Aurophilicity and Photoluminescence of (6‐Diphenylpnicogenoacenaphth‐5‐yl)gold Compounds
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Bibliographic record
Abstract
The organotin precursors 6‐Br‐Ace‐5‐SnBu 3 ( 6 , Ace = acenaphthyl) and 6‐Ph 2 E‐Ace‐5‐SnBu 3 ( 7a : E = P; 7b : E = As; 7c : E = Sb) were prepared and used for the synthesis of organogold complexes, namely, the homodinuclear arylgold(I) species (6‐Ph 2 E‐Ace‐5‐Au) 2 ( 8a : E = P; 8b : E = As; 8c : E = Sb), arylgold(III) dichloride 6‐Ph 2 P‐Ace‐5‐AuCl 2 ( 9 ), diarylgold(III) chloride [ trans ‐(6‐Ph 2 P‐Ace‐5‐) 2 Au]Cl ([ 10 ]Cl), as well as the heterodinuclear gold complexes 6‐Ph 2 P(AuX)‐Ace‐5‐Au(AsPh 3 ) ( 11a : X = Cl; 11b : X = Br). Compounds 8a ‐ 8c , 11a , and 11b show significant aurophilic interactions, which are related to their photoluminescence upon exposure to UV light. In the solid state, 11a and 11b show green‐yellow emission, whereas 8a ‐ 8c are non‐emissive. In solution under an argon atmosphere, all five compounds 8a ‐ 8c as well as 11a and 11b show green‐yellow emission. The organogold complexes were characterized by multinuclear NMR spectroscopy, photoluminescence spectroscopy, single‐crystal X‐ray crystallography, as well as (TD‐)DFT calculations including real‐space bond indicators derived from atoms‐in‐molecules (AIM), the electron localization indicator (ELI‐D), and the non‐covalent interaction (NCI) index.
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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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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