TY - JOUR
T1 - A Flexible metal-organic framework
T2 - Guest molecules controlled dynamic gas adsorption
AU - Yue, Yanfeng
AU - Rabone, Jeremy A.
AU - Liu, Hongjun
AU - Mahurin, Shannon M.
AU - Li, Man Rong
AU - Wang, Hailong
AU - Lu, Zhengliang
AU - Chen, Banglin
AU - Wang, Jihang
AU - Fang, Youxing
AU - Dai, Sheng
N1 - Publisher Copyright:
© 2015 American Chemical Society.
PY - 2015/4/30
Y1 - 2015/4/30
N2 - A flexible metal-organic framework (MOF) of [Zn3(btca)2(OH)2]·(guest)n (H2btca = 1,2,3-benzotriazole-5-carboxylic acid) that exhibits guest molecule-controlled dynamic gas adsorption is reported in which carbon dioxide molecules rather than N2, He, and Ar induce a structural transition with a corresponding appearance of additional steps in the isotherms. Physical insights into the dynamic adsorption behaviors of flexible compound 1 were detected by gas adsorption at different temperatures and different pressures and confirmed by Fourier transform infrared spectroscopy and molecular simulations. Interestingly, by taking advantage of the flexible nature inherent to the framework, this MOF material enables highly selective adsorption of CO2/N2, CO2/Ar, and CO2/He of 36.3, 32.6, and 35.9, respectively, at 298 K. This class of flexible MOFs has potential applications for controlled release, molecular sensing, noble gas separation, smart membranes, and nanotechnological devices.
AB - A flexible metal-organic framework (MOF) of [Zn3(btca)2(OH)2]·(guest)n (H2btca = 1,2,3-benzotriazole-5-carboxylic acid) that exhibits guest molecule-controlled dynamic gas adsorption is reported in which carbon dioxide molecules rather than N2, He, and Ar induce a structural transition with a corresponding appearance of additional steps in the isotherms. Physical insights into the dynamic adsorption behaviors of flexible compound 1 were detected by gas adsorption at different temperatures and different pressures and confirmed by Fourier transform infrared spectroscopy and molecular simulations. Interestingly, by taking advantage of the flexible nature inherent to the framework, this MOF material enables highly selective adsorption of CO2/N2, CO2/Ar, and CO2/He of 36.3, 32.6, and 35.9, respectively, at 298 K. This class of flexible MOFs has potential applications for controlled release, molecular sensing, noble gas separation, smart membranes, and nanotechnological devices.
UR - http://www.scopus.com/inward/record.url?scp=84928911338&partnerID=8YFLogxK
U2 - 10.1021/acs.jpcc.5b02359
DO - 10.1021/acs.jpcc.5b02359
M3 - Article
AN - SCOPUS:84928911338
SN - 1932-7447
VL - 119
SP - 9442
EP - 9449
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 17
ER -