Synthesis of Poly(heteroarylenevinylene) Derivatives via Rhodium-Catalyzed Hydroarylation of Alkynes
Bibliographic record
Abstract
Organic electronics has developed into a significant field of research and industry in the last decade. The progress has been enabled by the many advancements made in synthetic technologies, which allow for the design of a plethora of interesting material candidates. Poly(p-phenylenevinylene) derivatives (PPVs) are a particularly interesting class of polymers that were among the first to garner attention. However, due to their demanding syntheses, limited scope, and relative intolerance to heterocycles, PPVs have fallen out of popularity. New synthetic methods, such as direct C–H bond activation, have emerged that allow for the creation of polyheteroaromatics through the use of simpler starting materials than those used in traditional cross-coupling strategies. Here, we report an extension of a hydroarylation reaction to the synthesis of poly(heteroarylenevinylene) derivatives (PHAVs) containing various desirable heterocycles with Mn values ranging from 8 to 23 kDa without producing stoichiometric amounts of waste.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".