Understanding the Regioselective and Molecular Mechanism of the TCE in Cycloaddtion Reaction (TCE+Cp) and Addition Reaction (TCE+HCl) using DFT calculation
Bibliographic record
Abstract
The polar Diels-Alder (P-DA) reaction of TCE (2,3-Dicyano-but-2-enedinitrile), diene Cp, toward Bicyclo(2. 2. 1)hept-5-ene-2, 2, 3, 3-tetracarbonitrile , was theoretically studied using DFT methods at the B3LYP/ 6-31G(d) level and 6-31G(d,p) in the presence of water. Calculated relative enthalpy associated with the two feasible reactive channels indicate that this P-DA cycloaddition takes place via C2-C3 regioselectivity, furnishing a formal (4+2) P1 in excellent agreement with experimental outcomes. In the considered P-DA reaction, while C2-C3 regioselectivity can be explained using calculated Parr functions at the interacting sites of reagents. In addition, Hydrochloric acid does not react with the TCE (2,3-Dicyano-but-2-enedinitrile) due to the high activation energy of this reaction.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.006 | 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".