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谱库首选匹配为1-溴二十二烷,但匹配质量实际上不存在,样品光谱中含有与简单溴代烷烃不一致的谱带。观测到的强脂肪族C-H伸缩区(2913、2851 cm-1)以及亚甲基相关谱带(包括1464和720 cm-1)支持长链烃组分。然而,1748 cm-1处的清晰谱带指示羰基,3272-3321 cm-1附近的宽/成对吸收表明羟基和/或胺类功能,这大大扩展了化学上可支持的结论范围,超出了谱库指定的首选匹配。根据现有证据,样品更适宜描述为含有额外羰基和氢键官能团的长链脂肪族有机材料,而非具体指定为1-溴二十二烷。
推荐的后续步骤: Verify the carbonyl assignment by inspecting the full fingerprint region for ester C-O stretching bands, especially in the approximate 1300-1000 cm-1 range. Check for N-H versus O-H character by examining the shape and breadth of the 3272-3321 cm-1 region and by looking for accompanying amide bands near 1650-1550 cm-1 if available. If brominated identity is important, confirm with an orthogonal method such as GC-MS, LC-MS, or XRF/elemental halogen analysis rather than FTIR alone. If the sample may be a polymer or formulated material, compare against reference spectra for long-chain esters, fatty amides, fatty alcohols, oxidized polyethylene, and wax-like hydrocarbon mixtures.
| 排名 | 匹配% | 化合物 | SMILES | 光谱编号 | 操作 |
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FTIR.fun
This is the FTIR analysis result of a PDF file uploaded by a user with IP 217.xxx.xxx.79 . The original image is shown below. Due to the peak height threshold setting, some weak peaks were not included in the analysis and will be supplemented later.
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