Synthesis, Crystal Structure, and Magnetism in Fluoride Sulfates, A<sub>2</sub>VF<sub>3</sub>(SO<sub>4</sub>) (A = K, Rb, Cs)
Bibliographic record
Abstract
Three novel alkali metal vanadium(III) fluoride sulfates, A 2 VF 3 (SO 4 ) (A = K, Rb, Cs), were prepared through hydrothermal redox reactions. The products were isostructural with previously reported K 2 MnF 3 (SeO 4 ) and featured one-dimensional chains of trans -VF 4 O 2 octahedra that were connected by μ2-bridging oxygen atoms with SO 4 units. In the title compounds, spin chains of V 3+ ( S = 1) with trans V–F–V bridges were arranged in a two-dimensional rectangular lattice. DC magnetization showed unpredictable ferromagnetic-like ordering at ∼0.6 K, accompanied by a weak hysteresis curve. At high temperatures, the dominant magnetic interactions were found to be antiferromagnetic, as deduced from the negative values of the Curie–Weiss temperature.
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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) | 0.000 | 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".