Neutral and Cationic Platinum(II) Complexes Supported by a P,N-Functionalized Indene Ligand: Structural and Reactivity Comparisons with a Related Gold(III) Zwitterion
Bibliographic record
Abstract
The structural and reactivity properties of new Pt(II) and Au(III) complexes featuring κ 2 -2- N Me 2 -3- P i Pr 2 -indene ( 1b ) or κ 2 -2- N Me 2 -3- P i Pr 2 -indenide ( 1c ) ancillary ligands are examined. Complex [ 1c ]AuMe 2 ( 3 ), a formally zwitterionic relative of the neutral complex [ 1b ]PtMe 2 ( 2b ), was prepared in 41% isolated yield from [ 1c ]Li and 0.5 [Me 2 AuCl] 2 . Whereas 2b was observed to react with H 2 O, Ph 3 SiH, and PhSiH 3 over 48 h at 50 °C, complex 3 proved unreactive under these reaction conditions. Similarly, 2b exhibited modest catalytic activity for the addition of triethylsilane to styrene, while no conversion was achieved by use of 3 as a catalyst. Observations made during the course of examining the catalytic abilities of [ 1b ]PtClMe ( 7 ) and 7 /AgX (X = BF 4 or OTf) for this addition reaction prompted the rational preparation of the dinuclear cation [{( 1b )PtMe} 2 Cl] + BF 4 - ([ 8 ] + BF 4 -; 61%) as well as the monomeric cations [( 1b )PtMeL] + BF 4 - (L = SMe 2, [ 9 ] + BF 4 -, 77%; L = MeCN, [ 10 ] + BF 4 -, 84%). Single-crystal X-ray diffraction data are provided for 2b, 3, [ 8 ] + BF 4 -, and [ 9 ] + BF 4 - .
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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) | 0.001 | 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".