What absorbs at 714 cm⁻¹ in an FTIR spectrum?
A band near 714 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 5 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Alkyl C-H | 1 | 1 | 1.0 |
| Borate | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
| Carbonate | 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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Carbonate confidence 1.0
“Again, we mainly focus on two carbonate absorption 714 probably due to the existence of a very small bands, the out-of-plane bending mode amount of calcite in the geogenic dolomite.”
Long 等 - 2012 - From synthetic to biogenic Mg-containing calcites DOI: 10.1039/c2cp22453d -
C c single bond confidence 1.0
“Additionally, the weak band cm-1 at 714 may be due to C-C bending, which supports Wave number Functional group (cm-1)”
Basha 等 - 2016 - Effect of ultra graphite application on morphologi DOI: 10.18520/cs/v111/i12/2031-2035 -
Ring structure confidence 1.0
“Finally, the fingerprint zone of the PY Raman spectrum is dominated by the intense band at cm-1, 714 which is attributed to the ring-breathing mode [53].”
Vibrational Study (Raman, SERS, and IR) of Plant Gallnut Polyphenols Related to the Fabrication of Iron Gall Inks DOI: 10.3390/molecules27010279 -
Borate confidence 1.0
“The third cm-1 band positioned nearly at 714 refers to the bending of B-O-B in trigonal BO units and the last band at 3”
Structural, optical, and cytotoxicity studies of laser irradiated ZnO doped borate bioactive glasses DOI: 10.1038/s41598-023-34458-4 -
Alkyl C-H confidence 1.0
“LLM confirmed rule peak-group candidate”
Adhesive Hybrid SiO2.01C0.23Hx Nanoparticulate Coating on Polyethylene (PE) Separator by Roll-to-Roll Atmospheric Pressure Plasma DOI: 10.3390/coatings9030190
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