Bibliographic record
Abstract
[86609-17-8] C20H16CuMn2N4O8 (MW 613.79) InChI = 1S/2C10H8N2.Cu.2Mn.8O/c2*1-3-7-11-9(5-1)10-6-2-4-8-12-10;;;;;;;;;;;/h2*1-8H;;;;;;;;;;;/q;;+2;;;;;;;;;2*-1 InChIKey = MFJBERCSDXBHFL-UHFFFAOYSA-N (oxidant, used for the oxidation of thiols to disulfides,1 benzylic alcohols to carbonyl compounds,2 aromatic amines to azo compounds,2 benzylamine and oximes to the corresponding carbonyl compounds2) Alternate Name: bis(2,2-bipyridine-N,N′)copper(2+) permanganate. Physical Data: purple solid; decomposes at 105–110 °C.2 Solubility: sol water, acetone, and methylene chloride.2 Analysis of Reagent Purity: λmax (log ε) (H2O): 290 nm (4.50), 296 (4.59), 306 (4.58), 458, (3.23), 474 (3.28), 491 (3.38), 510 (3.49), 529 (3.57), 552 (3.54), 576 (3.35). Preparative Method: Potassium Permanganate (0.01 mol) dissolved in a minimum of water is added to bis(2,2′-bipyridyl)copper(II) chloride (0.02 mol) in water (25 mL). On cooling a purple precipitate is collected and air dried.2 The yield is 95%. Handling, Storage, and Precautions: oxidant, store in a glass vessel at or below rt. The reagent should be filtered and dried on a filter paper, not on a sintered glass funnel. It should be transferred with nonmetallic spatulas; if metallic spatulas are used the reagent may burst into flame.1
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 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.013 | 0.009 |
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".