Cover Picture: Ge Pairs and Sb Ribbons in Rare‐Earth Germanium Antimonides <i>RE</i><sub>12</sub>Ge<sub>7−<i>x</i></sub>Sb<sub>21</sub> (<i>RE</i>=La–Pr) (Chem. Asian J. 9/2009)
Bibliographic record
Abstract
Succeeding RE6Ge5−xSb11+x, the ternary rare-earth germanium antimonides RE12Ge7−xSb21 (RE=La–Pr; x=0.4–0.5) represent the next level in an emerging structural series based on assemblies of RE6 trigonal prisms delimited by a polyanionic network of Ge and Sb atoms. The new orthorhombic structure type displays a wealth of bonding motifs, including Ge2 pairs, GeSb3 trigonal planes, and hypervalently bonded GeSb kinked sheets. H. Bie and A. Mar attempt bonding analysis through a Zintl–Klemm approach, which suggests that full electron transfer from the RE atoms to the anionic substructure cannot be assumed. This is confirmed by band-structure calculations, which also reveal the importance of GeSb and SbSb bonding. For the details, turn to their Full Paper on page 1465 ff.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.481 | 0.077 |
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".