Nano‐Nonanuclear Mixed‐Lanthanide Clusters [Eu<sub>9–<i>x</i></sub>Tb<i><sub>x</sub></i>] Featuring Tunable Dual Luminescence Properties
Bibliographic record
Abstract
Five Tb 3+ /Eu 3+ mixed nonanuclear clusters with the general formula [Eu 9– x Tb x (acac) 16 (µ 3 ‐OH) 8 (µ 4 ‐O)(µ 4 ‐OH)] ([Eu 9– x Tb x ], x = 0.9–8.1, acac = acetylacetonate) were synthesized. Characterization by powder X‐ray diffraction (PXRD), energy‐dispersive X‐ray spectroscopy (EDS) and inductively coupled plasma optical emission spectroscopy (ICP‐OES) highlight a near‐perfect match between the amounts of Tb 3+ and Eu 3+ ions input in the reaction mixture and the amounts in the clusters. The luminescence properties of these [Eu 9– x Tb x ] clusters were investigated thoroughly in the solid state, and a strong energy transfer from the Tb 3+ to Eu 3+ emitters was evidenced. Thus, these nano‐nonanuclear 4f clusters, which can be viewed as square pyramids that share one top, exhibit dual luminescence that can be adjusted by controlling the ratio of the lanthanide ions within the crystal architecture.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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; a candidate call from one teacher head, 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".