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. 2022 Mar 15;13:1342. doi: 10.1038/s41467-022-29021-0

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — a The representative dielectric data recorded for [P_666,14][TCM] in liquid 1 (solid lines) and liquid 2 (scatters) phases, recorded during compression at isothermal (IT) conditions of 233 K and presented in electric modulus representation. b The representative M″(f) spectra of [P_666,14][TCM] recorded at various T-P conditions however at the same τ_σ superimposed to each other in liquid 1 and liquid 2, respectively. Note that time temperature pressure superposition (TTPS) rule is valid. c The β_KWW exponent is plotted as a function of the frequency of modulus peak maximum at various thermodynamic conditions. IBA denotes 0.1 MPa and various temperatures, while IT denotes isotherm and various pressure. Triangles-[P_666,14][TFSI], circles-[P_666,14][TCM], squares-[P_666,14][TAU]. The horizontal line indicates β_KWW for [P_666,14][BOB] being constant at various T-P conditions. The color area on a, b denotes the liquid 1 phase. L1 denotes liquid 1 while L2 liquid 2. Source data are provided as a Source Data file.