What absorbs at 3180 cm⁻¹ in an FTIR spectrum?
A band near 3180 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 7 cited sources
가능한 작용기 할당
| 작용기 | 지원 사실 | 인용 출처 | 최고 신뢰도 |
|---|---|---|---|
| N h | 3 | 2 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Amine primary | 1 | 1 | 0.8 |
| Aromatic ring | 1 | 0 | 1.0 |
| Alkene (C=C) | 1 | 0 | 1.0 |
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이 할당의 배경이 되는 문헌
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Water (H2O) 신뢰도 1.0
“significant the water peaks (3180, 3400, 3480 Table 1 summarizes the original spectra, a breakup of hydrogen bonds during activation.”
Yoo 等 - 2014 - Contraction-Induced Changes in Hydrogen Bonding of DOI: 10.1021/jz5000879 -
Alkyl C-H 신뢰도 1.0
“LLM confirmed rule peak-group candidate”
Modified Potato Starch as a Potential Retardant for Prolonged Release of Lidocaine Hydrochloride from Methylcellulose Hydrophilic Gel DOI: 10.3390/pharmaceutics15020387 -
N h 신뢰도 1.0
“Stretching vibrations of -NH.”
Mesoporous ZnAl2Si10O24 nanofertilizers enable high yield of Oryza sativa L. DOI: 10.1038/s41598-020-67611-4 -
Hydroxyl (O-H) 신뢰도 1.0
“A medium or weak broad band with a maximum at around cm-1 ν(O-H) 3432 (2), 3490 (3), and 3180 (4) can be assigned to the OH stretching vibrations, of OH 3452 (1), 3432 (2), 3490 (3), and 3180 cm-1 (4) can be assigned to the OH stretching vi”
New Coordination Compounds of CuII with Schiff Base Ligands—Crystal Structure, Thermal, and Spectral Investigations DOI: 10.3390/cryst10111004 -
신뢰도 1.0
“3A, top cm-1 (N-H stretch), curve) features vibrational modes at 3180 cm-1”
Szostak 等 - 2019 - Nanoscale mapping of chemical composition in organ DOI: 10.1126/sciadv.aaw6619 -
Hydroxyl (O-H) 신뢰도 1.0
“The bands of choline cm-1 cm-1 cm-1 C=O chloride-PHA were observed at 3180 for O-H stretching, 1681 for stretching, 1581”
Zhuang 等 - 2020 - Observation of Potential Contaminants in Processed DOI: 10.3390/app10124345 -
Amine primary 신뢰도 0.8
“N-H stretching of primary amines”
High iodine adsorption by polyethyleneimine impregnated nanosilica sorbents DOI: 10.1016/j.micromeso.2019.109586
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