Exploring the functionalization of Ag <sub>20</sub> nanoclusters through cluster surface tetrazine ligation
Bibliographic record
Abstract
Controlled synthesis of atomically precise silver nanoclusters (AgNC) exhibits some challenges due to inferior stability and limited solubility of silver precursors, which impacts their applications. Generating strategies for post-synthesis cluster modification can help expand the current applications and promote the production of hybrid nanomaterials. This approach has recently been explored using Cluster-Surface (CS)-click chemistry; however, the types of CS-click reactions have been limited, mostly to alkyne-azide cycloaddition. The aim of this study is to expand the scope of post-synthesis cluster-surface click chemistries for AgNC by incorporating the inverse electron demand Diels–Alder reaction (IEDDA) as a strategy for cluster surface functionalization. Here, the synthesis and characterization of a carbonate templated Ag 20 NC, [(CO 3 )@Ag 20 (S t Bu) 10 ( exo-C 7 H 9 COO) 8 (DMF) 4 ] (1- n), which bears a norbornene moiety susceptible to functionalization through IEDDA is reported. This study shows the structure of the nanocluster obtained through single crystal X-ray diffraction and characterization of the clicked product after reaction with a model s-tetrazine. This work highlights the versatility of click chemistry and offers a new path for cluster-surface modification.
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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) | 0.000 | 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".