Condensed versus open channel structures in cysteic acid coordination frameworks containing d<sup>10</sup>-d<sup>10</sup> dimers
Bibliographic record
Abstract
Single crystal X-ray structures have been obtained for [Ag(L-cysteic acid)][Formula: see text] (1) and [Ag(L-cysteic acid)(H2O)][Formula: see text] (2) These compounds represent the first two structurally characterized complexes of cysteic acid. Network 1 is shown to adopt an infinite two-dimensional structure, describable as one-dimensional ribbons cross-linked into layers. The basic building block is a doubly carboxylate-bridged silver(I) dimer. Compound 1 crystallizes in the monoclinic space group P21 (a = 5.5066(3) Å, b = 7.5761(4) Å, c = 16.644(1) Å, β = 94.335(1)°). Compound 2, while differing chemically from 1 by only one water molecule, forms a three-dimensional structure built upon the same core dimer unit as that observed in 1. In 2, these units assemble in a different manner via the weak interactions and form a channel structure in which the guest water molecules are included. Compound 2 crystallizes in the monoclinic space group P21 (a = 8.120(2) Å, b = 9.805(2) Å, c = 9.204(2) Å, β = 98.45(3)°).Key words: silver, carboxylates, sulfonates, coordination polymer.
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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 | 0.001 | 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".