Bibliographic record
Abstract
[5158-50-9] C2H6BBr2 (MW 120.78) (mild Lewis acid capable of selective cleavage of ethers2, 3 and acetals;4, 5 deoxygenation of sulfoxides6) Physical Data: mp −129 °C; bp 31–32 °C; d 1.238 g cm−3; fp −37 °C. Solubility: sol dichloromethane, 1,2-dichloroethane, hexane. Form Supplied in: colorless liquid. Preparative Method: can be conveniently prepared by treating Tetramethylstannane with Boron Tribromide.7 Handling, Storage, and Precautions: flammable liquid, moisture sensitive; typically stored and dispensed as a 1.5–2 M solution in dichloromethane or dichloroethane. Solutions of this sort are stable for a period of months if stored at −15 °C and properly protected from moisture.
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 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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".