The reactions of carbon disulfide and sulfur dioxide with small carboxylate anions
Bibliographic record
Abstract
In one form or another both acid gases and carboxylates have existed from prebiotic earth all the way to the present day.Here we have studied the reactions of carbon disulfide (CS 2 ) and sulfur dioxide (SO 2 ) with naked carboxylate anions (RCOO -) to observe the types of interactions possible.The reaction of CS 2 with acetate (CH 3 COO -) in acetonitrile under an inert atmosphere proceeded via an exchange mechanism.This produced carbonyl sulfide gas (COS) and a thioacetate salt, which was characterized by X-ray crystallography.On the other hand, under the same conditions, the reaction of SO 2 with formate (HCOO -) created a radical sulfur species.Overall, this led to the isolation of H 2 and CO 2 gases and to the formation of a number of possible S x O y n-species.Both reactions are thermodynamically stable enough to occur when salts of the anions, with large, noncoordinating cations, are exposed to the acid gases.The variety and biological importance of the products produced in these simple reactions show that their study may still hold many interesting and important new findings.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| 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".