Optimal Wavelengths and Solvents to Modulate Diazirine Kinetics
Bibliographic record
Abstract
Diazirine photolysis generates reactive carbene species, useful for indiscriminate cross-linking and insertion reactions with amino acids and polyolefins. However, methods to increase the carbene efficiency and limit the benign diazoalkane intermediate remain uncharted. Herein, we correlate diazirine depletion to common experimental parameters such as LED wavelength, temperature, solvent, and grafted functional groups. Broad wavelength activation impeded the formation of diazoalkane, presenting a light-based method to limit this yellow-inducing intermediate. Kinetics rate (per joule) values of diazirine depletion and diazoalkane generation served as the performance metric, permitting comparisons across all parameter variables. Photokinetics were independent of temperature from 25 to 70 °C. Highest rates were found in ester-containing solvents and ether conjugated diazirine. Overall, the novel irradiation arrangement reduces the reliance on UVA for photoactivation and increases the efficiency of diazirine as a carbene precursor.
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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 | 0.000 |
| 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) | 0.000 | 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".