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 distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| 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; both teacher heads agree on what is shown here.
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".