Synthesis, characterization, volatility, and thermal stability of fluorinated copper(II) aminoalkoxide complexes as potential vapour deposition precursors
Why this work is in the frame
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Bibliographic record
Abstract
The sodium aminoalkoxides Na[OCR(CF 3 )CH 2 NMeR′] {R = H, R′ = Me (1a); R = R′ = Me (1b); R = CF 3 , R′ = Me (1c); R = Me, R′ = Et (1d); R = CF 3 , R′ = Et (1e)} were synthesized by reaction of the corresponding fluorinated epoxide {OCH 2 CR(CF 3 ); R = H (A), Me (B), CF 3 (C)} with a secondary amine (HNMe 2 or HNMeEt), followed by deprotonation with sodium hydride. Compounds 1a–e were isolated as white powders and characterized by combustion elemental analysis and NMR spectroscopy. Epoxides A and C are commercially available, while epoxide B was prepared by in situ deprotonation and alkylation of A. Reactions of 1a–e with copper(II) chloride in THF afforded [Cu{OCR(CF 3 )CH 2 NMeR′} 2 ] {R = H, R′ = Me (2a); R = R′ = Me (2b); R = CF 3 , R′ = Me (2c); R = Me, R′ = Et (2d); R = CF 3 , R′ = Et (2e)}; compounds 2b and 2c have previously been reported but not structurally characterized, while 2a, 2d, and 2e are new to this report. All copper(II) compounds were characterized by combustion elemental analysis and single crystal X-ray crystallography. The physical properties of 2a–e were also evaluated using thermogravimetric analysis, melting point, and sublimation (at 5 mTorr) data, with comparison to previously reported non-fluorinated [Cu{OCHMeCH 2 NMe 2 } 2 ] (III; [Cu(dmap) 2 ]).
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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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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