Reaction products of diorganotin(IV) oxides, R<sub>2</sub>SnO, with nitric acid. Part 2 – R = <i>n</i>-butyl and <i>t</i>-butyl
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Bibliographic record
Abstract
The reaction of diorganotin(IV) oxides, R 2 SnO with R = n-butyl and t-butyl, with nitric acid in different stoichiometric ratios resulted in the formation of different products depending on the organic groups attached to the tin atom: the diorganotin(IV) dinitrate dihydrates, n-Bu 2 Sn(NO 3 ) 2 ·2H 2 O (2d) and t-Bu 2 Sn(NO 3 ) 2 ·2H 2 O (2e), the mixed diorganotin(IV) nitrate methoxide oxide n-Bu 2 Sn(NO 3 )(n-Bu 2 SnOMe)O (6), and the diorganotin(IV) nitrate hydroxide hydrate t-Bu 2 Sn(NO 3 )(OH)·H 2 O = [t-Bu 2 Sn(OH)(H 2 O)][NO 3 ] (7). On examination of the solubility of the primary reaction products in different solvents, the three additional compounds t-Bu 2 Sn(NO 3 )(OH)·DMSO (8), t-Bu 2 Sn(NO 3 )(OH)·THF, and 2-t-Bu 2 Sn(NO 3 )(OH)·DMF = [t-Bu 2 Sn(OH)dmf] 2 [NO 3 ] 2 ·[t-Bu 2 Sn(NO 3 )OH] 2 (9) could be isolated. All compounds have been structurally characterized by single crystal X-ray diffraction (primary results for 7) with special attention paid to dimensionality (2d and 2c = monomeric, hydrogen bonded molecules; 6 = dimeric molecules of ladder-type structure; 7 = dimeric cation; 8 = dimeric molecule with hydrogen bonded solvent molecules; 9 = both components dimeric), tin coordination (6, 7, 8, and 9 = trigonal bipyramidal; 2d and 2e = eightfold), and nitrate bonding modes (7 and 9 = isolated, hydrogen bonded; 6, 8, and 9 (component 2) = monodentate; 2d and 2e = symmetrical bidentate), the latter one being analyzed using both Sn–O and N–O distances.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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) | 0.000 | 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 it