A Cyclic Fc–Histidine Conjugate: Synthesis and Properties – Interactions with Alkali Metal Ions
Why this work is in the frame
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Bibliographic record
Abstract
Abstract The synthesis of the novel N , N π ‐(ferrocenophane‐1,1′‐diyldicarbonyl)‐bridged histidine methyl ester 1 and of the acyclicbis(histidine methyl ester) derivative 3 are reported. The structure of 1 was studied in the solid state and in solution. The single‐crystal structure of 1 shows that both proximal ferrocenyl (Fc) carbonyl groups are syn with respect to each other, which is a new structural motif for Fc–amino acid conjugates. This new syn conformation allows effective binding to alkali metal cations. Binding is evaluated by cyclic voltammetry monitoring the halfwave potential of the Fc group. Cation binding causes a shift to lower potential (Na + > Li + > K + , Cs + ). Upon binding, compound 1 shows selectivity towards Na + ions. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
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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) | 0.001 | 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 it