Temperature‐dependent Raman and infrared spectra of nucleosides. III—deoxycytidine
Bibliographic record
Abstract
Abstract Raman and infrared spectra were recorded for crystalline deoxycytidine samples at 300, 200, 100 and 10 K. Data were taken over the spectral range 20–4000 cm −1 . The wavenumbers of most vibrational modes were found to increase as the temperature was lowered. A number of peaks split into multiplets at low temperature. A new mode, observed at 375 cm −1 , is a marker band for 2 ′ ‐deoxyribose in cytosine‐containing nucleic acids. Evidence is presented supporting the assignment of marker bands associated with the C3 ′ ‐ endo and C2 ′ ‐ endo puckers of deoxyribose. No clear indication was found of any structural phase transitions in this temperature range. Several hydrogen‐stretching modes were found to involve hydrogen bonding. Plausible assignments of all the main features observed are suggested. Copyright © 2003 John Wiley & Sons, Ltd.
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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".