Low symmetry Pincer Ligands designed for applications in coordination chemistry and catalysis
Bibliographic record
Abstract
Pincer ligands are monoanionic, tridentate binding molecules that have been used in coordination chemistry as efficient homogeneous and heterogeneous catalysts (i.e. as transition metal complexes). The focus of this work lies in the synthesis, characterization and coordination chemistry of a series of novel asymmetric potentially monoanionic NN'N", NN'C and NN'P type pincer ligands with amide functionality derived from the skeleton of 2-(2'-anilinyl)-4,4-dimethyl-2-oxazoline. Modular approach to this synthesis has been developed through an alkyl halide intermediate, in addition to the substrate-dependent alternative pincer syntheses, which are also described. The coordination chemistries of Pd and Ni, as well as the potential application of these pincer complexes in metal mediated catalysis of aldehyde allylation reactions will be explored. Moreover, a number of Pd(II) pincer complexes have been successfully synthesized and structurally characterized and these results are likewise described.
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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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".