Cyclometalated Osmium Complexes Containing a Tridentate PCP Ligand
Bibliographic record
Abstract
Reactions between [Et 4 N] 2 OsCl 6 and 1,3-(CH 2 PBu t 2 ) 2 C 6 H 4 afforded the 16-e chloride complexes OsCl(CO)(PCP) ( 1 ) and OsH 2 Cl(PCP) ( 2 ) (PCP = [2,6-(CH 2 PBu t 2 ) 2 C 6 H 3 ] - ) in methanol/isoamyl alcohol and 2-propanol, respectively. The iodide OsH 2 I(PCP) ( 3 ) was obtained from 2 in methyl iodide. Treatment of 1 and 2 with [BH 4 ] - gave the hydride and dihydrogen compounds OsH(CO)(PCP) ( 4 ), OsH(H 2 )(CO)(PCP) ( 5 ), and OsH 3 (H 2 )(PCP) ( 6 ), while formation of the dihydrogen complexes Os(H 2 ) 2 Cl(PCP) ( 7a ) and OsH 2 (H 2 )Cl(PCP) ( 7b ) was observed by NMR in solution of 2 under H 2 . The structures of 1, 2, and 3 were determined by X-ray crystallography.
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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 | 0.001 | 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".