What absorbs at 1342 cm⁻¹ in an FTIR spectrum?
A band near 1342 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
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 | 4 | 4 | 1.0 |
| Carbonate | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Borate | 1 | 1 | 1.0 |
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
“ofelectrochemicalpolarisationat0.65V-intheethanoloxidation to the CH wagging of adsorbed ethanol via the O atom [21] 2 1338/1342cm-1).”
In situ spectroelectrochemical measurements during the electro-oxidation of ethanol on WC-supported Pt-black, based on sum-frequency generation spectroscopy DOI: 10.1016/j.jpowsour.2010.01.017 -
Borate 置信度 1.0
“C-O For instance, the stretching mode from the sixcm-1 member glucose ring is observed at 1107 after the PBAmonolayerwasexposedtoglucose,suggestiveofthe presenceofglucose.Also,shiftsandchangesinpeakprofile B-O cm-1, occur in the stretching”
Brewer 等 - 2004 - Infrared detection of a phenylboronic acid termina DOI: 10.1021/la035037m -
Alkyl C-H 置信度 1.0
“The 1342 band corresponding to CH wagging of trans conformation of 2 crystalline phase show a sharpe linear decrease as the fast neutrons fluence goes up.”
Polyethylene terephthalate degradation under reactor neutron irradiation DOI: 10.1016/j.radphyschem.2016.10.002 -
Alkyl C-H 置信度 1.0
“Among the more intense bands, we observe in the IR SE spectra the characteristic bands corresponding to the vibration modes of the trans C-O stretch (~976 cm-1), the ester C-C, C-O stretch (~1024 cm-1), the ethylene glycol CH2 wagging mode”
Laskarakis 等 - 2004 - A Spectroscopic Ellipsometry study of PET membrane DOI: 10.1002/masy.200450109 -
Alkyl C-H 置信度 1.0
“The weak peak at 1342 is correTwelve lated with CH bending (Nakanishi & Solomon, 1977) bands are shown at 1745-1744, 1683-1672, 1557-1553, C.S.”
Pappas 等 - 2008 - Identification and differentiation of goat and she DOI: 10.1016/j.foodchem.2007.07.034 -
Hydroxyl (O-H) 置信度 1.0
“Additionally, spectra of treated cm-1 substrata show the appearance of a band at 1342 O-H associated with bending vibration which is not unmodified present in the PU.”
Effect of PEG grafting density on surface properties of polyurethane substrata and the viability of osteoblast and fibroblast cells DOI: 10.1007/s10856-022-06668-1 -
Carbonate 置信度 1.0
“cm-1 the bands at 1370, 1457 and 1510 could be assigned to the symmetric and asymmetric the bands at 1370, 1457 and 1510 cm-1 could be assigned to the symmetric and asymmetric cm-1 stretching of monodentate carbonates, while the bands at 13”
Thermal and Plasma-Assisted CO2 Methanation over Ru/Zeolite: A Mechanistic Study Using In-Situ Operando FTIR DOI: 10.3390/catal13030481
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