What absorbs at 1292 cm⁻¹ in an FTIR spectrum?

快速回答

A band near 1292 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.

可能的官能基指派

排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。

可能的材料

僅當同一文獻庫支援此波段以及至少一個額外特徵峰時，才會顯示材料。

光譜邏輯

This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 1292 cm⁻¹ is usually not enough for material identification by itself.

實際使用

此類查詢常見於聚合物鑑別、未知塑膠篩選、品管故障排除、再生材料驗證，以及基於文獻的峰值歸屬審查。

常見錯誤

• 將一個孤立的譜帶視為材料的證據，而未檢查至少一兩個支持峰。
• 忽略重疊：多個官能團可能在相同波數附近貢獻。
• 當添加劑、混合物、氧化或污染物可能扭曲譜圖時，跳過驗證。

驗證建議

當仍然存在歧義時，使用DSC、GC-MS或TGA驗證假設，特別是對於混合物、降解樣品和填充聚合物。

這些指派背後的文獻

• Amide 信心 1.0

  “þ A A f c cm-1), cm-1), C=O stretching (1638 CH wagging (1437 and 2 cm-1) C-N stretching (1292 of optimized sample CPN-0 a Fig.”

  Jothi 等 - 2021 - Proton conducting polymer electrolyte based on cor DOI: 10.1007/s11581-020-03792-2
• Ring structure 信心 1.0

  “C-O-C glycosidic linkage vibration (Sym) 1127 C-O-C bridging vibration 1147 C-C ring vibration 1292”

  Cuiffo 等 - 2021 - Thermochemical degradation of cotton fabric under DOI: 10.1186/s40691-021-00263-8
• C-O single bond 信心 1.0

  “6c, at RH, the shoulder peaks red shift from 1344 to implying that only the 1695cm-1 ν(C=O) located at 1718 and are attributed to of NaNO component effloresces, and GA cannot be crystal3 1292cm-1 ν(C-O) crystalline GA, and the band at and r”

  Ma 等 - 2022 - A comprehensive study on hygroscopic behaviour and DOI: 10.5194/acp-22-10955-2022
• Acetate 信心 1.0

  “cm-1 cm-1 related to C-C and C-O stretching at 1292 and 1044 and bands at 1240 from C-O-C cm-1 asymmetric stretching and at 1168 from C-O symmetric stretching are observed.”

  Synthesis and Characterization of Inulin-Based Responsive Polyurethanes for Breast Cancer Applications DOI: 10.3390/polym12040865
• 信心 1.0

  “Similarly, the peaks at 1292.27 and 1042.70 correspond to the stretching vibration type of strong fluoro compound and medium amine groups, respectively.”

  Isolation and Characterization of a Novel Actinomycete Isolated from Marine Sediments and Its Antibacterial Activity against Fish Pathogens DOI: 10.3390/antibiotics11111546
• Amide 信心 1.0

  “The peak at 1292 cm-1 is assigned to the C-N bending vibration [37], while the ones at 1037 cm-1 and 694 cm-1 correspond to the presence of Si-O-Si and Si-O-C on the graphene sheets surface [9].”

  Synthesis and Characterization of Some Graphene Oxide Powders Used as Additives in Hydraulic Mortars DOI: 10.3390/app112311330
• Aromatic ring 信心 1.0

  “The band at 1292 belongs to the aromatic Table 3 FTIR assignments for the NaOH-catalyzed reaction secondary amine.”

  Santiago-Medina 等 - 2017 - Polycondensation Resins by Lignin Reaction with (P DOI: 10.7569/JRM.2017.634142
• Phosphate (PO4) 信心 0.9

  “Explicit assignment: '1292 cm21' associated with same group”

  Gajjar 等 - 2014 - Histology Verification Demonstrates That Biospectr DOI: 10.1371/journal.pone.0082416