Interaction of hydroxyphenyl alkyl ketones with β-cyclodextrin
Bibliographic record
Abstract
Binding constants of β-cyclodextrin with six hydroxyphenyl alkyl ketones having a general structure Z-Ph-CO-(CH2)nCH3 (Z = o-OH or p-OH and n = 0, 1, or 3) were measured at 25°C by UV-vis spectrophotometry. In all cases the formation of 1:1 host-guest complexes was established. NMR chemically induced shifts indicated mixed complexation modes. Equilibrium constants are around 200 M-1 for some of the compounds and for the others around 1000 M-1. It is suggested that complexes with different geometries coexist in the solution with predominance of those with the aryl group (KSCD [Formula: see text] 200 M-1) or alkyl group (KSCD [Formula: see text] 1000 M-1) inside the cavity.Key words: inclusion complex, β-cyclodextrin, hydroxyphenyl alkyl ketones, association constants, UV-vis spectrophotometry.
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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".