What absorbs at 1453 cm⁻¹ in an FTIR spectrum?

Quick answer

A band near 1453 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.

Possible functional-group assignments

Ranking reflects accumulated literature evidence, not a single fixed rule. Always confirm against your sample context.

Possible materials

Materials are shown only when the same literature pool supports this band and at least one additional characteristic peak.

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 1453 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.

Literature behind these assignments

• Acetate

  Reported band

  1453 cm-1

  Assignment

  Acetate

  Material / context

  CaSO4; CaCO3-CaSO3·0.5H2O-CaSO4·2H2O mixtures; CaCO3–CaSO3·0.5H2O–CaSO4·2H2O mixtures

  Quantification of CaCO3–CaSO3·0.5H2O–CaSO4·2H2O mixtures by FTIR analysis and its ANN model DOI: 10.1016/j.matlet.2003.07.008
• Acetate

  Reported band

  1453 cm-1

  Assignment

  Acetate

  Material / context

  polypyrrole derivatives; P(AN-co-VAc)

  Characterization of conductive poly(acrylonitrile-co-vinyl acetate) composites: Matrix polymerization of pyrrole derivatives DOI: 10.1007/s12221-011-0151-z
• Alkyl C-H

  Reported band

  1453 cm-1

  Assignment

  Alkyl C-H

  Material / context

  polyhydroxybutyrate; polyhydroxybutyrate (PHB); extracted polymer from A. platensis

  Enhanced polyhydroxybutyrate (PHB) accumulation in heterotrophically grown Arthrospira platensis under nitrogen deprivation DOI: 10.1007/s10811-020-02272-4
• Alkyl C-H

  Reported band

  1453 cm-1

  Assignment

  Alkyl C-H

  Material / context

  copper oxide; CuO NPs

  Biosynthesis of copper oxide nanoparticles and their potential synergistic effect on alloxan induced oxidative stress conditions during cardiac injury in Sprague–Dawley rats DOI: 10.1016/j.jphotobiol.2019.111557
• Alkyl C-H

  Reported band

  1453 cm-1

  Assignment

  Alkyl C-H

  Material / context

  CuO NPs

  Biologically synthesized copper oxide nanoparticles enhanced intracellular damage in ciprofloxacin resistant ESBL producing bacteria DOI: 10.1016/j.micpath.2018.12.017
• Alkyl C-H

  Reported band

  1453 cm-1

  Assignment

  Alkyl C-H

  Material / context

  WPCs; WPCs samples

  Correlation of 13C‐NMR analysis with fungal decay tests of polymeric structural wood constituents. II. Ground contact tests DOI: 10.1002/app.24358
• Acetate

  Reported band

  1453 cm-1

  Assignment

  Acetate

  Material / context

  KBA

  Evaluation of the solubility of 11-keto-β-boswellic acid and its histological effect on the diabetic mice liver using a novel technique DOI: 10.14202/vetworld.2021.1797-1803
• Alkyl C-H

  Reported band

  1453 cm-1

  Assignment

  Alkyl C-H

  Material / context

  nano-sized; nano-sized layered double hydroxides; HT-DDDIOL

  Modification of nano-sized layered double hydroxides by long-chain organic aliphatic surfactants DOI: 10.2298/JSC0803321A