<i>P</i>‐Terthienyl‐Functionalized Dithieno[3,2‐<i>b</i>:2′,3′‐<i>d</i>]phospholes
Bibliographic record
Abstract
Abstract A series of dithienophospholes with different P‐thienyl substituents have been synthesized and characterized. Alkyl groups at the 2,6‐positions of the scaffold were introduced for solubility, but were found to also prevent π stacking with this scaffold. Whereas a simple thienyl does not affect the overall photophysics of the dithienophosphole, the installation of terthienyl units creates a considerable subchromophore that can communicate through the phosphole‐typical σ*–π* orbital interaction with the main scaffold. The overall architecture of the terthienyl was also found to have a significant impact on the photophysics of the system. Although a heavily twisted, branched terthienyl does not allow for any intermolecular π‐stacking interaction, the exposed nature of a linear terthiophene does, and gives rise to the formation of excimers in solution, as evident in shifted emission properties as a function of the concentration. Time‐dependent DFT calculations have revealed that in this case, the terthienyl group becomes the main chromophore and the dithienophosphole only plays a supportive role.
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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) | 0.002 | 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 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".