A Platinum(II) Extended Linear Chain Material That Selectively Uptakes Benzene
Bibliographic record
Abstract
cis -Bis(isopropyl isocyanide)dicyanoplatinum(II), Pt II (CN- i -C 3 H 7 ) 2 (CN) 2, has been synthesized, and its solid-state characteristics have been investigated. X-ray crystallographic data show that Pt II (CN- i -C 3 H 7 ) 2 (CN) 2 forms an extended linear chain (ELC) material in the solid state that is yellow and luminescent. Exposure of crystalline films of Pt II (CN- i -C 3 H 7 ) 2 (CN) 2 to benzene vapor leads to a solid-state luminescence color change from yellow to blue and a loss of crystallinity. Single-crystal X-ray data obtained for a benzene solvate of Pt II (CN- i -C 3 H 7 ) 2 (CN) 2 suggest that the luminescent blue form observed in the thin film results from a structural rearrangement. In the benzene solvate single crystal the lattice is changed from a staggered to an eclipsed ELC material in which the unit cell has expanded by 20% in volume and contains one benzene molecule for every two Pt II (CN- i -C 3 H 7 ) 2 (CN) 2 molecules. The selectivity, kinetics, and reversibility of this transformation have been studied to determine if crystalline films of Pt II (CN- i -C 3 H 7 ) 2 (CN) 2 would make a useful benzene sensor.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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 | 0.000 |
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 teacher head, 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".