Reactivity of a Dimethylplatinum(II) Complex with the Bis(2-pyridyl)dimethylsilane Ligand: Easy Silicon–Carbon Bond Activation
Bibliographic record
Abstract
The compound [PtMe 2 (bps)] ( 1; bps = bis(2-pyridyl)dimethylsilane) undergoes easy oxidative addition with bromine, iodine, methyl iodide, or methyl triflate to give [PtBr 2 Me 2 (bps)], [PtI 2 Me 2 (bps)], [PtIMe 3 (bps)], or [PtMe 3 (OH 2 )(bps)][OTf], respectively. The complex [PtIMe 3 (bps)] is slowly hydrolyzed in solution, with cleavage of the pyridyl–silicon bonds, to give [PtIMe 3 (py) 2 ] and (Me 2 SiO) n . In contrast, oxidation of 1 with oxygen/CF 3 CH 2 OH, hydrogen peroxide, or dibenzoyl peroxide/H 2 O occurs with cleavage of a methyl–silicon bond to give [PtMe(bps)-μ-{κ 3 N, N, O -OSiMe(2-C 5 H 4 N) 2 PtMe 3 ][CF 3 CH 2 OB(C 6 F 5 ) 3 ], [PtMe 3 {κ 3 N, N, O -(2-C 5 H 4 N) 2 SiMeO}], or [PtMe 3 {κ 3 N, N, O -(2-C 5 H 4 N) 2 SiMeOH}][PhCOO], respectively. Mechanistic studies indicate that this methyl transfer from silicon to platinum occurs after oxidation to platinum(IV) and is induced by hydroxide attack at silicon.
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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 | 0.001 | 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".