What absorbs at 3418 cm⁻¹ in an FTIR spectrum?
A band near 3418 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Hydroxyl (O-H) | 6 | 6 | 0.95 |
| Water (H2O) | 2 | 2 | 1.0 |
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。
這些指派背後的文獻
-
Water (H2O) 信心 1.0
“The characteristic bands around 3418 are attributed to the presence of a small amount of water in the dried gel of YFeO 3.”
Asif 等 - 2021 - Evolution of structure and improvement in dielectr DOI: 10.1016/j.ceramint.2020.11.005 -
Water (H2O) 信心 1.0
“explicit assignment”
Mino 等 - 2012 - Particles Morphology and Surface Properties As Inv DOI: 10.1021/jp303942h -
Hydroxyl (O-H) 信心 0.95
“Explicit assignment: 'broad band centered at 3418 is due to the stretching vibration of the adsorbed water hydroxyl group (O-H) and the surface hydroxyl group'”
Xiang 等 - 2023 - Preparation of aluminium-hydroxide-modified diatom DOI: 10.1038/s41598-023-30901-8 -
Hydroxyl (O-H) 信心 0.9
“Stretching vibration of O-H groups”
Ma 等 - 2020 - Extraction of Low Methoxyl Pectin from Fresh Sunfl DOI: 10.1021/acsomega.0c00928 -
信心 0.9
“Explicit assignment in text.”
Majumdar 和 Kar - 2023 - Biosynthesis, characterization and anthelmintic ac DOI: 10.1038/s41598-023-34221-9 -
Hydroxyl (O-H) 信心 0.9
“unperturbed ν(OH) modes of water”
Mino 等 - 2013 - Rutile Surface Properties Beyond the Single Crysta DOI: 10.1021/jp401916q -
Hydroxyl (O-H) 信心 0.9
“characteristic absorption peak of -OH stretching vibration in control group”
Wang 等 - 2022 - Effects of High Hydrostatic Pressure Pretreatment DOI: 10.3390/foods11010029 -
Hydroxyl (O-H) 信心 0.8
“Peak moved after liquefaction, more O-H exposed”
Jin 等 - 2021 - Preparation of Microspheres and Microfiber Membran DOI: 10.1002/app.39967
有包含此波峰的圖譜嗎？
上傳您的FTIR圖譜，幾秒內即可獲得完整的解讀報告——包含帶有文獻引用的峰位指派、圖譜庫比對以及信心等級評估的證據鏈。
解讀我的圖譜