Fluorescein-Nano TiO_2 Interface Complexion and Photo-Induced Electron Transfer
Bibliographic record
Abstract
This paper reports the complexion of TiO2 with fluorescein dianion(F2-) in ethanol-water under neutral pH condition.We found that F2--TiO2 complex showed very different spectral behavior from that of H3F+-TiO2 formed under strong acidic system.F2--TiO2 is 30 nm red shifted in absorption,it also emits fluorescence.The binding constant of the complex was measured to be 470 L·mol-1 by UV-Vis absorption spectrum.The fluorescence quantum yield(Φf) and fluorescence lifetime(τf) of F2-moiety in the complex were measured to be 0.14 and 1.08 ns by steady state and time-resolved fluorescence spectrometer,respectively,remarkably reduced from that of free F2-(Φf=0.92,τf=4.68 ns) due to photo-induced electron transfer(PET) within the complex.PET is highly favored by the thermodynamic driving force(ΔG=-1.1 eV).The rate constant of PET is 7.1×108 s-1,which is three times larger than other competitive processes.PET efficiency is calculated to be 77%.
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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) | 0.001 | 0.001 |
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".