What absorbs at 590 cm⁻¹ in an FTIR spectrum?

Quick answer

A band near 590 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.

가능한 작용기 할당

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Spectrum logic

This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 590 cm⁻¹ is usually not enough for material identification by itself.

Real-world usage

This type of query is common in polymer identification, unknown plastic screening, QC troubleshooting, recycled-material verification, and literature-backed peak assignment review.

Common mistakes

• Treating one isolated band as proof of a material without checking at least one or two supporting peaks.
• Ignoring overlap: multiple functional groups can contribute near the same wavenumber.
• Skipping validation when additives, blends, oxidation, or contamination may distort the spectrum.

Verification advice

When ambiguity remains, validate the hypothesis with DSC, GC-MS, or TGA, especially for blends, degraded samples, and filled polymers.

이 할당의 배경이 되는 문헌

• Alkyl C-H 신뢰도 1.0

  “for the Cu-O bond were observed at 526 590 cm-1 cm-1 Medium duplet for C-H stretching at 2830-2695 and and 582 for calcined NPs made from cauliflower, cm-1 C-H bending at 1383 was noted for aldehyde.”

  Green Fabrication of Copper Oxide Nanoparticles: A Comparative Antibacterial Study Against Gram-Positive and Gram-Negative Bacteria DOI: 10.1007/s13369-021-05767-5
• Metal oxygen 신뢰도 1.0

  “2 cm-1 O-Ni-O Raman band observed at 590 is due to the symmetric stretching vibration of NiO units.”

  Structural and electrochemical properties of LiNiO2 cathodes prepared by solid state reaction method DOI: 10.1007/s11581-020-03751-x
• 신뢰도 1.0

  “From Figure cm-1 Zn-O) Figure 3, it is seen that the absorption band of zinc oxide (stretching of was between 400 3, it is seen that the absorption band of zinc oxide (stretching of Zn-O) was between 400 cm-1 and 590 cm-1, cm-1”

  Synthesis of CuO/ZnO Nanocomposites and Their Application in Photodegradation of Toxic Textile Dye DOI: 10.3390/jcs3030091
• 신뢰도 1.0

  “The characteristic absorp4 cm-1 tion peak at 590 is attributed to the FeO bond, which confirmed the presence of Fe 3O microspheres.”

  Wang 等 - 2020 - Evaluation of Different Blood Circulating miRNAs f DOI: 10.1166/jnn.2020.17160
• S s 신뢰도 1.0

  “The peak in 590 was (a) due to the disulfide bonds (S-S).”

  Optimization of food-grade medium for co-production of bioactive substances by Lactobacillus acidophilus LA-5 for explaining pharmabiotic mechanisms of probiotic DOI: 10.1007/s13197-020-04894-5
• Metal oxygen 신뢰도 1.0

  “On increasing the concentration of CuO-NPs to 15mg/L exhibited Cu-O specified peaks in the range from 590 to decrease in callus induction frequency is observed.”

  Anwaar 等 - 2016 - The Effect of Green Synthesized CuO Nanoparticles DOI: 10.3389/fpls.2016.01330
• Ring structure 신뢰도 1.0

  “Infrared absorption around 1480 cm-1 and 590 (ring in plane vibration) are indications that at least a part of the monomer ring”

  Dams 等 - 2006 - Plasma deposition of thiophene derivatives under a DOI: 10.1002/cvde.200606483
• Aromatic ring 신뢰도 1.0

  “The Young's modulus obtained for PLACL, 1,460 1,262 The phenolic (OH) group, C=C cm-1, PLACL/SF, PLACL/SF/VE, and PLACL/SF/VE/Cur were stretching of alkene and aromatic ring at 3,590 cm-1, cm-1 1.51 MPa, 2.86 MPa, 4.62 MPa, and 5.57 MPa, re”

  Gandhimathi 等 - 2014 - Biocomposite nanofibrous strategies for the contro DOI: 10.2147/IJN.S65335