High-resolution infrared spectrum and energy levels of the weakly bound complex, CO-orthoD2
Bibliographic record
Abstract
The infrared spectrum of the weakly bound complex CO-orthoD2, which accompanies the fundamental band of CO in the 4.7 μm region, has been recorded at high resolution using a long-path (≈200 m), low-temperature (≈47 K), absorption cell coupled either with a Fourier transform spectrometer or with a tunable infrared diode laser. A total of 275 transitions, constituting most (>85%) of the observed lines, have been rotationally assigned in terms of 83 discrete quantum states of the complex. The positions of most of these energy levels have been accurately determined (<0.001 cm−1) for both the vCO=0 and 1 vibrational states. The binding energy of the complex, relative to the zero-point level, was determined to be about 30 cm−1. Predicted microwave and millimeter wave frequencies are given for the pure rotational spectrum. The energy level pattern derived here, together with that determined previously for the analogous CO-paraH2 complex, provides direct and precise information for testing and refining the intermolecular potential energy surface of the carbon monoxide–hydrogen system.
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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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".