What absorbs at 2934 cm⁻¹ in an FTIR spectrum?
A band near 2934 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
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| Alkyl C-H | 5 | 5 | 1.0 |
| Methyl | 2 | 2 | 1.0 |
| Lignin | 1 | 1 | 0.7 |
| Carbohydrate | 1 | 1 | 0.7 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
这些分配背后的文献
-
Alkyl C-H 置信度 1.0
“Explicit assignment: '2934/cm that represented methylene C-H vibrations'.”
Gao 等 - 2017 - Biodegradation of P(3HB-co-4HB) powder by Pseudomo DOI: 10.1007/s13205-017-0824-4 -
Methyl 置信度 1.0
“Text: 'methyl and methylene at 2934'”
Zhang 和 Zhou - 2022 - Industrial lignins the potential for efficient re DOI: 10.21203/rs.3.rs-453856/v1 -
置信度 0.9
“Attributed to stretching vibration of aliphatic C-H bonds”
Loulidi 等 - 2021 - Assessment of Untreated Coffee Wastes for the Remo DOI: 10.1155/2021/9977817 -
Alkyl C-H 置信度 0.9
“Explicit assignment: 'antisymmetric absorption peak of specific cm-1 (-CH2-).'”
Ma 等 - 2020 - Comparison of an Emulsionand Solution-Prepared A DOI: 10.1021/acsomega.0c00665 -
Alkyl C-H 置信度 0.9
“CH stretching mode”
Pourfarzad 等 - 2015 - Serish inulin and wheat biopolymers interactions i DOI: 10.1007/s13197-015-1939-4 -
Alkyl C-H 置信度 0.9
“explicit assignment in text”
Sangian 等 - 2018 - The structural modification of cassava starch usin DOI: 10.1590/1678-457X.18517 -
Methyl 置信度 0.8
“Text: 'groups at 2978, 2934, and 2865 and CO stretch mode at 1715 and -CH3'”
Duvernay 等 - 2010 - Chiral molecule formation in interstellar ice anal DOI: 10.1051/0004-6361/201015342 -
Carbohydrate 置信度 0.7
“Band peak of 2934 cm-1 among the fibers got diminished when the fiber loading of cellulose and lignin.”
Chandrasekaran 等 - 2022 - Mechanical and thermal properties of cotton-bamboo DOI: 10.14314/polimery.2022.11.4
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