Bibliographic record
Abstract
The infrared spectra of five distinct species of N2O–hydrogen van der Waals complexes (N2O–paraH2, –orthoH2, –orthoD2, –paraD2, and –HD) were studied in the region of the ν1 fundamental band of N2O (≈2224 cm−1) by tunable diode laser spectroscopy in a pulsed supersonic jet expansion. The spectra corresponded to those of T-shaped asymmetric rotors with mainly a-type transitions (ΔKa=0), plus weaker b-type transitions (ΔKa=±1) in the case of N2O–D2. They were analyzed using a conventional Hamiltonian with quadratic centrifugal distortion parameters. The fitted rotational parameters were consistent with structures having intermolecular separations between 3.25–3.4 Å and angles of about 80° between the N2O axis and the hydrogen center-of-mass. These intermolecular distances are about 0.3 Å shorter than those observed previously for the related system, OCS–hydrogen. The band origins were blueshifted relative to the free N2O molecule by from +0.25 to +0.79 cm−1. These vibrational shifts showed regularities among the different spin and isotopic forms of hydrogen that were analogous to those in OCS–hydrogen.
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 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".