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REZULTATŲ PUSLAPIS

methyl-containing ether-rich organic material with possible halogen-related bands

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Rezultato Nr.: 20250318170704211149851 Savininkas: publicuser Komentarai: 0
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FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250318170704211149851 Date: 2025-03-18 11:38:01 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
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Based on the library matches and evidence above.

Conclusion

methyl-containing ether-rich organic material with possible halogen-related bands

General assessment
-
#78127 Initial rank 1 Current rank 1 Library lead match 0.0%
Conclusion
  1. A characteristic band at 1084 cm-1 supports the presence of C-O functionality, consistent with ether or alkoxy groups.
  2. The library top hit is Poly(vinyl methyl ether), which is at least directionally consistent with an ether-rich, methyl-containing organic material.
  3. The broader Top-15 library pattern contains multiple alkoxy/acetal/ethoxy-type candidates, supporting a generalized oxygenated organic direction.
Main limitation

The library match quality is weak: all listed top candidates have effectively zero discriminating similarity, so the search does not uniquely favor the top name.

Evidence & interpretation
Evidence

Key evidence

Bibliotekos pagrindinis atitikmuo
Poly(vinyl methyl ether) #78127 | match 0.0%
Medžiagos kryptis
methyl-containing ether-rich organic material with possible halogen-related bands The ordinary FTIR search does not support a firm material identification for this sample. The nearest library name is Poly(vinyl methyl ether), but all reported library similarities are effectively non-discriminating, and no direct reference or related-literature evidence independently confirms that assignment. The measured bands at 1084, 798, and 694 cm-1 are more safely interpreted as indicating an organic material containing methyl and C-O type ether features, with lower-wavenumber bands that could reflect substituted hydrocarbon, halogen-related, or other fingerprint-region contributions. On the present evidence, a broadened direction is more defensible than a specific entity claim.
Support

Evidence supporting the conclusion

Only sample-relevant statements that support the present conclusion are shown here.

  1. The ordinary FTIR search does not support a firm material identification for this sample. The nearest library name is Poly(vinyl methyl ether), but all reported library similarities are effectively non-discriminating, and no direct reference or related-literature evidence independently confirms that assignment. The measured bands at 1084, 798, and 694 cm-1 are more safely interpreted as indicating an organic material containing methyl and C-O type ether features, with lower-wavenumber bands that could reflect substituted hydrocarbon, halogen-related, or other fingerprint-region contributions. On the present evidence, a broadened direction is more defensible than a specific entity claim.
  2. A characteristic band at 1084 cm-1 supports the presence of C-O functionality, consistent with ether or alkoxy groups.
  3. The library top hit is Poly(vinyl methyl ether), which is at least directionally consistent with an ether-rich, methyl-containing organic material.
  4. The broader Top-15 library pattern contains multiple alkoxy/acetal/ethoxy-type candidates, supporting a generalized oxygenated organic direction.
  5. Several top candidates also include chlorine, so halogen-related contributions remain a plausible explanation for part of the fingerprint region.
  6. The strongest measured band is at 1084 cm-1, which is consistent with C-O stretching in ether-like or alkoxy-containing organic materials.
  7. The additional bands at 798 and 694 cm-1 fall in the fingerprint region and are not by themselves sufficient to establish a unique structure.
  8. The Top-15 library pattern repeatedly includes methyl-containing and ether-containing candidates, and several candidates also contain chlorine, so the search broadly points toward a small-feature organic fingerprint dominated by alkyl/alkoxy chemistry.
  9. Although Poly(vinyl methyl ether) appears as the top library name, the retrieval confidence is low and the reported similarity values do not separate it meaningfully from unlike alternatives.
Limitations

Evidence that limits the conclusion

  • The library match quality is weak: all listed top candidates have effectively zero discriminating similarity, so the search does not uniquely favor the top name.
  • The Top-15 candidates are chemically heterogeneous, including ethers, chlorinated compounds, anilines, and silicate-related entries, which limits confidence in any narrow assignment.
  • The observed peak set is sparse, and there is no direct supporting evidence for a definitive polymer backbone, aromatic system, or specific chlorinated structure.
  • There is no independent direct-reference or related-literature support for assigning the sample specifically as Poly(vinyl methyl ether).
  • The available spectrum contains only three reported bands, leaving much of the identifying FTIR pattern untested.
  • The lower-wavenumber bands at 798 and 694 cm-1 could arise from more than one structural motif, including substituted hydrocarbon or halogen-associated vibrations.
  • Possible chlorine involvement is suggested only indirectly by the library candidate pattern, not by a uniquely identifying set of observed bands.
  • A specific entity-level identification remains unsupported without additional characteristic absorptions and a better-resolved spectral match.
Recommendation

Suggested next verification

  • Reacquire the FTIR spectrum over the full mid-IR range with improved signal-to-noise and baseline correction, and confirm whether additional C-H stretching, C-O stretching, or halogen-associated fingerprint bands are present.
  • Inspect the 1300-900 cm-1 region in more detail to determine whether the 1084 cm-1 feature is part of a broader ether/alkoxy pattern expected for poly(vinyl ethers) or related oxygenated organics.
  • Check for supporting C-H stretching bands near 3000-2800 cm-1 and for any absence or presence of strong carbonyl absorption near 1800-1650 cm-1 to further constrain the material class.
  • If chlorine is suspected from sample history, use an orthogonal method such as XRF, EDS, or elemental analysis to verify whether halogen is actually present.
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 · 1084 1.00 - - - -
2 · 798 0.36 - - - -
3 · 694 0.14 - - - -
Appendix

Sample information and raw spectrum

Original uploaded spectrum for reference and verification.

Baseline correction method: Asymmetric Least Squares Smoothing

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

Raw spectrum without baseline correction or other processing:

Sample spectrum image
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