What absorbs at 1412 cm⁻¹ in an FTIR spectrum?

快速回答

A band near 1412 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 1412 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

• C c single bond 信心 1.0

  “The 1635.78cm-1 C]O peak of shows carbonyl group and 3.5 1411.89cm-1 C-C shows stretching.”

  Bawazeer 等 - 2021 - Green synthesis of silver nanoparticles using Trop DOI: 10.1515/gps-2021-0003
• C c single bond 信心 1.0

  “The peak This is a chromophoric assay in which change in cm-1 of 1658.78 shows carbonyl group and peak absorbance is indicated by change in color and cm-1 at 1411.89 shows C-C stretching.”

  Bawazeer 等 - 2021 - Synthesis, Characterization and Bioactivity Profil DOI: 10.22207/JPAM.15.2.11
• Alkyl C-H 信心 1.0

  “The C-H plasticizer can dissociate more salts to cations and anions and thus more ions are created cm-1 bending of CH wagging is related to the band at 1412 in PVA, and C-H deformation 2”

  Characteristics of a Plasticized PVA-Based Polymer Electrolyte Membrane and H+ Conductor for an Electrical Double-Layer Capacitor: Structural, Morphological, and Ion Transport Properties DOI: 10.3390/membranes
• Alkyl C-H 信心 1.0

  “Si\CH at 1259.4 due to CH symmetric stretching of 3, at 3 cm-1 Si\CH 1412.4 due to CH asymmetric stretching of 3, and at This work studies a method to covalently modify PDMS surface 3 cm-1 C\H with photosensitive molecules having antibacter”

  Ferreira 等 - 2013 - Surface modification of poly(dimethylsiloxane) by DOI: 10.1016/j.surfcoat.2013.02.035
• Alkyl C-H 信心 1.0

  “1c, d).The bacterial cell defined as stretching vibrations of hydrogen bonded C-H 1412counts decreased after prolonged fermentation which and (Mathlouthi and Koenig 1987).”

  In vivo prebiotic properties of Ascophyllum nodosum polysaccharide hydrolysates from lactic acid fermentation DOI: 10.1007/s10811-019-01794-w
• Ring structure 信心 1.0

  “reported ring stretching vibration as strong intensity peak Mono substituted thiophenes have two bands of medium to 1412cm(cid:3)1 745-695cm(cid:3)1 at strong intensity band at in FT-Raman spectrum [20].”

  Spectroscopic investigations, molecular interactions, and molecular docking studies on the potential inhibitor ⠜thiophene-2-carboxylicacid⠀ DOI: 10.1016/j.saa.2015.01.025
• Alkyl C-H 信心 1.0

  “The small vibration peaks at ~1321 cm-1 and ~1412 cm-1 are due to C-H bendPolymers2022,14,3019 4of13 ing and O-H scissoring.”

  Proton-Conducting Biopolymer Electrolytes Based on Carboxymethyl Cellulose Doped with Ammonium Formate DOI: 10.3390/polym14153019
• Acetate 信心 1.0

  “In genThe cm-1, 1412 and 1423 the C-O stretching of aromatic ring's ether eral, the exchange process between the new and exchangeable cm-1 at 1259 and, the vibrations of aromatic ring (C C) at 1531 cations did not exhibit significant differ”

  Tabak 等 - 2011 - Structural analysis of naproxen-intercalated bento DOI: 10.1016/j.cej.2011.09.027