Bibliographic record
Abstract
image [7783‐42‐8] SOF 2 (MW 86.061) InChI = 1S/F2OS/c1‐4(2)3 InChIKey = LSJNBGSOIVSBBR‐UHFFFAOYSA‐N (reagent used for fluorination, nucleophilic acyl substitutions including one‐pot peptide coupling and introduction of S(O)F group) Alternative Names: sulfinyl fluoride, sulfur difluoride oxide, sulfur difluoride monoxide, sulfurous oxyfluoride, thionyl difluoride. Physical Data: mp −129.5 °C, bp −43.8 °C, d 1.758 g cm −3 . Solubility: soluble in ethanol, ether, and benzene. Hydrolyzes in water. Form Supplied in: colorless gas packaged in cylinders, commercially available. Analysis of Reagent Purity: singlet in 19 F NMR at δ −72.2. 1,2 IR (cm −l ) 1333, 808, 748, 530, 410, 390. 3 Preparative Methods: thionyl fluoride is typically generated from thionyl chloride and a fluoride salt followed by condensation of the resulting gas. 4 More conveniently, it can be generated ex situ, bubbled in various organic solvents, and used directly or kept as a stock solution. 5 It is also one of the major decomposition products of sulfur hexafluoride under electric discharges, by hydrolysis of sulfur tetrafluoride in air. 6 Purification: fractionated distillation through a low‐temperature column. Handling, Storage, and Precautions: toxic gas that should be handled in a well‐ventilated fume hood.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.075 | 0.020 |
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".