Ligand-assisted O-dealkylation of bis(bipyridyl) ruthenium(II) phosphine-ether complexes †
Bibliographic record
Abstract
The preparation and characterization of three [Ru(bpy)2(POR-P,O)](PF6)2 complexes are reported where POR = 2-methoxyphenyldiphenylphosphine in 1, 2-ethoxyphenyldiphenylphosphine in 2 and 2-methoxyethyldiphenylphosphine in 3. Complexes 1 and 2 undergo ligand-assisted O-dealkylation by the same weakly basic phosphines, a reaction typically observed for complexes containing highly basic phosphines with multiple ether substituents. The electron deficiency of the Ru(II) centre in these complexes is likely responsible for how readily they are dealkylated to yield the aryloxide complexes. Complex 3 is not susceptible to ligand-assisted dealkylation, primarily because the lower steric demand of its phosphine-ether ligand permits the thermodynamically favoured direct attack of phosphines at the Ru centre.
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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) | 0.000 | 0.002 |
| 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 | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.007 | 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".