Bibliographic record
Abstract
Complexes of formula TiCp(NPR3)(NMe2)2 (R = t-Bu 1, Ph 2) were prepared via salt metathesis of TiCp(NPR3)Cl2 with a slight excess of LiNMe2. The species Ti(NP-t-Bu3)(NMe2)3 (3) was obtained as a by-product. The related derivative ZrCp(NP-t-Bu3)(NMe2)2 (4) was also prepared. Reaction of TiCp(NP-t-Bu3)Cl2 with LiNHC6H3(2,6-i-Pr2) afforded TiCp(NP-t-Bu3)(NHC6H3(2,6-i-Pr2))Cl (5) and Ti(NP-t-Bu3)(NHC6H3(2,6-i-Pr2))3 (6). In a similar manner, the Zr analogs ZrCp(NP-t-Bu3)(NHC6H3(2,6-i-Pr2))Me (7) and ZrCp(NP-t-Bu3)(NHC6H3(2,6-i-Pr2))2 (8) were also prepared. X-ray structural data for compounds 5, 6, and 8 are reported. Reactivity of these phosphinimideamide derivatives was explored. While these species do not yield imide derivatives upon thermolysis, reaction of 5 with excess AlMe3 afforded TiCp(NP-t-Bu3)Me2 while reaction with 1 equiv. of AlMe3 gave TiCp(NP-t-Bu3)MeCl (9) and Al2(m-NHC6H3(2,6-i-Pr2))2Me4 (10). Key words: titanium, zirconium, phosphinimide, amide, ligand metathesis.
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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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".