Probing the Locations of Benzene Molecules Inside Completely Siliceous ZSM-5 by FT−Raman Spectroscopy
Bibliographic record
Abstract
The locations of benzene molecules inside completely siliceous ZSM-5 at various loading levels were determined from FT−Raman spectra of benzene adsorbed in ZSM-5. In the low loading range (1−4 molecules/u.c.), all of the guest molecules reside at the channel intersections. In the intermediate loading range (5 and 6 molecules/u.c.), four benzene molecules are located at the intersections, while the remaining guest molecules access the zigzag channel segments. In the high loading range (7 and 8 molecules/u.c.), four guest molecules remain at the intersections and the rest of the benzene molecules move to the midsections of the straight channels. The changes in the Raman spectra of both sorbate and sorbent clearly indicate that the host framework undergoes two successive phase transitions at the loadings of 5 and 7 molecules/u.c., respectively. The zeolitic framework vibrations also indicate that there are very strong interactions between the guest molecules and the host framework in the high loaded phase.
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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) | 0.001 | 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".