High-resolution gas phase P L-edge photoabsorption spectra of PF<sub>5</sub>
Bibliographic record
Abstract
High-resolution photoabsorption spectra of P 2s and 2p levels of PF5 are reported. Fine structure, due to spin-orbit and ligand field splittings together with strong vibrational progression, is resolved in the Rydberg region of the P 2p spectrum. A ligand field splitting of 31 meV for the 2p3/2 orbital is obtained from the fit of the Rydberg transitions. The Franck–Condon fit analysis revealed that the vibrational progression of the higher Rydberg states is different from that of the valence-Rydberg mixed 4s state. In particular, we derived a decrease in P–F bond distances of 12 and 28 pm for the 4s valence-Rydberg mixed state and the high nl Rydberg states, respectively. The natural linewidths of the P 2p levels were determined to be 55 meV.Key words: PF5, Rydberg state, vibrational, ligand field splitting, photoabsorption.
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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 | 0.000 |
| Insufficient payload (model declined to judge) | 0.005 | 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".