A Comparison among Viscosity, Density, Conductivity, and Electrochemical Windows of <i>N</i>-<i>n</i>-Butyl-<i>N</i>-methylpyrrolidinium and Triethyl-<i>n</i>-pentylphosphonium Bis(fluorosulfonyl imide) Ionic Liquids and Their Analogues Containing Bis(trifluoromethylsulfonyl) Imide Anion
Why this work is in the frame
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Bibliographic record
Abstract
Ionic liquid consists of an organic cation and generally an inorganic anion. The properties of liquids can be modulated by changing the anion or the cation or both. Two ionic liquids derived from the anion [FSI] were synthesized and characterized: ( N - n -butyl- N -methylpyrrolidinium bis(fluorosulfonyl imide), [BMPYR][FSI]) and triethyl- n -pentylphosphonium bis(fluorosulfonyl)imide), [P 2225 ][FSI]). We also report the comparison with [TFSI] based ionic liquids, namely: ( N - n -butyl- N -methylpyrrolidinium bis(trifluoromethylsulfonyl)imide), [BMPYR][TFSI]), ( N - n -butyl- N -methylpiperidinium bis(trifluoromethylsulfonyl)imide), [BMP][TFSI]), triethyl- n -pentylphosphonium bis(trifluoromethylsulfonyl)imide), [P 2225 ][TFSI]) and (triethyl(2-methoxyethyl) phosphonium bis(trifluoromethylsulfonyl imide), [P 222201 ][TFSI]. Thermophysical properties, such as viscosity (298.15–373.15 K), density (298.15–373.15 K), conductivity (298.15–361.15 K), electrochemical (cutoff density current within 150 μA·cm –2 ), and thermal stability (303.15–973.15 K) were experimentally determined. The results showed that [FSI] derivatives exhibit better transport properties and lower thermal and electrochemical stability when compared with their [TFSI] counterparts.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it