What absorbs at 3195 cm⁻¹ in an FTIR spectrum?
A band near 3195 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 4 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 3 | 1.0 |
| Ammonium | 1 | 1 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
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Hydroxyl (O-H) confidence 1.0
“(1) Completely spectra:thesedonotshowdetectableOHabsorptionpeaksabovenoise.(2)Spectrawithdetectablediscrete 3596cm(cid:1)1 3371-3380, OH peaks: discrete peaks are observed at 3195, 3205, 3305, 3483, and with the most 3380cm(cid:1)1.”
Kilian 等 - 2016 - Dislocation creep of dry quartz DOI: 10.1002/2015JB012771 -
Hydroxyl (O-H) confidence 1.0
“LLM confirmed rule peak-group candidate”
Structural diversity of cocrystals formed from acridine and two isomers of hydroxybenzaldehyde: 3-hydroxybenzaldehyde and 4-hydroxybenzaldehyde DOI: 10.1039/d3ra02300a -
Ammonium confidence 1.0
“cm-1 cm-1 the spectrum shows the presence of the bands at 3195 and at 3020 and 2820 that can be assigned to coordinated ammonia and to ammonium ions, respectively.”
Preparation, Characterization and Catalytic Activity of Nickel Molybdate (NiMoO4) Nanoparticles DOI: 10.3390/molecules23020273 -
Hydroxyl (O-H) confidence 1.0
“FT-IR spectra attained from green-synthesized nanoparticles of nutmeg (Figure 6) FT-IR spectra attained from green-synthesized nanoparticles of nutmeg (Figure 6) cm-1 revealed bands at 3194.92 corresponding to -OH stretching, proving the pr”
Phytosynthesis of Copper Nanoparticles Using Extracts of Spices and Their Antibacterial Properties DOI: 10.3390/pr9081341
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