Interpenetrating digold(i) diacetylide macrocycles
Bibliographic record
Abstract
The cyclic dialkynyldigold(I) complexes [1,2-C2H4(O-3-C6H4OCH2CCAu)2(μ-LL)] were prepared by reaction under basic conditions of the dialkyne 1,2-C2H4(O-3-C6H4OCH2CCH)2 with [AuCl(SMe2)] and the corresponding diphosphine ligands LL = Ph2P(CH2)nPPh2 (n = 1–6), trans-Ph2PCHCHPPh2 and Ph2PCCPPh2. The new organometallic macrocycles have ring sizes ranging from 23 to 28 atoms, and the complexes with LL = Ph2P(CH2)4PPh2 and trans-Ph2PCHCHPPh2 have been structurally characterized. In both cases, the digold(I) macrocycles assemble into dimers in the solid state through Au⋯Au aurophilic bonding, with a phenyl group of each macrocycle occupying the cavity of the other. However, this extensive interpenetration occurs without the catenation observed in some similar complexes. The complexes give room temperature emissions above 400 nm in solution and the solid state, and a red shift of approximately 50 nm between emission maxima in the solution and the solid state spectra is suggested to be an indication of the strong interpenetration in the solid state.
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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) | 0.001 | 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".