Molecular Orientation and Electrochemical Stability of Azobenzene Self-Assembled Monolayers on Gold: An In-Situ FTIR Study
Bibliographic record
Abstract
The relationship between the physical properties of azobenzene self-assembled monolayers (SAMs) on gold surfaces (C n H 2 n +1 O φ N N φ C(O)NHC m H 2 m S Au, abbreviated as C n AzoC m S−Au) and the structural nature of the parent alkanethiol molecules was investigated by electrochemical in-situ Fourier transform infrared reflection/absorption spectroscopy (FTIR−RAS). The 2H +, 2e - redox behavior from azobenzene to hydrazobenzene in C n AzoC m S−Au monolayers was confirmed, as reported in our recent paper ( Langmuir 1998, 14, 619−624). The in-situ spectra showed unambiguously that the molecular orientation and electrochemical stability of azobenzene SAMs are highly related to the structural nature of the azobenzene alkanethiols. In particular, the longer the alkyl chains in the azobenzene alkanethiols, the more stable and closely packed are the monolayers. A potential-induced orientational switching of the terminal ethoxy group was observed for C2AzoC4S−Au, which is different from the intermolecular hydrogen-bonding “fixed” alkyl chain below the azobenzene moiety.
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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) | 0.000 | 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) | 0.000 | 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".