through Induced Fit in a Flexible Metal-Organic Framework

10.26434/chemrxiv-2021-gsq3b ◽

2021 ◽

Author(s):

Saiya Fujiwara ◽

Naoto Matsumoto ◽

Koki Nishimura ◽

Nobuo Kimizuka ◽

Kenichiro Tateishi ◽

...

Keyword(s):

Dynamic Nuclear Polarization ◽

Room Temperature ◽

Nuclear Polarization ◽

Metal Organic Framework ◽

Induced Fit ◽

Guest Molecules ◽

Metal Organic ◽

Target Molecules ◽

Flexible Metal ◽

Organic Framework

Dynamic nuclear polarization utilizing photoexcited triplet electrons (triplet-DNP) has great potential for room-temperature hyperpolarization of nuclear spins. However, the polarization transfer to molecules of interest remains a challenge due to the fast spin relaxation and weak interaction with target molecules at room temperature in conventional host materials. Here, we demonstrate the first example of DNP of guest molecules in a porous material at around room temperature by utilizing the induced-fit-type structural transformation of a crystalline yet flexible metal-organic framework (MOF). In contrast to the usual hosts, 1H spin-lattice relaxation time becomes longer by accommodating a pharmaceutical model target 5-fluorouracil as the flexible MOF changes its structure upon guest accommodation to maximize the host-guest interactions. Combined with triplet-DNP and cross-polarization, this system realizes an enhanced 19F-NMR signal of guest target molecules at around room temperature.

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Flexible metal-organic framework compounds: In situ studies for selective CO2 capture

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2015.05.148 ◽

2015 ◽

Vol 647 ◽

pp. 24-34 ◽

Cited By ~ 15

Author(s):

A.J. Allen ◽

L. Espinal ◽

W. Wong-Ng ◽

W.L. Queen ◽

C.M. Brown ◽

...

Keyword(s):

Co2 Capture ◽

Metal Organic Framework ◽

In Situ Studies ◽

Metal Organic ◽

Flexible Metal ◽

Framework Compounds ◽

Organic Framework

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An amino-decorated NbO-type metal–organic framework for high C2H2 storage and selective CO2 capture

RSC Advances ◽

10.1039/c5ra12700a ◽

2015 ◽

Vol 5 (94) ◽

pp. 77417-77422 ◽

Cited By ~ 38

Author(s):

Jianfeng Cai ◽

Huizhen Wang ◽

Hailong Wang ◽

Xing Duan ◽

Zhiyu Wang ◽

...

Keyword(s):

Co2 Capture ◽

Room Temperature ◽

Metal Organic Framework ◽

Metal Organic ◽

Organic Framework

A novel amino-decorated NbO-type metal–organic framework (ZJU-8) has been designed and synthesized, exhibiting high acetylene storage and selective CO2 capture and separation capacities at room temperature.

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