Crystal structure and Hirshfeld-surface analysis of 1-(4-fluorophenyl)-3,3-bis(methylsulfanyl)prop-2-en-1-one
Bibliographic record
Abstract
The title compound, C 11 H 11 FOS 2 , is a fluorinated chalcone derivative with potential applications in medicinal chemistry and functional materials. The molecular structure includes a planar 4-fluorophenyl ring linked by a carbonyl group and an ethenyl spacer to an approximately planar bis(methylsulfanyl) moiety (r.m.s. deviations from planarity are 0.0106 and 0.0315 Å, respectively). These planar groups are twisted relative to each other, subtending a dihedral angle of 32.23 (4)°. The crystal packing lacks classical hydrogen bonds or aromatic π-stacking, but molecules are connected through weaker C—H...O and C—H...S contacts into layers parallel to the ab plane and tapes extending along the b -axis direction. The 4-fluorophenyl groups on adjacent tapes interdigitate. Hirshfeld surface analysis shows that the majority (>90%) of intermolecular contacts involve hydrogen atoms.
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 | 0.001 |
| 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) | 0.002 | 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".