2,2,6,6-Tetramethylpiperidin-1-oxyl
Bibliographic record
Abstract
[2564-83-2] C9H18NO (MW 156.28) InChI = 1S/C9H18NO/c1-8(2)6-5-7-9(3,4)10(8)11/h5-7H2,1-4H3 InChIKey = QYTDEUPAUMOIOP-UHFFFAOYSA-N (oxidizing agent for the conversion of primary alcohols to aldehydes2, 3 or carboxylic acids,2 of secondary alcohols to ketones,2 and of diols to lactones or hydroxy aldehydes4) Alternate Name: TEMPO. Physical Data: mp 40.0 °C; fp 67 °C. Solubility: soluble in all organic solvents and 0.03 mol L−1 in H2O at 25 °C. Form Supplied in: red orange solid; commercially available. Analysis of Reagent Purity: IR (Nujol) 1330, 1180, 1060, 975, 950 cm−1;5 UV–Vis, λ (ϵ) = heptane, 470 nm (10.5), dioxane, 465 nm (10.4), 240–242 nm (2030).5 Purification: sublimation.6 Handling, Storage, and Precautions: TEMPO is a toxic substance, and a severe irritant which is readily absorbed through the skin.7 Its toxicity is probably related to the formation of hydroxylamine metabolites.8
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 | 0.005 |
| 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 | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.066 | 0.001 |
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".