Visible and Near‐IR Emissions from <i>k</i><sup>2</sup><i>N</i>‐ and <i>k</i><sup>3</sup><i>N</i>‐Terpyridine Rhenium(I) Assemblies Obtained by an [<i>n</i>×1] Head‐to‐Tail Bonding Strategy
Bibliographic record
Abstract
Abstract An [n×1] head‐to‐tail bonding strategy has been used for the synthesis of ReI metallacycles. From a k3N‐dicarbonyl precursor, a single discrete [4×1] square assembly was isolated and characterized, whereas a k2N‐tricarbonyl precursor led to two major species, a square and a [3×1] triangular assembly. Solid‐state X‐ray diffraction study has confirmed the high angular distortion (71° to 96°) of the k2N precursors. The electrochemical reversibility of the triangular (5) and square (6, 7) assemblies is increased with respect to that of their precursors. Photophysical investigation has confirmed pronounced red‐shifts in the emissions of the k3N‐dicarbonyl species 4 (935 nm) and 7 (980 nm), as confirmed by density functional theory (DFT) and time‐dependent DFT (TD‐DFT) calculations.
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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) | 0.000 | 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 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".