Bibliographic record
Abstract
Reaction of two equivalents of the lithium salt of N, N ′-dibenzyl-2-amino-4-iminopent-2-ene, nacnac Bn Li(THF), 1, with CrCl 3 (THF) 3 or CrCl 3 yielded nacnac Bn 2 CrCl as a putative intermediate, which could be trapped by addition of 2,6-xylyl isocyanide to give the isocyanide-coordinated, octahedral complex nacnac Bn 2 CrCl(CNC 6 Me 2 H 3 ), 5 . In the absence of isocyanide, ligand redistribution to the homoleptic tris(diketiminate) complex nacnac Bn 3 Cr, 3, occurred upon concentration, standing, or workup with apolar solvents. Workup with diethyl ether afforded the bimetallic-bridged complex nacnac Bn 2 Cr(μ-Cl) 2 Li(THF) 2, 6 . Reaction of CrCl 3 (THF) 3 with one equivalent of 1 afforded the monodiketiminate complexes { nacnac Bn CrCl(THF)(μ-Cl)} 2 or { nacnac Bn CrCl(μ-Cl)} 2, depending on reaction conditions. Reaction of CrCl 2 (THF) x with two equivalents of 1 gave rise to nacnac Bn 2 Cr, 4 . Complexes 3 − 6 were characterized by X-ray diffraction studies. All octahedral complexes display a cis geometry with two nacnac ligands in a distorted, boat-like conformation.
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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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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".