Osmium, rhenium, and group 6 derivatives of bis(diphenylphosphino) alkane undecacarbonyl triosmium
Bibliographic record
Abstract
The osmium compounds [Os3(CO)10PPh2(CH2)4PPh2]2 and [Os3(CO)10PPh2(CH2)6PPh2]2 have been synthesized from PPh2(CH2)nPPh2 and Os3(CO)10(MeCN)2. Spectroscopic evidence suggests the structure of each compound to be a dimer in which both phosphines of each of the bidentate PPh2(CH2)nPPh2 groups are bridged between adjacent osmium atoms on each of the osmium clusters. The bidentate phosphine bridged compounds Os3(CO)11PPh2(CH2)nPPh2M(CO)5 for M= Cr, Mo, and W (n = 1 - 6) have been synthesized from Os3(CO)11PPh2(CH2)nPPh2 and M(CO)5THF. Structural data indicates that the uncoordinated phosphine of Os3(CO)11PPh2(CH2)nPPh2 acts as a typical donor ligand to the electron deficient metal centre of the M(CO)5 unit.
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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".