Phosphido-bridged Ta/Rh bimetallic complex: synthesis, structure, and catalytic hydrosilylation of acetophenone
Bibliographic record
Abstract
Reaction of Cp2TaH3 (1) with ClPEt2 gives the insertion product [Cp2TaH2(PHEt2)]Cl (5), which upon deprotonation with LiN(SiMe3)2 affords the phosphido complex Cp2TaH2(PEt2) (6) as the kinetic product. The latter transforms by a first-order reaction during the course of 3.5 days to the phosphine complex Cp2TaH(PHEt2) (7). Repetition of this insertion/deprotonation sequence gives the compounds [Cp2Ta(PHEt2)2]Cl (8) and Cp2Ta(PEt2)(PHEt2) (9). Reaction of the latter with 0.5[(μ-Cl)Rh(η2-C2H4)]2 in the presence of LiN(SiMe3)2 gives the bimetallic complex Cp2Ta(μ-PEt2)2Rh(η2-C2H4) (10), which was studied by NMR and X-ray diffraction analysis. Complex 10 catalyses the hydrosilylation of acetophenone by PhMeSiH2.
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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) | 0.028 | 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".