How the cation size impacts on the relaxational and diffusional dynamics of supercooled butylammonium-based ionic liquids: DPEBA–TFSI versus BTMA–TFSI

Autor:	P. Münzner, Roland Böhmer, Catalin Gainaru
Rok vydání:	2021
Předmět:	chemistry.chemical_compound Materials science chemistry Chemical physics Ionic liquid Physical and Theoretical Chemistry Supercooling
Zdroj:	Zeitschrift für Physikalische Chemie. 236:923-937
ISSN:	2196-7156 0942-9352
Popis:	Li-bis(trifluoromethylsulfonyl)imide based ionic liquids with either butyl-trimethylammonium or N,N-dimethyl-N-(2-(propionyloxy)-ethyl)butan-1-ammonium as the anion were studied using proton and fluorine relaxometry as well as using field-gradient diffusometry to gain separate access to cation and anion dynamics in these compounds. The transport parameters obtained for these ionic liquids are compared with the estimates based on the conductivity data from literature and from the present work. The impact of cation size on correlation effects, the latter parameterized in terms of various Haven ratios, is mapped out.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2c3385f11fd3c5a64ddd4742903a9953 https://doi.org/10.1515/zpch-2021-3138 Zobrazit plný text záznamu