A Homoleptic KrF<sub>2</sub> Complex, [Hg(KrF<sub>2</sub>)<sub>8</sub>][AsF<sub>6</sub>]<sub>2</sub>⋅2 HF
Bibliographic record
Abstract
Abstract The reaction of Hg(AsF 6 ) 2 with a large molar excess of KrF 2 in anhydrous HF has afforded the first homoleptic KrF 2 coordination complex of a metal cation, [Hg(KrF 2 ) 8 ][AsF 6 ] 2 ⋅2 HF. The [Hg(KrF 2 ) 8 ] 2+ dication is well‐isolated in the low‐temperature crystal structure of its HF‐solvated [AsF 6 ] − salt, and consists of eight KrF 2 molecules that are terminally coordinated to Hg 2+ by means of Hg−F(KrF) bonds to form a slightly distorted, square‐antiprismatic coordination sphere around mercury. The Raman spectrum of [Hg(KrF 2 ) 8 ] 2+ was assigned with the aid of calculated gas‐phase vibrational frequencies. Computational studies indicate that both electrostatic and orbital interactions are important for metal–ligand bonding and provide insight into the geometry of the [Hg(KrF 2 ) 8 ] 2+ cation and the nature of noble‐gas difluoride ligand bonding.
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How this classification was reachedexpand
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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.002 | 0.003 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.002 | 0.003 |
| Insufficient payload (model declined to judge) | 0.001 | 0.003 |
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; both teacher heads agree on what is shown here.
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".