Nitric Oxide Catalysis of Diazene <i>E</i>/<i>Z</i> Isomerization
Bibliographic record
Abstract
Nitric oxide is an efficient catalyst\nfor the cis-trans (<i>E</i>/<i>Z</i>) isomerization\nof diazenes. We compare the effect of room temperature solutions bearing\nlow concentrations of nitric oxide, nitrogen dioxide, or oxygen on\nthe rate of cis-trans isomerization, CTI, of the alkene bond in stilbene\nand on the azo double bond in azobenzene, as well as in four azo derivatives\nas measured by UV–vis spectroscopy. These rate enhancements\ncan be as large as 3 orders of magnitude for azobenzene in solution.\nA mechanism is proposed where catalysis is promoted by the interaction\nof the nitric oxide with the diazene nitrogen lone pairs. Density\nfunctional theory, B3LYP/6-311++g** suggests that the binding of NO\nto the diazene should be weak and reversible but that its NO adduct\nhas an E/Z isomerization barrier of 7.5 kcal/mol.
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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) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| 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) | 0.123 | 0.003 |
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; both teacher heads agree on what is shown here.
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".