What absorbs at 1007 cm⁻¹ in an FTIR spectrum?

Quick answer

A band near 1007 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.

Posibles asignaciones de grupos funcionales

La clasificación refleja la evidencia acumulada de la literatura, no una única regla autorizada. Siempre confirme según el contexto de su muestra.

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 1007 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.

Literatura detrás de estas asignaciones

• Metal oxo confianza 1,0

  “LLM confirmed rule peak-group candidate”

  Optical and structural characterization of quadruplet and quintuplet molybdenum-containing phosphate glasses DOI: 10.1142/S0217984916502705
• Water (H2O) confianza 1,0

  “l cm-1 (cid:1)C, "degenerate" between 200 and 300 phosphoric acid undergoes condensa- [P(OH) very strong bands at 1007 and 1165 3 43tion reactions with loss of water molecules, leading to the stretching mode of PO ], a weak band at and PO s”

  Yi 等 - 2011 - Phosphine Adsorption Removal from Yellow Phosphoru DOI: 10.1021/ie101622x
• C-O single bond confianza 1,0

  “Peak was observed at 1006.7 of smooth and non-homogeneous surface, while the 6b the the C-OH stretch vibration within the cellulosic structure.”

  Nanobiocatalyst beds with Fenton process for removal of methylene blue DOI: 10.1007/s13201-021-01367-8
• Sulfate (SO4) confianza 1,0

  “The characteristic peaks at 1131 and cm-1 1007 correspond to the stretching vibration of sulfate (-S = O).”

  Development of New Amphiphilic Catalytic Steam Additives for Hydrothermal Enhanced Oil Recovery Techniques DOI: 10.3390/catal12080921
• Aromatic ring confianza 1,0

  “However, the representative peaks for aromatic carbon ap1007/s11356-013-1659-0.”

  Simultaneous immobilization of heavy metals in soil environment by pulp and paper derived nanoporous biochars DOI: 10.1007/s40201-018-0294-6
• Siloxane (Si-O-Si) confianza 1,0

  “Part of doublet assigned to Si-O-Si.”

  Bao 等 - 2018 - Manufacturing and characterization of long-acting DOI: 10.1016/j.ijpharm.2018.09.004.
• Silicon (Si) confianza 1,0

  “the one located at 1089 cm-1 in MK to 1007 cm-1 due to the asymmetric stretching of the Si-O-T band”

  Metakaolin-Based Geopolymer with Added TiO2 Particles: Physicomechanical Characteristics DOI: 10.3390/coatings7120233
• Carbohydrate confianza 1,0

  “2, however, the contribution of glucose cannot be neglected, especially due to the bands at 1007, 1045, 1072 and cm-1.”

  Leopold 等 - 2011 - Quantification of carbohydrates in fruit juices us DOI: 10.3233/SPE-2011-0529