Pt<sup>II</sup> and Pd<sup>II</sup> Complexes with a <i>trans</i>‐Chelating Bis(pyridyl) Ligand
Why this work is in the frame
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Bibliographic record
Abstract
Abstract An atropisomeric bis(pyridyl) chelate ligand bis{3,3′‐[N‐Ph‐2‐(2′‐py) indolyl]} (bpib) has been found to readily form trans ‐chelating Pd II and Pt II complexes. Two such complexes, Pt(bpib)Cl 2 and Pd(bpib)Cl 2 have been isolated and their structures were determined by single‐crystal X‐ray diffraction analysis. Both Pt(bpib)Cl 2 and Pd(bpib)Cl 2 have a chiral structure with C 2 symmetry. Pt(bpib)Cl 2 displays a long‐lived phosphorescence with λ em = 595 nm in a frozen CH 2 Cl 2 solution at 77 K. To examine the potential use of the trans chelate bpib ligand in oxidative coupling reactions catalysed by Pd II compounds, acetoxylation of benzene, chlorobenzene and toluene by PhI(OAc) 2 using Pd(OAc) 2 /bpib (2:1) as the catalyst was examined and compared with the cis ‐chelating system Pd(OAc) 2 /2,2′‐bipyridine (bipy). The bpib system was found to accelerate the reaction but lower the overall yield.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 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) | 0.001 | 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 it