Rare-Earth Germanium Antimonides <i>RE</i><sub>6</sub>Ge<sub>5</sub><sub>-</sub><i><sub>x</sub></i>Sb<sub>11+</sub><i><sub>x</sub></i> (<i>RE</i> = La−Nd, Sm, Gd−Dy). I. Syntheses and Structures
Bibliographic record
Abstract
The ternary rare-earth germanium antimonides RE 6 Ge 5 - x Sb 11+ x ( RE = La−Nd, Sm, Gd−Dy) have been synthesized through direct reaction of the elements at 950 °C, and the structures of the representative members La 6 Ge 2.8(1) Sb 13.2(1) ( a = 4.3034(8) Å, b = 10.851(3) Å, c = 27.073(7) Å), Nd 6 Ge 3.6(1) Sb 12.4(1) ( a = 4.2310(3) Å, b = 10.6362(7) Å, c = 26.526(2) Å), and Gd 6 Ge 4.3(1) Sb 11.7(1) ( a = 4.1509(3) Å, b = 10.4438(7) Å, c = 26.2400(18) Å) have been determined by single-crystal X-ray diffraction. They crystallize in the orthorhombic space group - Immm with Z = 2. The structures consist of columns of Sb-centered face-sharing RE 6 trigonal prisms aligned along [100], separated by interconnecting walls of Ge and Sb atoms. A wide array of Ge−Ge, Ge−Sb, and Sb−Sb interactions is found within these walls, ranging from strong covalent bonds to intermediate one-electron partial bonds to weak van der Waals forces.
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.005 | 0.006 |
| Meta-epidemiology (broad) | 0.004 | 0.002 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.003 | 0.002 |
| Scholarly communication | 0.003 | 0.003 |
| Open science | 0.003 | 0.002 |
| Research integrity | 0.002 | 0.005 |
| Insufficient payload (model declined to judge) | 0.000 | 0.001 |
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".