Bibliographic record
Abstract
Abstract Divergent reactivity of organometallic rhodium(I) complexes, which led to the isolation of neutral rhodium silylenes, is described. Addition of PhRSiH 2 (R=H, Ph) to the rhodium cyclooctene complex ( i Pr NNN)Rh(COE) (1‐COE; i Pr NNN=2,5‐[ i Pr 2 P=N(4‐ i PrC 6 H 4 )] 2 N(C 6 H 2 ) − , COE=cyclooctene) resulted in the oxidative addition of an Si−H bond, providing rhodium(III) silyl hydride complexes ( i Pr NNN)Rh(H)SiHRPh (R=H, 2 ‐SiH 2 Ph; Ph, 2 ‐SiHPh 2 ). When the carbonyl complex ( i Pr NNN)Rh(CO) ( 1 ‐CO) was treated with hydrosilanes, base‐stabilized rhodium(I) silylenes κ 2 ‐ N , N ‐( i Pr NNN)(CO)Rh=SiRPh (R=H, 3 ‐SiHPh; Ph, 3 ‐SiPh 2 ) were isolated and characterized using multinuclear NMR spectroscopy and X‐ray crystallography. Both silylene species feature short Rh−Si bonds [2.262(1) Å, 3 ‐SiHPh; 2.2702(7) Å, 3 ‐SiPh 2 ] that agree well with the DFT‐computed structures. The overall reaction led to a change in the i Pr NNN ligand bonding mode (κ 3 →κ 2 ) and loss of H 2 from PhSiRH 2 , as corroborated by deuterium labelling experiments.
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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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.162 | 0.001 |
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; both teacher heads agree on what is shown here.
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".