Bibliographic record
Abstract
[75-11-6] CH2I2 (MW 267.84) InChI = 1S/CH2I2/c2-1-3/h1H2 InChIKey = NZZFYRREKKOMAT-UHFFFAOYSA-N (precursor to methylene transfer reagents: in combination with various metals or alkyl metals, generates carbenoids which cyclopropanate alkenes1 or methylenate carbonyls;2 precursor to ICH2Met and I2CHMet nucleophiles;3 participates in radical-mediated couplings4) Alternate Name: methylene iodide. Physical Data: mp 6 °C; bp 181 °C; d 3.325 g cm−3. Solubility: slightly sol H2O; sol Et2O, CHCl3, EtOH, hexane, etc. Form Supplied in: pale yellow liquid; crystallizes as pale yellow needles or plates; typically stabilized with copper powder. Purification: fractional distillation from CaH2 generally provides reagent of sufficient purity for typical uses. Handling, Storage, and Precautions: store over copper powder to inhibit radical-induced decomposition; protect from light; incompatible with many metals (Al, Mg, Na, etc.) and strong bases; mildly corrosive; toxicity presumed to be on par with CH2Cl2, i.e. moderately toxic, mutagenic; use in a 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 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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.018 | 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".