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aromatic oxygen-containing organic material, possibly a phenolic or carboxylated aromatic compound

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結果編號: 20250529163503483611595 擁有者: publicuser 評論: 1
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FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250529163503483611595 Date: 2025-05-30 01:59:34 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

aromatic oxygen-containing organic material, possibly a phenolic or carboxylated aromatic compound

General assessment
-
#77968 Initial rank 1 Current rank 1 Library lead match 0.0%
Conclusion
  1. Aromatic-region bands at 748, 804, 873, and 3033 cm-1 support the presence of an aromatic organic component.
  2. The 3302 cm-1 feature is compatible with O-H-containing chemistry such as phenolic or other hydroxyl-bearing material.
  3. The top library candidate, 1-hydroxynaphthalene-2-carboxylic acid, is at least chemically consistent with an aromatic oxygen-containing compound.
Main limitation

All reported library candidate similarities are zero-level, so the library search does not provide a credible specific match.

Evidence & interpretation
Evidence

Key evidence

資料庫主要匹配
1-hydroxynaphthalene-2-carboxylic acid #77968 | match 0.0%
材料方向
aromatic oxygen-containing organic material, possibly a phenolic or carboxylated aromatic compound The current FTIR result does not support a firm material identification. Although the nearest library hit is 1-hydroxynaphthalene-2-carboxylic acid, all listed library similarities are effectively zero, and no direct or related literature evidence independently supports that specific compound. The observed spectrum is more safely described as an aromatic oxygen-containing organic material, with bands consistent with aromatic C-H/out-of-plane features and possible O-H functionality, but without a convincing set of characteristic bands required to confirm a specific phenolic carboxylic acid.
Support

Evidence supporting the conclusion

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

  1. Aromatic-region bands at 748, 804, 873, and 3033 cm-1 support the presence of an aromatic organic component.
  2. The 3302 cm-1 feature is compatible with O-H-containing chemistry such as phenolic or other hydroxyl-bearing material.
  3. The top library candidate, 1-hydroxynaphthalene-2-carboxylic acid, is at least chemically consistent with an aromatic oxygen-containing compound.
  4. The strongest user-facing library name available is 1-hydroxynaphthalene-2-carboxylic acid, but the reported match quality is very low and does not justify an entity-level assignment.
  5. The sample shows bands at 748, 804, and 873 cm-1, which are compatible with aromatic ring C-H out-of-plane vibrations and therefore support an aromatic component.
  6. A band near 3033 cm-1 is consistent with aromatic or unsaturated C-H stretching.
  7. Bands near 3302 cm-1 and the higher-frequency features at 3855 and 3989 cm-1 suggest possible O-H-containing species, although the very high-frequency signals may also reflect weak, free, or non-ideal features rather than a well-defined bulk functional group pattern.
  8. The Top-15 library list is chemically heterogeneous, but several candidates contain aromatic rings and/or oxygenated functionality; this broad pattern is compatible only with a general aromatic oxygenated direction, not with a single named material.
Limitations

Evidence that limits the conclusion

  • All reported library candidate similarities are zero-level, so the library search does not provide a credible specific match.
  • A specific assignment to 1-hydroxynaphthalene-2-carboxylic acid would normally require stronger supporting evidence for a carboxylic acid carbonyl and associated acid O-H pattern, which is not convincingly established from the present peak list.
  • The candidate list includes very different chemistries such as nitro heteroaromatic, polyamine, sulfamide, and sulfur-containing polymer entries, indicating weak retrieval coherence.
  • Features around 1894, 1984, 2111, and 2325 cm-1 do not provide a clear, sample-defining match to the leading candidate and may reflect non-specific, overtone, atmospheric, or measurement-related contributions.
  • The present evidence supports only a broad aromatic oxygen-containing organic direction.
  • It remains uncertain whether the oxygenated functionality is primarily phenolic, carboxylic acid, or another hydroxyl-containing motif.
  • Without stronger characteristic bands or an improved library match, the sample cannot be reliably assigned to the named top hit.
Recommendation

Suggested next verification

  • Recollect the FTIR spectrum with improved background correction and atmospheric compensation, especially to assess the 2325 cm-1 region and weak high-frequency features.
  • Inspect the 1700-1750 cm-1 region carefully in a full spectrum to determine whether a carboxylic acid or other carbonyl band is actually present.
  • Check for a broad carboxylic acid O-H envelope across roughly 2500-3300 cm-1 versus a narrower phenolic O-H band near 3200-3600 cm-1.
  • If available, confirm aromatic oxygenated functionality with complementary Raman, GC-MS, or NMR analysis before considering the specific library candidate.
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 · 748 1.00 - - - -
2 · 804 0.87 - - - -
3 · 1172 0.86 - - - -
4 · 873 0.79 - - - -
5 · 1574 0.59 - - - -
6 · 3033 0.44 - - - -
7 · 3302 0.43 - - - -
8 · 2834 0.41 - - - -
9 · 3989 0.36 - - - -
10 · 3855 0.35 - - - -
11 · 2325 0.34 - - - -
12 · 2111 0.20 - - - -
13 · 1894 0.15 - - - -
14 · 1984 0.11 - - - -
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
討論

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  • 30 五月 '25

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