ANALYSIS OF COMBINED MILLIMETER-WAVE AND HIGH-RESOLUTION INFRARED SPECTRA OF 2- AND 3-FURONITRILE
Bibliographic record
Abstract
2-Furonitrile and 3-furonitrile are highly polar CN-substituted derivatives of furan.These molecules are attractive targets for interstellar search due to their strong dipole moments (µ a = 4.3 D, µ b = 0.7 D and µ a = 4.0 D, µ b = 0.4 D, respectively) and their ability to serve as tracer molecules for furan.In our recent work, we analyzed and assigned the millimeter-wave and high-resolution infrared (IR) spectra of 2-and 3-furonitrile for the first time.From 140-750 GHz and 140-500 GHz, respectively, the vibrational ground-state transitions of each molecule have been least-squares fit to partial octic, distorted-rotor Hamiltonians with each data set containing several thousand independent transitions.The two lowest-energy fundamental modes of both furonitriles are the Coriolis-coupled bending modes of the nitrile (ν 17 and ν 24 ).High-resolution infrared spectra were obtained from the Canadian Light Source and provided the precise band origins of these modes for both furonitriles, as well as of ν 23 for 2-furonitrile.We recently reported our work on 2-furonitrile [1] and will discuss our progress in the analysis of the ground state and first two fundamental modes of 3-furonitrile.[1] Millimeter-Wave and High-Resolution Infrared Spectroscopy of 2-Furonitrile -A Highly Polar Substituted Furan.
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) | 0.000 | 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 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".