Dehydrogenation and demethanation of 2-methylpropane and propane in the gas-phase by the 16-electron complex [Ru(bipy)2(CO)]2+* chemically activated by the association of [Ru(bipy)2]2+ and CO
Bibliographic record
Abstract
The reactions of [Ru(bipy)(2)](2+) with 2-methylpropane, propane, and propene have been investigated in the ICR cell of a mass spectrometer. In these reactions, the association of one molecule of each hydrocarbon was observed. When [Ru(bipy)(2)](2+) was ligated with CO, and the newly formed [Ru(bipy)(2)(CO)](2+) was allowed to react with 2-methylpropane and propane both dehydrogenation and demethanation were observed among association and substitution products. Density functional calculations were used to help elucidate the mechanism and the energy requirement for the dehydrogenation and demethanation reactions of 2-methylpropane mediated by [Ru(bipy)(2)(CO)](2+)*. These very interesting elimination reactions of [Ru(bipy)(2)(CO)](2+) are attributed to a hot 16-electron intermediate, [Ru(bipy)(2)(CO)](2+)*, formed upon ligation of [Ru(bipy)(2)](2+) with CO which has no efficient means of dissipating its internal energy in the low-pressure confines of the ICR cell. The reactions were concluded to occur via a concerted elimination mechanism rather than by oxidative addition/reductive elimination following the dissociation of one Ru-N bond.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.001 | 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".