Exploration of Gate-Opening and Breathing Phenomena in a Tailored Flexible Metal-Organic Framework
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- Exploration of Gate-Opening and Breathing Phenomena in a Tailored Flexible Metal-Organic Framework
- Hyun, Sung-min; Lee, Jae Hwa; Jung, Gwan Yeong; Kim, Yun Kyeong; Kim, Tae Kyung; Jeoung, Sungeun; Kwak, Sang Kyu; Moon, Dohyun; Moon, Hoi Ri
- POROUS COORDINATION-POLYMER; GAS-ADSORPTION; SINGLE-CRYSTAL; CARBON-DIOXIDE; CO2 ADSORPTION; SELECTIVE ADSORPTION; GUEST MOLECULES; MIL-53; TRANSFORMATION; SIMULATIONS
- Issue Date
- AMER CHEMICAL SOC
- INORGANIC CHEMISTRY, v.55, no.4, pp.1920 - 1925
- Flexible metal–organic frameworks (MOFs) show the structural transition phenomena, gate opening and breathing, upon the input of external stimuli. These phenomena have significant implications in their adsorptive applications. In this work, we demonstrate the direct capture of these gate-opening and breathing phenomena, triggered by CO2 molecules, in a well-designed flexible MOF composed of rotational sites and molecular gates. Combining X-ray single crystallographic data of a flexible MOF during gate opening/closing and breathing with in situ X-ray powder diffraction results uncovered the origin of this flexibility. Furthermore, computational studies revealed the specific sites required to open these gates by interaction with CO2 molecules.
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