Characterization of Photoproducts of <i>m</i>‐THPP in Aqueous Solution<sup>¶</sup>
Bibliographic record
Abstract
ABSTRACT This study examined the nature of photoproducts after pulse laser irradiation (647.5 nm) of 5,10,15,20‐tetrakis( meso ‐hydroxyphenyl)porphyrin ( m ‐THPP) (10 μmol/L) in ethanol‐water (1/99, vol/vol) solution. Spectroscopic measurements (UV‐visible absorption and fluorescence) and mass spectrometry techniques (matrix‐assisted laser desorption‐ionization [MALDI] coupled with time‐of‐flight mass spectrometer [TOF‐MS] or tandem time of flight mass spectrometer [TOF/TOF‐MS]) were used to follow photomodifications. Spectroscopic measurements evidenced photomodification as the main process after m ‐THPP irradiation. Three oxidized photoproducts at m/z 693.25, 695.24 and 713.25 were characterized by MS. After prolonged irradiation new isotopic distributions were registered at m/z 1355.41, 2031.57, 2707.80 and 3383.98 with MALDI‐TOF‐MS and TOF/TOF‐MS. These new photoproducts were attributed to covalent oligomeric structures as dimer, trimer, tetramer and pentamer of m ‐THPP.
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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) | 0.000 | 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".