Conformational analysis of 1,2-dichloroethane adsorbed in metal-organic frameworks
| Autor: | Maxwell Goldman, Yining Huang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Enthalpy 02 engineering and technology Powder xrd 1 2-Dichloroethane 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound symbols.namesake Crystallography Adsorption chemistry symbols Polar Metal-organic framework van der Waals force 0210 nano-technology Spectroscopy |
| Zdroj: | Vibrational Spectroscopy. 95:68-74 |
| ISSN: | 0924-2031 |
| Popis: | This paper describes the conformational analysis of 1,2-dichloroethane adsorbed into three different metal-organic frameworks, MIL-53(Al), MIL-68(In), MIL-53-NH2(Al), by using FT-Raman spectroscopy in combination with powder XRD and TGA. For non-polar frameworks, the main guest-host interactions are van der Waal interactions between the C H bonds of 1,2-dichloroethane (DCE) and the π system of terephthalate ligands. The polar framework of MIL-53-NH2 is able to stabilize the gauche conformation of DCE at room temperature. The conformational enthalpy of each system was determined through variable temperature FT-Raman spectroscopy. Furthermore, the line-width of the Raman bands provides information regarding the molecular motion of the halocarbons at various temperatures inside the framework. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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