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halogenated nitrogen-containing organic compound

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結果番号: 20250228102201976218934 所有者: publicuser コメント: 0
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FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250228102201976218934 Date: 2025-02-28 02:25:36 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
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Based on the library matches and evidence above.

Conclusion

halogenated nitrogen-containing organic compound

General assessment
-
#14044 Initial rank 1 Current rank 1 Library lead match 0.0%
Conclusion
  1. The leading library candidate, 2-fluoroacetonitrile, and several other top-ranked entries indicate that nitrogen-containing and halogen-containing organics are at least plausible directions.
  2. A band near 1215 cm⁻1 is compatible with vibrations often seen in fluorinated organic materials, although this is not uniquely identifying in the current dataset.
  3. Bands in the 800-1100 cm⁻1 region can occur in substituted aliphatic frameworks containing C-X or C-N associated motions, which is broadly consistent with a halogenated nitrogen-containing organic assignment.
Main limitation

No characteristic nitrile band near the expected 2200-2300 cm⁻1 region is reported, which weakens a specific assignment to 2-fluoroacetonitrile or another simple nitrile.

Evidence & interpretation
Evidence

Key evidence

ライブラリリードマッチ
2-fluoroacetonitrile #14044 | match 0.0%
材料の方向性
halogenated nitrogen-containing organic compound The present FTIR result does not support a firm compound-level identification. The library placed 2-fluoroacetonitrile first, but all reported library similarities are 0.000 and no direct or related literature evidence independently supports that assignment. With only bands at 798, 953, 1070, and 1215 cm⁻1, the most chemically supportable conclusion is a broad halogenated nitrogen-containing organic compound rather than a specific molecule.
Support

Evidence supporting the conclusion

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

  1. The leading library candidate, 2-fluoroacetonitrile, and several other top-ranked entries indicate that nitrogen-containing and halogen-containing organics are at least plausible directions.
  2. A band near 1215 cm⁻1 is compatible with vibrations often seen in fluorinated organic materials, although this is not uniquely identifying in the current dataset.
  3. Bands in the 800-1100 cm⁻1 region can occur in substituted aliphatic frameworks containing C-X or C-N associated motions, which is broadly consistent with a halogenated nitrogen-containing organic assignment.
  4. The observed spectrum is sparse, with reported bands only at 798, 953, 1070, and 1215 cm⁻1.
  5. The top library hit is 2-fluoroacetonitrile, but the retrieval confidence is explicitly low and the similarity values for the leading candidates are all 0.000.
  6. The Top-15 library pattern is internally inconsistent, mixing nitriles, chlorinated silanes, sulfur-containing species, organosiloxanes, phosphates, hydrocarbons, and a film material rather than a single coherent chemical class.
  7. The broad library consensus text mentions nitrogen heterocycle and chlorine, but the lead candidate name is not a nitrogen heterocycle and the candidate list does not provide a stable, convergent match.
Limitations

Evidence that limits the conclusion

  • No characteristic nitrile band near the expected 2200-2300 cm⁻1 region is reported, which weakens a specific assignment to 2-fluoroacetonitrile or another simple nitrile.
  • No reported N-H, aromatic, or clear heterocycle-related bands support the narrower library wording of nitrogen heterocycle.
  • The candidate list also contains chemically unrelated materials such as siloxanes, sulfur salts, phosphates, hydrocarbons, and film, showing that the retrieval is not selective.
  • There is no direct literature or reference spectrum evidence confirming chlorine, fluorine, or a specific nitrogen functionality in this sample.
  • The current peak set is too limited to distinguish among nitrile-containing, amine-containing, halogenated aliphatic, or other low-feature organic materials.
  • It remains uncertain whether the relevant halogen, if present, is fluorine, chlorine, or another substituent because the reported bands are not uniquely characteristic by themselves.
  • The absence of higher-wavenumber information prevents confirmation of key functional groups that would be needed for a narrower conclusion.
Recommendation

Suggested next verification

  • Re-acquire the FTIR spectrum over the full range, especially 4000-600 cm⁻1, to check for a nitrile band near 2200-2300 cm⁻1 and any N-H, C-H, or other characteristic bands.
  • Inspect the sample for halogen content using an orthogonal method such as XRF, ion chromatography after combustion, or mass spectrometry if the sample amount allows.
  • If 2-fluoroacetonitrile remains of interest, compare the sample directly against a reference spectrum of 2-fluoroacetonitrile and verify whether the expected nitrile absorption is present.
  • If the material is part of a formulation or residue, consider GC-MS or LC-MS to determine whether the FTIR spectrum is from a small halogenated nitrogen-containing molecule or from a mixture.
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 · 1070 1.00 - - - -
2 · 953 0.30 - - - -
3 · 798 0.17 - - - -
4 · 1215 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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