Reaction products of diorganotin(IV) oxides, R<sub>2</sub>SnO, with nitric acid. Part 1: R = methyl, ethyl, and isopropyl
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Bibliographic record
Abstract
The reaction of diorganotin(IV) oxides, R 2 SnO with R = Me, Et, and i-Pr, with nitric acid in different stoichiometric ratios resulted in the formation of different products depending on the organic groups. The diorganotin(IV) nitrate hydroxides Me 2 Sn(NO 3 )(OH) (1a) Et 2 Sn(NO 3 )(OH), α-1b, β-1b, i-Pr 2 Sn(NO 3 )(OH) (1c), the diisopropyltin(IV) dinitrate dihydrate, i-Pr 2 Sn(NO 3 ) 2 ·2H 2 O (2c) and the diisopropyltin(IV) nitrate oxalate dihydrate, [i-Pr 2 Sn(NO 3 )] 2 Ox·2H 2 O (3) as side-product. On examination of the solubility of the primary reaction products in different solvents, the two additional compounds Me 2 Sn(NO 3 )(OH)·DMSO (4) and 2i-Pr 2 Sn(NO 3 ) 2 ·3DMSO = [i-Pr 2 Sn(NO 3 )(dmso) 3 ] [i-Pr 2 Sn(NO 3 ) 3 ] (5) have been isolated. All compounds have been structurally characterized by single crystal X-ray diffraction with special respect to dimensionality (1a, α-1b, 1c = dimeric molecules hydrogen bonded to one-dimensional chains; β-1b = two-dimensional coordination polymer; 2c = monomeric; 3 = monomeric, tin atoms linked via a double side-on chelating oxalate ion; 4 = dimeric, 5 = monomeric anion/cation), tin coordination (trigonal-bipyramidal = 1a, α-1b, 1c; six-fold = β-1b; seven-fold = 3, 4, 5-cation; eight-fold = 2c, 5-anion) and nitrate bonding modes (monodentate = 1a, α-1b, 1c; unsymmetrical bidentate = 3, symmetrical bidentate = 3, 4, 5-cation, 5-anion; syn-anti bridging = β-1b), the latter one being analysed 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