The Ã<sup>1</sup> A<sub>2</sub> <sup>1</sup> A<sub>1</sub> system of formaldehyde, H<sub>2</sub>C=0: Reanalysis of the 1<sup>1</sup><sub>0</sub>4<sup>1</sup><sub>0</sub> and 5<sup>1</sup><sub>0</sub> bands
Bibliographic record
Abstract
A frequency-doubled dye laser was used to excite the fluorescence of formaldehyde in the region 31 09931 185 cm1. Using iodine standard lines, the wave numbers of nearly 300 lines of formaldehyde have been determined. Since these lines form only part of the overlapping 110410 and 510 bands of the Ã1A2 [Formula: see text]1A1 system, complete coverage of these bands was obtained using a Fourier-transform spectrometer. Some of the frequency-doubled lines were used as standards. Rotational analysis has been carried out and improved molecular constants obtained. The two bands show a Coriolis interaction. However, while earlier workers found an interaction proportional to Ka, we obtain a cubic dependence on this quantum number.PACS Nos.: 32.30Jc, 33.20Vq
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.006 | 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".