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 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) | 0.001 | 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) | 0.004 | 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".