Poly(salphenyleneethynylene)s: A New Class\nof Soluble, Conjugated, Metal-Containing\nPolymers
Bibliographic record
Abstract
Materials.Copper(I) iodide, zinc(II) acetate, nickel(II) acetate, vanadyl acetoacetonate, and 4-bromosalicyaldehyde were obtained from Aldrich.Tetrakis(triphenylphosphine)palladium was obtained from Strem Chemicals, Inc. Deuterated solvents were obtained from Cambridge Isotope Laboratories, Inc. Tetrahydrofuran was distilled from sodium/benzophenone under N 2 .NH i Pr 2 was distilled from NaOH under N 2 .4-iodosalicylaldehyde (5), 1,2-didodecyloxy-4,5diaminobenzene (6), and 1,4-dihexyldecyloxy-2,5-diethynylbenzene (9) were prepared by literature methods.[1][2][3] Equipment.All reactions were carried out under N 2 atmosphere unless otherwise noted.300MHz 1 H NMR spectra and 75.5 MHz 13 C NMR spectra were recorded on a Bruker AV-300 spectrometer.UV-Vis spectra were obtained in THF (ca.5x10 -6 M) on a Varian Cary 5000 UV-vis/near-IR spectrometer using a 1 cm cuvette.Fluorescence spectra were obtained in distilled THF (ca.5x10 -6 M) on a Varian Cary Eclipse fluorimeter using a 1 cm cuvette.Quantum yields were referenced to a solution of anthracene in EtOH (Φ = 0.30).4 The sample solutions were degassed by bubbling N 2 into the cell for 5 minutes.IR spectra were obtained as KBr discs with a Bomens MB-series spectrometer.Molecular weights were estimated by gel permeation chromatography (GPC) using a Waters liquid chromatograph equipped with a Waters 515 HPLC pump, Waters 717 plus autosampler, Waters Styragel® columns (4.6 % 300mm) HR2, HR4 and HR5E and a Waters 2410 differential refractometer (refractive index detector).A flow rate of 0.3 mL/min was used and samples were dissolved in THF (ca. 1 mg/mL) and filtered before injection.Narrow molecular weight polystyrene standards were used for calibration purposes.Electrospray (ESI) mass spectra were obtained at the UBC Microanalytical Services Laboratory on a Micromass LCT time-of-flight (TOF) mass spectrometer equipped with an electrospray ion source.The sample was analyzed in MeOH:CHCl 3 at 1µM.Electron Impact (EI) mass spectra and elemental Analyses were performed at the UBC Microanalytical Services laboratory.Melting points were obtained on a Fisher-John's melting point apparatus and are corrected.Wide-angle X-ray scattering
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".