On the Interaction between N-Heterocyclic Carbenes and Organic Acids: Structural Authentication of the First N−H⋅⋅⋅C Hydrogen Bond and Remarkably Short C−H⋅⋅⋅O Interactions This work was supported by the EPSRC (UK) (J.A.C.), the Royal Society (M.G.D., J.A.K.H.), the NSERC (J.A.C.C.), Simon Fraser University (J.A.C.C.), Acadia University (R.L.W.H), and the University of Bath (S.P.R.).
Bibliographic record
Abstract
Ungewöhnliche Wasserstoffbrücken wurden bei den Addukten beobachtet, die aus einem sterisch anspruchsvollen N-heterocyclischen Carben mit einem Phenol und einem Diarylamin erhalten wurden. Im ersten Fall – hier wird das Carben protoniert – enthält das Addukt 1 die bislang kürzeste C−H⋅⋅⋅O-Brücke; im zweiten Fall entsteht kein Ionenpaar, sondern das neutrale Carben-Amin-Addukt 2 mit einer einzigartigen N−H⋅⋅⋅C-Brücke.
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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 | 0.002 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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".