Diethylaminodifluorosulfinium Tetrafluoroborate (XtalFluor-E®)
Bibliographic record
Abstract
[63517-29-3] C4H10BF6NS (MW 229.00) InChI = 1S/C4H10F2NS.BF4/c1-3-7(4-2)8(5)6;2-1(3,4)5/h3-4H2,1-2H3;/q+1;-1 InChIKey = YLNKFQWRRIXZPJ-UHFFFAOYSA-N (deoxofluorinating agent/activating agent) Alternate Name: N,N-diethylamino-S,S-difluorosulfinium tetrafluoroborate, (difluoro-λ4-sulfanylidene)-diethylazanium tetrafluoroborate. Physical Data: mp 84–85 °C. Solubility: partially soluble in CH3CN, CH2Cl2, ClCH2CH2Cl, EtOAc, toluene, and DMF. Reacts slowly with CH3CN and DMF. Form Supplied in: off-white crystalline powder; few commercial sources. Purification: recrystallization from dichloroethane Handling, Storage, and Precautions: Diethylaminodifluorosulfinium tetrafluoroborate (XtalFluor-E®) is toxic by inhalation, through contact with skin, and if swallowed. It should be used only in a chemical fume hood. Stable under recommended storage conditions (tightly closed container in a dry and well-ventilated place at 2–8 °C). Reacts violently with water.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.041 | 0.029 |
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".