What absorbs at 1193 cm⁻¹ in an FTIR spectrum?

快速回答

A band near 1193 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 1193 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

• Acetate 信心 1.0

  “graph of polyurethane prepolymer were allocated cm-1 1193 assigned to -C-O, -C-C stretching.”

  Salem 和 Salama - 2020 - Developing a New Class of UV-curable Polyurethane DOI: 10.21608/ejchem.2019.14853.1906
• Phosphate (PO4) 信心 1.0

  “Moreover, the significant peak at 1193 cm-1 (medium) was assigned to the vibration of P=O bonds in the phosphate moieties.”

  Hung Kim Nguyen 等 - 2020 - Preparation of a Novel Flame Retardant Formulation DOI: 10.3390/ma13010054
• Acetate 信心 1.0

  “At 1193 the =C-O-C= stretch was detected.”

  Solubility Temperature Dependence of Bio-Based Levulinic Acid, Furfural, and Hydroxymethylfurfural in Water, Nonpolar, Polar Aprotic and Protic Solvents DOI: 10.3390/pr9060924
• 信心 1.0

  “As can be seen in Figure cm-1 after salicylaldoxime treatment, the N-Cu and O-Cu stretch vibrations are found at 1193 and 1152”

  Comparison of Adsorption of Phenol O-O and N-O Chelating Collectors at the Malachite/Water Interface in Flotation DOI: 10.3390/min7020020
• Acetate 信心 1.0

  “Charging 1296 C-O asymmetric stretching vibration in adsorbed or solvated DEC C-O asymmetric stretching vibration in adsorbed 1193 or solvated EC C-O symmetric stretching vibration in adsorbed 1084”

  Matsui 等 - 2015 - In-operando FTIR Spectroscopy for Composite Electr DOI: 10.5796/electrochemistry.83.874
• Acetate 信心 1.0

  “cm-1 4f and Pb 4f 5/2, respectively, and previous studies have reported that the typical binding energy of Moreover, the FTIR spectra of obtained MPS are shown in Figure 9, where the peak at 1718 7/2 cm-1 C=O corresponds to the adsorption o”

  Zhou 等 - 2019 - Scalable Fabrication of Metallopolymeric Superstru DOI: 10.3390/nano9071001