Side‐on Coordination in Isostructural Nitrous Oxide and Carbon Dioxide Complexes of Nickel
Bibliographic record
Abstract
Abstract A nickel complex incorporating an N 2 O ligand with a rare η 2 ‐ N , N ′‐coordination mode was isolated and characterized by X‐ray crystallography, as well as by IR and solid‐state NMR spectroscopy augmented by 15 N‐labeling experiments. The isoelectronic nickel CO 2 complex reported for comparison features a very similar solid‐state structure. Computational studies revealed that η 2 ‐N 2 O binds to nickel slightly stronger than η 2 ‐CO 2 in this case, and comparably to or slightly stronger than η 2 ‐CO 2 to transition metals in general. Comparable transition‐state energies for the formation of isomeric η 2 ‐ N , N ′‐ and η 2 ‐ N , O ‐complexes, and a negligible activation barrier for the decomposition of the latter likely account for the limited stability of the N 2 O complex.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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".