Induced Fit of C2 H2 in a Flexible MOF Through Cooperative Action of Open Metal Sites.
Angew Chem Int Ed Engl
; 58(25): 8515-8519, 2019 Jun 17.
Article
em En
| MEDLINE
| ID: mdl-30994258
ABSTRACT
Porous materials that can undergo pore-structure adjustment to better accommodate specific molecules are ideal for separation and purification. Here, we report a stable microporous metal-organic framework, JNU-1, featuring one-dimensional diamond-shaped channels with a high density of open metal sites arranged on the surface for the cooperative binding of acetylene. Together with its framework flexibility and appropriate pore geometry, JNU-1 exhibits an induced-fit behavior for acetylene. The specific binding sites and continuous framework adaptation upon increased acetylene pressure are validated by molecular modeling and inâ
situ X-ray diffraction study. This unique induced-fit behavior endows JNU-1 with an unprecedented increase in the acetylene binding affinity (adsorption enthalpy up to 47.6â
kJ mol-1 at ca. 2.0â
mmol g-1 loading).
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Ano de publicação:
2019
Tipo de documento:
Article