What absorbs at 1495 cm⁻¹ in an FTIR spectrum?
A band near 1495 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
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1.0 |
| N-O bond | 1 | 1 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Carbonate | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 0 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Alkyl C-H confidence 1.0
“3080cm-1 1590cm-1 1450cm-1 and Raman band at are assigned to C H stretching and the peaks at 1495 and are due at 1600, vibrations.”
Nagabalasubramanian 等 - 2009 - FTIR and FT Raman spectra, vibrational assignments DOI: 10.1016/j.saa.2009.02.044 -
Hydroxyl (O-H) confidence 1.0
“At 1650 the hydroxyl group bending vibrations were identified for all Thebandsat1322and1495cm-1 belongtovibrationsofC-OandC=C[27].”
New Hybrid PVC/PVP Polymer Blend Modified with Er2O3 Nanoparticles for Optoelectronic Applications DOI: 10.3390/polym15030684 -
Alkyl C-H confidence 1.0
“1601 amide II 1530 -C=Caromatic stretching 1495 C-H bending”
Benbow 等 - 2018 - A Novel Soft Contact Piezo-Controlled Liquid Cell DOI: 10.1038/s41598-018-34673-4 -
Carbonate confidence 1.0
“Furthermore, cm-1 a broad band centered in 1495 may be attributed to bidentate carbonates formed from Zr4+ N the interaction between atmospheric CO and O 2pairs, as well a weak broad band in 2”
Halla Velazquez-Jimenez 等 - 2014 - Zirconium-Carbon Hybrid Sorbent for Removal of Flu DOI: 10.1021/es403929b. -
Water (H2O) confidence 1.0
“7B, a groupprovided by either a water molecule or the backbone NH cm-1 cm-1 16O band at 1495 groupofatruncatedleucineresidue.Notethatintheseandpreviousviin the spectrum downshifts 14 to cm-1 cm-1 18O brational frequencycalculations thephyty”
Hastings - 2015 - Vibrational spectroscopy of photosystem I DOI: 10.1016/j.bbabio.2014.07.014 -
N-O bond confidence 1.0
“Temperature-programmeddecompositionofsurfacenitratesonPt/TiO2 afterNO-O2 1520cm-1 1495cm-1 at and [17]) and free nitrates (IR bands at 2/He at After He purge, the sample is again exposed to NO-O”
Catalytic oxidation of NO over TiO2 supported platinum clusters. II: Mechanism study by in situ FTIR spectra DOI: 10.1016/j.cattod.2010.04.038 -
Alkyl C-H confidence 1.0
“The spectrum of aminopropyl-modified silica (spectrum b) additionally shows peaks cm-1, assigned to the stretching vibrations of the -CH2 group, a peak at at 2929 and 2883 1562 cm-1 assigned to the bending vibration of N-H bond, and a peak”
A Novel Pd-P Nano-Alloy Supported on Functionalized Silica for Catalytic Aerobic Oxidation of Benzyl Alcohol DOI: 10.3390/catal12010020
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