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RESULTATSIDE

oxygen-containing inorganic or oxygenated surface material with hydroxyl/water contribution

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Resultatnr.: 20250420200457395596082 Eier: publicuser Kommentarer: 1
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FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250420200457395596082 Date: 2025-04-21 01:21:53 Reported by: FTIR.fun Contact: [email protected]

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Top15

Similarity-ranked Top-15 library comparison

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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

oxygen-containing inorganic or oxygenated surface material with hydroxyl/water contribution

General assessment
-
#75964 Initial rank 1 Current rank 1 Library lead match 0.0%
Conclusion
  1. Strong O-H/water-related evidence is present from bands near 3435 and 1650 cm-1.
  2. Additional sharp high-wavenumber O-H features at 3690, 3754, and 3856 cm-1 support hydroxylated or surface-hydroxyl character.
  3. The leading library result name is oxygen(-2) anion; yttrium(+3) cation, which is at least broadly consistent with an oxygen-rich inorganic interpretation.
Main limitation

All top library candidates have similarity values of 0.000, so the library search does not provide positive match support for a specific material.

Evidence & interpretation
Evidence

Key evidence

Bibliotekets ledende treff
oxygen(-2) anion; yttrium(+3) cation #75964 | match 0.0%
Materialretning
oxygen-containing inorganic or oxygenated surface material with hydroxyl/water contribution The FTIR search does not support a reliable specific material identification for this sample. Although the nearest library entry is oxygen(-2) anion; yttrium(+3) cation, all listed library similarities are 0.000 and there is no direct reference or related-literature confirmation. The observed spectrum is better described conservatively as an oxygen-containing material showing strong hydroxyl or adsorbed water contribution, with possible low-wavenumber inorganic or surface-related features.
Support

Evidence supporting the conclusion

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

  1. The FTIR search does not support a reliable specific material identification for this sample. Although the nearest library entry is oxygen(-2) anion; yttrium(+3) cation, all listed library similarities are 0.000 and there is no direct reference or related-literature confirmation. The observed spectrum is better described conservatively as an oxygen-containing material showing strong hydroxyl or adsorbed water contribution, with possible low-wavenumber inorganic or surface-related features.
  2. Strong O-H/water-related evidence is present from bands near 3435 and 1650 cm-1.
  3. Additional sharp high-wavenumber O-H features at 3690, 3754, and 3856 cm-1 support hydroxylated or surface-hydroxyl character.
  4. The leading library result name is oxygen(-2) anion; yttrium(+3) cation, which is at least broadly consistent with an oxygen-rich inorganic interpretation.
  5. The library consensus description mentions oxygen-containing character, which is more consistent with the observed O-H and low-frequency features than with a well-defined hydrocarbon material.
  6. The measured bands are at 857, 1540, 1650, 2306, 2355, 3435, 3690, 3754, and 3856 cm-1.
  7. A broad band near 3435 cm-1 together with a band near 1650 cm-1 is consistent with O-H stretching and H-O-H bending from hydroxyl groups or adsorbed water.
  8. Higher-wavenumber bands at 3690, 3754, and 3856 cm-1 are consistent with more weakly hydrogen-bonded or isolated O-H environments, such as surface hydroxyls.
  9. The band at 857 cm-1 may reflect a lower-frequency lattice, metal-oxygen, or oxygenated framework vibration, but it is not sufficient by itself to assign a specific compound.
  10. Bands at 2306 and 2355 cm-1 are commonly influenced by atmospheric CO2 and should be treated cautiously unless independently confirmed as sample-derived.
  11. The Top-15 library pattern is highly inconsistent and low-match, so it supports only a broad oxygen-containing direction rather than a specific entity.
Limitations

Evidence that limits the conclusion

  • All top library candidates have similarity values of 0.000, so the library search does not provide positive match support for a specific material.
  • The Top-15 candidates span unrelated chemistries, including inorganic salts, organotin, polyethylene, acids, and aromatic compounds, indicating poor specificity.
  • No related-literature evidence was recovered to confirm a distinct compound class.
  • The library direction suggestion of oxygen heterocycle / methyl is not well supported by the actual peak set, which lacks clear characteristic C-H stretching and fingerprint evidence for a methyl-substituted organic heterocycle.
  • It remains unclear whether the sample is primarily an inorganic oxide/hydroxide, a hydrated surface, or a mixed material carrying adsorbed moisture.
  • The origin of the 1540 cm-1 band is not securely established from the available evidence.
  • The 2306 and 2355 cm-1 features may be environmental CO2 rather than intrinsic sample bands.
  • Without stronger fingerprint-region agreement or corroborating reference data, the specific library hit cannot be treated as an identification.
Recommendation

Suggested next verification

  • Recollect the FTIR spectrum after improved background subtraction and control of atmospheric H2O/CO2 to test whether the 2306, 2355, 3435, and 1650 cm-1 bands decrease.
  • Dry or heat the sample gently under vacuum or dry gas, then remeasure to determine whether the hydroxyl/water bands are due to adsorbed moisture or structural O-H groups.
  • Obtain a broader and cleaner fingerprint-region spectrum below 1000 cm-1, since inorganic oxide and lattice assignments often depend on that region.
  • If yttrium oxide or another metal oxide is suspected from sample context, confirm with elemental methods such as XRF, EDS, or XPS rather than relying on this FTIR search alone.
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 · 3435 0.64 - - - -
2 · 3856 0.56 - - - -
3 · 3754 0.53 - - - -
4 · 3690 0.52 - - - -
5 · 2306 0.29 - - - -
6 · 2355 0.28 - - - -
7 · 1650 0.25 - - - -
8 · 1540 0.23 - - - -
9 · 857 0.22 - - - -
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
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  • 21 Apr '25

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