Transition metal complexes of a sterically demanding diimine ligand
Bibliographic record
Abstract
The reaction of the metal halide with the sterically demanding ligand (i-Pr 2 C 6 H 3 N)(C(Me)(NC 6 H 3 -i-Pr 2 )) 2 afforded the complexes (i-Pr 2 C 6 H 3 N)(C(Me)(NC 6 H 3 -i-Pr 2 )) 2 MX 2 (X = Cl, M = Fe (2), Co (3); X = Br, M = Ni (4), M = Cu (5), Zn (6)). The species of 2 reacts with Li(OEt 2 )B(C 6 F 5 ) 4 to form the yellow adduct [(i-Pr 2 C 6 H 3 N)(C(Me)(NC 6 H 3 -i-Pr 2 )) 2 Fe(µ-Cl) 2 Li(OEt 2 ) 2 ][B(C 6 F 5 ) 4 ] (7) while alkylation of 2 gave (i-Pr 2 C 6 H 3 N)(C(Me)(NC 6 H 3 -i-Pr 2 )) 2 FeClCH 2 SiMe 3 (8). The species [(i-Pr 2 C 6 H 3 N)(C(Me)(NC 6 H 3 -i-Pr 2 )) 2 Ni(η 3 -C 3 H 5 )][B(3,5-CF 3 C 6 H 3 ) 4 ] (9) was obtained from reaction of 1 with [(η 3 -C 3 H 5 )NiBr] 2 and [Na][B(3,5-(CF 3 ) 2 C 6 H 3 ) 4 ] while reaction of 4 with Super-Hydride afforded (i-Pr 2 C 6 H 3 N)(C(Me)(NC 6 H 3 -i-Pr 2 )) 2 NiH 2 BEt 2 (10). X-ray data are reported for 210. The sterically demanding nature of the ligand inhibits subsequent reactivity of these species. Key words: sterically demanding ligands, chelate complexes, X-ray structure, diimine ligands.
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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) | 0.014 | 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".