Understanding the Formation of Elemental Germanium by Thermolysis of Sol-Gel Derived Organogermanium Oxide Polymers
Bibliographic record
Abstract
Thermolysis of organogermanium oxide sol-gel polymers yields germanium oxide-embedded germanium nanocrystals. In the present study, we investigate the influence of different organic substituents, R, on the sol-gel chemistry of organotrichloro- and organotrialkoxygermane precursors and the thermal behavior of the resulting organogermanium oxides (RGeO 1.5 ) n . The organic substituent affects the structure of the sol-gel product, with bulky R groups hindering network polymer formation. Cage-like sol-gels formed in the presence of bulky substituents are volatile, while network polymers experience thermolytic cleavage of the Ge–C bond. This cleavage produces a Ge-rich oxide (GeO 1.5 ) n, that undergoes thermally induced disproportionation into GeO 2 and elemental Ge. The onset temperature of the disproportionation reaction is profoundly influenced by the nature of the organic substituent. We propose the change in onset temperature arises from a shift in R-group cleavage pathways from radical to β-hydride elimination.
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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 | 0.000 | 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) | 0.002 | 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 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".