Photolytic and Thermal Reactions of [C<sub>6</sub>H<sub>4</sub>(PPh<sub>2</sub>)<sub>2</sub>(μ-N<sub>2</sub>)] and Its Lewis Acid Adducts: N–N Bond Cleavage and Liberation of N<sub>2</sub>
Bibliographic record
Abstract
The known species (Ph 3 P) 2 N 2 was previously described as two phosphine donors associated with a doubly Lewis acidic N 2 -unit based on its thermal liberation of N 2 . Herein, we prepare the related species [C 6 H 4 (PPh 2 ) 2 (μ-N 2 )] 4, where the cisoid chelation of the N 2 fragment facilitates both N 2 liberation and N–N bond cleavage reactions. In addition, these reactions can be achieved selectively via thermolysis of a Lewis acid adduct of 4 or by direct photolysis, respectively. These findings provide insights on avenues to P(V) reduction, photochemical N–C bond formation, and the design of donor–acceptor combinations for N 2 capture and functionalization.
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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) | 0.000 | 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) | 0.002 | 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 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".