Polycationic Rh–JosiPhos Polymers Supported on Phosphotungstic Acid/Al<sub>2</sub>O<sub>3</sub> by Multiple Electrostatic Attractions
Bibliographic record
Abstract
Cationic Rh–JosiPhos complexes were tethered to crowded, ring-opening olefin metathesis (ROMP)-active norbornene groups. These monomers underwent facile, alternating ROMP (alt-ROMP) with cyclooctene as the co-monomer catalyzed by RuCl2(═CHPh)(PCy3)2 to form linear, polycationic copolymers. The polymers were readily absorbed by phosphotungstic acid (PTA) on Al2O3 via multiple electrostatic attractions between the cationic Rh centers in the polymer and the PTA anions on the Al2O3 support. The enantioselective hydrogenation of dimethyl itaconate occurred with 100% conversion, 5000 turnovers per run, with up to 96% ee, and without significant Rh leaching over 10 reuses of the catalyst.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.004 |
| 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) | 0.002 | 0.001 |
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".