| Autor: |
Sofiane Lansab, Philipp Münzner, Herbert Zimmermann, Roland Böhmer |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Journal of Non-Crystalline Solids: X, Vol 14, Iss , Pp 100097- (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2590-1591 |
| DOI: |
10.1016/j.nocx.2022.100097 |
| Popis: |
Plastic crystals are currently discussed as matrices for highly conducting materials. Among them, mixtures based on succinonitrile (SN) have received particular attention. Long ago, Austen Angell [J. Non-Cryst. Solids 131–133 (1991) 13] has shown that in mixtures with glutaronitrile (GN), the plastic phase of SN can deeply be supercooled. Here, a mixture of 60% SN – featuring deuterated methylene groups – and 40% GN is studied using 2H nuclear magnetic resonance (NMR), thus allowing selective access to the reorientational dynamics of SN. These dynamics agree with that inferred for partially deuterated SN-GN from dielectric spectroscopy which also reveal that a significant H/D isotope effect is absent. Additionally, in the liquid and slightly below the transition to the plastically crystalline state, mixtures of 60% SN and 40% GN are studied using field-gradient NMR diffusometry as well as rotational viscometry. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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