Effect of Substitution on the Electrochemical and Xerographic Properties of Triarylamines: Correlation to the Hammett Parameter of the Substituent and Calculated HOMO Energy Level
Bibliographic record
Abstract
It has been found that both the electrochemical and xerographic properties of a series of triarylamines vary with the nature (quantified by its Hammett parameter, σ) and the frequency of substituents that make up a triarylamine. Three series of triarylamines, encompassing a total of 35 compounds, have been synthesized by Ullman condensation of an appropriately substituted aniline with an excess of an appropriately substituted iodophenylene by a published procedure [Goodbrand, H. B.; Hu, N. X. J. Org. Chem. 1999, 64 (2), 670−674]. The xerographic properties, including transport properties, of a select number of compounds have been measured as solid-state solutions in polycarbonate-Z. The recorded xerographic properties varied with the measured oxidation potential ( E 1/2 ) of the molecule, which in turn correlates to both the Hammett parameter of the substituent and the calculated HOMO energy level of the triarylamine.
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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 | 0.001 |
| 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 | 0.000 |
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 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".