Hydrothermal Synthesis and Characterization of the Melamine‐Based Second‐Harmonic Generation Material HgCl<sub>2</sub>(C<sub>3</sub>N<sub>6</sub>H<sub>6</sub>)
Bibliographic record
Abstract
The pursuit of efficient nonlinear optical materials is critical for advancing optoelectronic applications. This study focuses on the synthesis and characterization of HgCl 2 (C 3 N 6 H 6 ), a melamine‐based hybrid metal halide. Structural analysis reveals a non‐centrosymmetric lattice facilitated by large asymmetric secondary building units and a π‐conjugated system. The compound exhibits a strong second‐harmonic generation efficiency. Density functional theory calculations, optical band gap measurements, and photoluminescence measurements specify the electronic properties. For completeness and analytical comparison, the centrosymmetric compound Hg 2 Cl 2 (C 3 N 6 H 6 ) 2 is also introduced.
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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; 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".