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FTIR 模式支持广泛归属于含氮和氧官能团的杂环羰基有机化合物,而不是对特定 Top-1 谱库分子的可辩护鉴定。样品在 1752 和 1663 cm-1 处显示强羰基吸收,在 2968 cm-1 附近有 C-H 伸缩,在 3541 cm-1 有与 O-H 或 N-H 伸缩一致的高波数带,以及在 1290 和 1168 cm-1 有多个与含 C-O 和/或 C-N 官能团一致的指纹区带。这种一般化学性质与 Top-15 谱库模式兼容,该模式反复出现含氮和含氧杂环或富含酰胺/羧酸的化合物,但检索本身非常弱,并且没有直接或相关文献证据将结果缩小到命名的谱库化合物。
推荐的后续步骤: Obtain a higher-quality FTIR spectrum with baseline correction and confirm the exact shapes of the 3541, 1752, and 1663 cm-1 bands; this will help separate O-H, N-H, acid, amide, ester, and lactam contributions. Check for additional carbonyl-region structure between about 1800 and 1500 cm-1 at higher resolution to determine whether two distinct carbonyl functional groups are present. Acquire complementary Raman, MS, or NMR data to determine whether the sample contains a defined heterocyclic small molecule rather than a more general oxygenated/nitrogenated organic material. If chlorinated candidate structures remain of interest, use elemental analysis or XRF/EDS to test for chlorine before considering any chlorinated library entity.
| 排名 | 匹配% | 化合物 | SMILES | 光谱编号 | 操作 |
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