Diplatinum-Center-Mediated Transformation of a Substituted Benzene to a Cyclohexadienyl Dianion and the Breaking of C−Cl Bonds: Syntheses and Structures of Pt<sub>2</sub>R<sub>4</sub>(ttab) and Pt<sub>2</sub>(CH<sub>3</sub>)<sub>4</sub>(ttab)Cl<sub>2</sub>
Bibliographic record
Abstract
Two novel dinuclear platinum(II) complexes, Pt 2 (CH 3 ) 4 (ttab), 1, and Pt 2 Ph 4 (ttab), 2, have been synthesized from the reaction of 1,2,4,5-tetrakis(1- N- 7-azaindolyl)benzene (ttab) with Pt 2 (CH 3 ) 4 (SMe 2 ) 2 and [PtPh 2 (SMe 2 )] n ( n = 2, 3), respectively. The Pt(II) centers in both complexes are within van der Waals contact distances with the central benzene ring of the ttab ligand. Compound 1 was found to react readily with saturated chlorinated molecules such as CFCl 3, CCl 4, CHCl 3, and CH 2 Cl 2 at ambient temperature to yield a dinuclear platinum(IV) complex, Pt 2 (CH 3 ) 4 (ttab)Cl 2, 3, quantitatively. The central benzene ring of the ttab ligand in 1 was transformed to a 1,4-cyclohexadiene dianion in 3, accompanied by the formation of two internal Pt−C bonds. The structures of 1, 2, and 3 are determined by X-ray diffraction analyses.
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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 | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.002 | 0.002 |
| Meta-epidemiology (broad) | 0.003 | 0.001 |
| Bibliometrics | 0.002 | 0.004 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.000 | 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; 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".