What absorbs at 863 cm⁻¹ in an FTIR spectrum?

快速回答

A band near 863 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 863 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

• Sulfonyl 信心 1.0

  “Intensity varies with sample crystallinity 1218 C=O=C Stretching 1020, 1080, 1170 O=S=O Stretching 863, 841, 700”

  Vibrational spectroscopic study of pure and silica-doped sulfonated poly(ether ether ketone) membranes DOI: 10.1016/j.saa.2014.12.004
• 信心 1.0

  “In 2 cm-1 pure PVC sample A, the C-H stretching peak at 2972 cm-1 and C-Cl stretching observed at 863 [33].”

  Dynamic mechanical and optical characterization of PVC/fGO polymer nanocomposites DOI: 10.1007/s00339-018-2026-2
• Amide 信心 1.0

  “glucosamine C high temperature, concentration of alkali, reaction time, 2 cm-1 was ascribed to edulis chitosan spectrum, a peak at 863 previous treatment of the chitin, particle size, chitin cm-1 C-N were stretching, absorption peaks at 101”

  Varma 和 Vasudevan - 2020 - Extraction, Characterization, and Antimicrobial Ac DOI: 10.1021/acsomega.0c01903
• Acetate 信心 1.0

  “During the curing process of epoxy resin, the FTIR band intensity of C-O-C and C-O cm-1 of the anhydrous epoxoid ring at 917 and 863 decreased, and the band intensity cm-1 at 1672 increased [35,39,54], indicating complete resin polymerizati”

  Abu Zeid 和 Edrees - 2022 - Hydration Characterization of Two Generations of M DOI: 10.3390/app12073517
• 信心 1.0

  “ESI-MS molecular-ion peak 863.21, corresponding to H+ + 1H [Zn(L7) ].”

  Gusev 等 - 2020 - Synthesis, Photoluminescence and Electrical Study DOI: 10.3390/ma13245698
• 信心 1.0

  “A characteristic cm-1 stored in an airtight glass vial, labeled as ZnO-NPs, and was band observed at 863 corresponds to the Zn-O stretching stored at room temperature for physicochemical, morphological bond (Ta¸s et al., 2000;”

  Biogenic Synthesis and Characterization of Antimicrobial and Antiparasitic Zinc Oxide (ZnO) Nanoparticles Using Aqueous Extracts of the Himalayan Columbine (Aquilegia pubiflora) DOI: 10.3389/fmats.2020.00249
• Aromatic ring 信心 1.0

  “In the fingerprint region of FA, the ≤ ± 0.05) among the samples (63.98 0.34 %), but as the concentration cm(cid:0) cm(cid:0) 1 1 characteristics peaks at 863 and 804 correspond to the two ± of RSN increased to 20 % EE declined to 52.23 0.7”

  Ferulic acid loaded pickering emulsions stabilized by resistant starch nanoparticles using ultrasonication: Characterization, in vitro release and nutraceutical potential DOI: 10.1016/j.ultsonch.2022.105967
• Oxygen heterocycle 信心 1.0

  “LLM confirmed rule peak-group candidate”

  Water Immersion Aging of Epoxy Resin and Fique Fabric Composites: Dynamic–Mechanical and Morphological Analysis DOI: 10.3390/polym14173650