What absorbs at 1149 cm⁻¹ in an FTIR spectrum?
A band near 1149 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 |
|---|---|---|---|
| C-O single bond | 4 | 4 | 1.0 |
| Ester | 1 | 1 | 0.95 |
| Carbohydrate | 1 | 1 | 0.8 |
| Sulfate (SO4) | 1 | 0 | 0.8 |
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
-
C-O single bond 信心 1.0
“Explicit assignment: 'ester linkages (C-O stretch vibration) at 1149'.”
Akhgari 等 - 2013 - Indomethacin electrospun nanofibers for colonic dr DOI: 10.5681/apb.2013.014 -
Ester 信心 0.95
“Explicit assignment: peak at 1149 cm-1 indicates ester group.”
Ibrahim 等 - 2016 - Thermal and mechanical properties of gamma-irradia DOI: 10.1080/10420150.2016.1270945 -
信心 0.9
“Text: 'the band of deprotonated PANI (1137-1149 cm-1)'”
Jevremovic 等 - 2014 - Investigation of the effect of acid dopant on the DOI: 10.1016/j.cap.2014.06.018 -
信心 0.9
“Explicit assignment in text.”
Munot 等 - 2019 - Electrochemical Investigations on Semi-conducting DOI: 10.4152/pea.201901043 -
C-O single bond 信心 0.9
“C-O-C stretching mode”
Polu 等 - 2015 - Poly(ethylene oxide)-lithium difluoro(oxalato)bora DOI: 10.1007/s11581-015-1474-3 -
信心 0.9
“Explicitly stated: STCHO 1st peak (ca. 1149 cm-1) to 3rd peak height ratio.”
Xin 和 Yu - 2013 - Using ATR-FTIR to detect carbohydrate-related mol DOI: 10.1016/j.saa.2013.05.056 -
C-O single bond 信心 0.8
“Corresponds to n(C-O) groups”
Bakan 等 - 2019 - Synthesis, characterization, toxicity and in vivo DOI: 10.1007/s10965-019-1901-7 -
信心 0.8
“Text: 'cm-1 to the vibrations of the glucose pyranose unit'”
Hazrati 等 - 2021 - Extraction and Characterization of Potential Biode DOI: 10.3390/polym13040584
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