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Melt-quenched carboxylate metal–organic framework glasses
- Title
- Melt-quenched carboxylate metal–organic framework glasses
- Authors
- Kim; Minhyuk; Lee; Hwa-Sub; Seo; Dong-Hyun; Cho; Sung June; Jeon; Eun-Chae; Moon; Hoi Ri
- Ewha Authors
- 문회리
- SCOPUS Author ID
- 문회리
![scopus](/images/layout/icon2.png)
- Issue Date
- 2024
- Journal Title
- Nature Communications
- ISSN
- 2041-1723
- Citation
- Nature Communications vol. 15, no. 1
- Publisher
- Nature Research
- Indexed
- SCIE; SCOPUS
![scopus](/images/layout/scopus2.gif)
- Document Type
- Article
- Abstract
- Although carboxylate-based frameworks are commonly used architectures in metal-organic frameworks (MOFs), liquid/glass MOFs have thus far mainly been obtained from azole- or weakly coordinating ligand-based frameworks. This is because strong coordination bonds of carboxylate ligands to metals block the thermal vitrification pathways of carboxylate-based MOFs. In this study, we present the example of carboxylate-based melt-quenched MOF glasses comprising Mg2+ or Mn2+ with an aliphatic carboxylate ligand, adipate. These MOFs have a low melting temperature (Tm) of 284 °C and 238 °C, respectively, compared to zeolitic-imidazolate framework (ZIF) glasses, and superior mechanical properties in terms of hardness and elastic modulus. The low Tm may be attributed to the flexibility and low symmetry of the aliphatic carboxylate ligand, which raises the entropy of fusion (ΔSfus), and the lack of crystal field stabilization energy on metal ions, reducing enthalpy of fusion (ΔHfus). This research will serve as a cornerstone for the integration of numerous carboxylate-based MOFs into MOF glasses. © The Author(s) 2024.
- DOI
- 10.1038/s41467-024-45326-8
- Appears in Collections:
- 자연과학대학 > 화학·나노과학전공 > Journal papers
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