Coupling of N<sub>2</sub> and O<sub>2</sub> in the Gas Phase to Synthesize Nitric Oxide at Room Temperature: A Zeldovich-Like Strategy
Bibliographic record
Abstract
Dinitrogen (N 2 ) activation and its chemical transformations are some of the most challenging topics in chemistry. Herein, we report that heteronuclear metal anions AuNbBO – can mediate the direct coupling of N 2 and O 2 to generate NO molecules. N 2 first forms the nondissociative adsorption product AuNbBON 2 – on AuNbBO – . In the following reactions with two O 2 molecules, two NO molecules are gradually released, with the formation of AuNbBO 2 N – and AuNbBO 3 – . In the reaction with the first O 2, the generated nitrene radical (N ••– ) originating from the dissociated N 2, induces the activation of O 2 . Subsequently, the second O 2 is anchored and forms a superoxide radical (O 2 •– ); this radical attacks the other N atom to form an N–O bond, releasing the second NO. The N ••– and O 2 •– radicals play key roles in the reactions. The mechanism adopted in this direct oxidation of N 2 by O 2 to NO can be labeled as a Zeldovich-like mechanism.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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".