FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250422120010885839355 Date: 2025-04-22 18:06:29 Reported by: FTIR.fun Contact: [email protected]

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Top15

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Library spectrum will appear here.

Infrared spectrum comparison chart. Analysis result: oxygenated and possibly sulfur-containing material with O-H/N-H functionality.

The FTIR evidence does not support a reliable assignment to a specific library compound. The library top hit is effectively non-matching, and the Top-15 candidates are chemically inconsistent with one another. The sample is more defensibly described as an oxygenated material that shows high-wavenumber O-H and/or N-H stretching and strong fingerprint-region absorption that could include S=O contribution, but the present evidence is not sufficient to confirm a specific sulfur compound, phenolic compound, or discrete library entity

Library spectrum Interactive sample curve Move the pointer to show the vertical guide line.

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

oxygenated and possibly sulfur-containing material with O-H/N-H functionality

General assessment

#24370 Initial rank 1 Current rank 1 Library lead match 0.0%

Conclusion

Multiple high-wavenumber bands support the presence of O-H and/or N-H functionality.
The 1152 cm-1 band supports an oxygen-rich functional group environment.
Library consensus metadata mentions S=O / N-H, which is broadly compatible with the observed high-wavenumber X-H region and fingerprint absorption, though only at a very weak level.

Main limitation

The leading library candidate, disodium;dioxido-oxo-sulfanylidene-lambda6-sulfane, has 0.000 similarity and therefore is not a credible direct match.

Evidence

Key evidence

資料庫主要匹配

disodium;dioxido-oxo-sulfanylidene-lambda6-sulfane #24370 | match 0.0%

材料方向

oxygenated and possibly sulfur-containing material with O-H/N-H functionality The FTIR evidence does not support a reliable assignment to a specific library compound. The library top hit is effectively non-matching, and the Top-15 candidates are chemically inconsistent with one another. The sample is more defensibly described as an oxygenated material that shows high-wavenumber O-H and/or N-H stretching and strong fingerprint-region absorption that could include S=O contribution, but the present evidence is not sufficient to confirm a specific sulfur compound, phenolic compound, or discrete library entity.

Support

Evidence supporting the conclusion

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

The FTIR evidence does not support a reliable assignment to a specific library compound. The library top hit is effectively non-matching, and the Top-15 candidates are chemically inconsistent with one another. The sample is more defensibly described as an oxygenated material that shows high-wavenumber O-H and/or N-H stretching and strong fingerprint-region absorption that could include S=O contribution, but the present evidence is not sufficient to confirm a specific sulfur compound, phenolic compound, or discrete library entity.
Multiple high-wavenumber bands support the presence of O-H and/or N-H functionality.
The 1152 cm-1 band supports an oxygen-rich functional group environment.
Library consensus metadata mentions S=O / N-H, which is broadly compatible with the observed high-wavenumber X-H region and fingerprint absorption, though only at a very weak level.
Observed bands at 3400, 3562, and 3784 cm-1 indicate high-wavenumber X-H stretching consistent with free or weakly hydrogen-bonded O-H and possibly N-H functionality.
Bands near 1618 and 1684 cm-1 suggest unsaturation and/or a carbonyl-region contribution, but they do not uniquely define a single compound class.
The strong fingerprint-region bands at 981 and 1152 cm-1 are compatible with oxygen-containing functional groups and could overlap with sulfur-oxygen stretching, but the evidence is not specific enough to confirm sulfite-, sulfoxide-, or sulfate-type chemistry.
Additional features at 1795, 1874, 1992, and 2066 cm-1 are unusual for a simple neat organic compound and may reflect overtone/combination structure, matrix effects, or mixed-component behavior.
The Top-15 library pattern contains sulfur-oxygen, fluorinated, halogenated aromatic diol, methoxyphenol, and aliphatic diol candidates, which indicates weak and non-convergent retrieval rather than a coherent material identity.

Limitations

Evidence that limits the conclusion

The leading library candidate, disodium;dioxido-oxo-sulfanylidene-lambda6-sulfane, has 0.000 similarity and therefore is not a credible direct match.
The Top-15 candidates do not share a single chemically coherent identity; they span inorganic sulfur species, fluorinated organometallic-like compounds, phenolic aromatics, and aliphatic alcohols.
If the sample were narrowly assigned as a specific sulfur oxyanion salt, the prominent high-wavenumber O-H/N-H region would remain insufficiently explained.
If the sample were narrowly assigned as a phenolic aromatic, the unusual bands above 1790 cm-1 and the overall non-convergent library pattern would still limit confidence.
It remains unclear whether the high-wavenumber features arise from O-H, N-H, adsorbed moisture, or a mixture of these contributions.
The current spectrum does not securely distinguish between an oxygenated organic material, a sulfur-oxygen-containing material, or a mixed sample.
Possible aromatic, carbonyl-like, and sulfur-oxygen contributions are suggested but not firmly established by the available evidence.

Recommendation

Suggested next verification

Re-run FTIR on a freshly prepared dry sample and blank the instrument carefully to test whether the 3400-3784 cm-1 features are intrinsic or moisture-related.
Inspect the sample in ATR and, if possible, in transmission to see whether the unusual 1795-2066 cm-1 region persists or is an artifact.
Compare replicate spectra from different spots to evaluate sample heterogeneity or mixture behavior.
If sulfur-containing material is suspected, verify with elemental analysis such as XRF, EDS, or ion chromatography for sulfur-bearing species.

Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

Index	Characteristic	Wavenumber	Absorbance	Evidence	One-line interpretation	Citation	Confidence
1	·	1152	1.00	-	-	-	-
2	·	981	0.49	-	-	-	-
3	·	3562	0.46	-	-	-	-
4	·	1430	0.39	-	-	-	-
5	·	1618	0.30	-	-	-	-
6	·	782	0.29	-	-	-	-
7	·	3400	0.27	-	-	-	-
8	·	1684	0.21	-	-	-	-
9	·	1795	0.20	-	-	-	-
10	·	1874	0.19	-	-	-	-
11	·	3003	0.18	-	-	-	-
12	·	3784	0.17	-	-	-	-
13	·	2876	0.14	-	-	-	-
14	·	2066	0.11	-	-	-	-
15	·	1992	0.10	-	-	-	-

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:

oxygenated and possibly sulfur-containing material with O-H/N-H functionality

FTIR Spectrum Analysis Report

Similarity-ranked Top-15 library comparison

Reference library candidates

oxygenated and possibly sulfur-containing material with O-H/N-H functionality

Key evidence

Evidence supporting the conclusion

Evidence that limits the conclusion

Suggested next verification

Detected peaks and interpretation

Sample information and raw spectrum

評論和後續證據

線上支援

oxygenated and possibly sulfur-containing material with O-H/N-H functionality

Similarity-ranked Top-15 library comparison

Reference library candidates

oxygenated and possibly sulfur-containing material with O-H/N-H functionality

Key evidence

Evidence supporting the conclusion

Evidence that limits the conclusion

Suggested next verification

Detected peaks and interpretation

Sample information and raw spectrum

評論和後續證據

此類別中的其他分析

線上支援

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