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heteroatom-containing organic material with possible amine/alcohol character

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N. risultato: 20250421190352961844422 Proprietario: publicuser Commenti: 1
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FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250421190352961844422 Date: 2025-04-22 03:10:01 Reported by: FTIR.fun Contact: [email protected]

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Top15

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Top 15 candidates

Reference library candidates

Rank Match % Compound Name Formula / SMILES Library preview Action
Reference candidates load with this Top-15 workbench.

Based on the library matches and evidence above.

Conclusion

heteroatom-containing organic material with possible amine/alcohol character

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Conclusion
  1. The top two library candidates are polyamine-related materials: Poly(ethylenimine),epichlorohydrin modified and Poly(ethylenimine).
  2. The observed 3321 cm-1 band is compatible with amine- or alcohol-containing materials.
  3. The 1025 cm-1 band is compatible with C-N or C-O functionality, which is reasonable for polyamine/polyol-like materials among the leading candidates.
Evidence & interpretation
Evidence

Key evidence

Corrispondenza principale della libreria
Poly(ethylenimine),epichlorohydrin modified #7725
Limitations

Evidence that limits the conclusion

  • All listed library similarities are 0.000, S-O the library search does not provide a reliable direct match.
  • The library consensus note pointing to sulfur heterocycle / methyl is not convincingly reflected by the observed peak set, which lacks clear characteristic aromatic sulfur-heterocycle evidence.
  • The observed peak set does not show a distinctive, complete pattern expected to safely confirm the named top candidate.
  • The broad 3321 cm-1 feature cannot distinguish confidently between O-H-rich and N-H-rich materials.
  • The weak structure in the 1900-2300 cm-1 region remains ambiguous and may not belong to the principal sample chemistry.
  • Without stronger fingerprint-region agreement, the present data cannot separate polyamine, polyol, or other heteroatom-containing organic possibilities.
  • A specific entity-level identification is not supportable from the current FTIR evidence alone.
Recommendation

Suggested next verification

  • Recollect the FTIR spectrum with atmospheric CO2/H2O background control to check whether features near 2236 and 2334 cm-1 persist.
  • Obtain a higher-quality fingerprint-region spectrum, especially 1800-700 cm-1, and compare for characteristic amine versus alcohol/polyol band patterns.
  • Check for complementary evidence by Raman, elemental analysis, or XPS to determine whether nitrogen, sulfur, or chlorine is actually present.
  • If a poly(ethylenimine)-type material is suspected, verify with wet-chemical amine testing or compare against authenticated PEI and epichlorohydrin-modified PEI reference spectra under the same measurement conditions.
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

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Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 · 1025 1.00 - - - -
2 · 897 0.61 - - - -
3 · 1513 0.35 - - - -
4 · 1980 0.32 - - - -
5 · 3321 0.30 - - - -
6 · 2159 0.25 - - - -
7 · 1902 0.23 - - - -
8 · 2236 0.21 - - - -
9 · 2071 0.21 - - - -
10 · 2334 0.20 - - - -
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Appendix

Sample information and raw spectrum

Original uploaded spectrum for reference and verification.

Baseline correction was cancelled by the user.

The wavelength range for analysis(cm-1): [(650, 4000)]

Raw spectrum without baseline correction or other processing:

Sample spectrum image
Discussione

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Admin  da : Seattle, United States
  • 22 Apr '25

This is the FTIR analysis result of a TIFF file uploaded by a user with IP156.xx.xx.163 The original image is shown below.1 - 副本.png

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