What absorbs at 1010 cm⁻¹ in an FTIR spectrum?

Quick answer

A band near 1010 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 1010 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

• Metal oxygen

  Reported band

  1010 cm-1

  Assignment

  Metal oxygen

  Material / context

  nanotubes; polydiphenylamine; SWNT functionalized with polydiphenylamine

  Single-walled carbon nanotubes functionalized with polydiphenylamine as active materials for applications in the supercapacitors field DOI: 10.1016/j.diamond.2012.12.006
• Acetate

  Reported band

  1010 cm-1

  Assignment

  Acetate

  Material / context

  parthenium hysterophorus; magnetite-impregnated biochar of Parthenium hysterophorus

  Magnetite-impregnated biochar of parthenium hysterophorus for adsorption of Cr(VI) from tannery industrial wastewater DOI: 10.1007/s13201-023-01880-y
• Alkyl C-H

  Reported band

  1010 cm-1

  Assignment

  Alkyl C-H

  Material / context

  CF-PEEK; PEEK

  Detecting, characterising and assessing PEEK’s and CF-PEEK’s thermal degradation in rapid high-temperature processing DOI: 10.1016/j.polymdegradstab.2022.110096
• Phosphate (PO4)

  Reported band

  1010 cm-1

  Assignment

  Phosphate (PO4)

  Material / context

  bone; bone powder

  Kontopoulos 等 - 2018 - Preparation of bone powder for FTIR-ATR analysis DOI: 10.1016/j.vibspec.2018.09.004
• Sulfur

  Reported band

  1010 cm-1

  Assignment

  Sulfur

  Material / context

  poly (aryl ether sulfone) hemodialysis; poly (aryl ether sulfone) hemodialysis membrane

  A case study of poly (aryl ether sulfone) hemodialysis membrane interactions with human blood: Molecular dynamics simulation and experimental analyses DOI: 10.1016/j.cmpb.2020.105742
• Carboxyl (COOH)

  Reported band

  1010 cm-1

  Assignment

  Carboxyl (COOH)

  Material / context

  tranexamic acid

  Validation of the Developed Zero-Order Infrared Spectrophotometry Method for Qualitative and Quantitative Analyses of Tranexamic Acid in Marketed Tablets DOI: 10.3390/molecules26226985
• Hydroxyl (O-H)

  Reported band

  1010 cm-1

  Assignment

  Hydroxyl (O-H)

  Material / context

  PP-R micro-specimen

  Temperature dependent degradation of phenolic stabilizers and ageing behaviour of PP-R micro-specimen DOI: 10.1016/j.polymdegradstab.2023.110311