Rings and Clusters Containing Polyimido and Imido/Oxo Anions of Group 13–15 Elements
Bibliographic record
Abstract
The dilithio boraamidinates {Li2[RB(NtBu)2]}x (R = Me, nBu) are obtained by the reaction of B[N(H)tBu]3 with 3 equivalents of LiR. The X-ray structures of the dimer (R = nBu) and trimer (R = Me) consist of distorted Li4N4 cubes or Li6N6 hexagonal prisms capped by two or three BR groups, respectively. The lithiation of the dimers {M[N(H)tBu]3}2 (M = Al, Ga) with LiR (R = tBu, Me) gives rise to complexes of the type {Li[Al(NtBu)(NHtBu)2]}2(LiR) [R = tBu, N(H)tBu] in which monomeric LitBu or LiN(H)tBu units are trapped by the dilithiated M2N6 template. The centrosymmetric dimer {THF Li3[Si(NiPr)3(NHiPr)]}2, formed by trilithiation of Si[N(H)iPr]4 with LinBu, forms a bicapped hexagonal prism. The tetraazasilicate (Et2O-Li)4[Si(Nnaph)4] is prepared by the reaction of SiCl4 with 4 equiv. of Li2(Nnaph). Treatment of OP[N(H)tBu]3 with an excess of LinBu yields the dilithiated derivative {(THF)Li2[OP(NtBu)2(NHtBu)]}2 with a box-shaped structure.
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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) | 0.000 | 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) | 0.003 | 0.001 |
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".