Ruthenium(III) complexes containing bi- and tridentate phosphorus−nitrogen ligands
Bibliographic record
Abstract
Air-stable Ru III complexes containing a bidentate aminophosphine ligand (PN) of the type mer-RuCl 3 (PN)(PR 3 ) are made from the precursors RuCl 3 (PR 3 ) 2 (DMA)·DMA (PN = o-diphenylphosphino-N,N′-dimethylaniline (P−N) and (R)-N,N′-dimethyl-1-[o-diphenylphosphinophenyl]ethylamine ((R)-AMPHOS); R = Ph, p-tolyl; DMA = N,N′-dimethylacetamide). With the tridentate bis[o-(N,N′-dimethylamino)phenyl]phenylphosphine (BNP), the product is mer-RuCl 3 (BNP) (3), while tris[o-(N,N′-dimethylaminophenyl)phosphine (TNP) is unreactive toward the precursor. Crystal structures of mer-RuCl 3 (PN)(PPh 3 ), where PN is P−N (2a), (R)-AMPHOS (4a), and 3·CHCl 3 are reported as well as those of (R)-AMPHOS, BNP, and TNP. The Ru III −aminophosphine complexes are the first monomeric Ru III species to be formed via the useful, easily synthesized, air-stable Ru III precursors RuCl 3 (PR 3 ) 2 (DMA)·DMA (1a and 1b); complex 2a is formed also via reaction of HCl with trans-RuCl 2 (P−N)(PPh 3 ). A crystal structure of mer,cis-RuCl 3 (DMA) 2 (PPh 3 )·DMA (1c), a side-product from the synthesis of the Ru III precursor, is also presented and is the first-reported complex of DMA with Ru III . Preliminary data show that the Ru III −aminophosphine complexes in DMA (a proton-accepting solvent) are reduced by H 2 to Ru II species that can react further to form an η 2 -H 2 adduct and then a Ru II -hydridochloro species.
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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".