What absorbs at 1307 cm⁻¹ in an FTIR spectrum?

Quick answer

A band near 1307 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.

সম্ভাব্য কার্যকরী-গ্রুপ অ্যাসাইনমেন্ট

র্যাঙ্কিং জমা হওয়া সাহিত্য প্রমাণ প্রতিফলিত করে, একটি একক কর্তৃত্বপূর্ণ নিয়ম নয়। সর্বদা আপনার নমুনা প্রসঙ্গের বিরুদ্ধে নিশ্চিত করুন।

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 1307 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.

এই অ্যাসাইনমেন্টগুলোর পেছনে সাহিত্য

• C-O single bond আত্মবিশ্বাস 1.0

  “On the other hand, the characteristic IR Soluplus1 (C(cid:1)(cid:1)O ((cid:1)(cid:1)C(cid:1)(cid:1)O ring), absorption 1307 of acidic group), 1223 stretching, ether bands and their assignments for pure and Soluplus1are (C(cid:1)(cid:1)Cl) 3”

  Thermoanalytical and Fourier transform infrared spectral curve-fitting techniques used to investigate the amorphous indomethacin formation and its physical stability in Indomethacin-Soluplus® solid dispersions DOI: 10.1016/j.ijpharm.2015.10.042
• Amide আত্মবিশ্বাস 1.0

  “The peak at 1163 is because of the presence of thequinonoidring(N]Q]N)andthepeakat1307cm(cid:1)1isdue cm(cid:1)1 C-N to the stretching mode vibrations.”

  Facile simultaneous synthesis of tetraaniline nanostructures/silver nanoparticles as heterogeneous catalyst for the efficient catalytic reduction of 4-nitrophenol to 4-aminophenol DOI: 10.1039/d0ra03327h
• Boron nitrogen আত্মবিশ্বাস 1.0

  “without a negative bias voltage shows two bands, at 1307 and 786 These bands represent the in-plane (B-N) stretching mode and out-of-plane (B-N-B) bending modes sp2 (h-BN) of the bonded hexagonal phase, respectively [35,36].”

  Bias-Enhanced Formation of Metastable and Multiphase Boron Nitride Coating in Microwave Plasma Chemical Vapor Deposition DOI: 10.3390/ma14237167
• Acetate আত্মবিশ্বাস 1.0

  “-C-Nstretching 1358, 1348 - - - - - - - 1360 - 1357 C-O stretching - - - - - - - - - - 1307 ester -C-O-C stretch-”

  Mikolaszek 等 - 2022 - Microscopic and Spectroscopic Imaging and Thermal DOI: 10.3390/polym14142888
• Acetate আত্মবিশ্বাস 1.0

  “The absorption peaks at the 1307 and 1170 regions are assigned to -C-O-C -C-O-C vibrations [35].”

  Influence of Oxygen Diffusion on Thermal Ageing of Cross-Linked Polyethylene Cable Insulation DOI: 10.3390/ma13092056
• Alkyl C-H আত্মবিশ্বাস 1.0

  “Polymers 2021, 13, x 8 of 16 1307 cm-1 corresponds to a -CH 2-group (amide III), due to the formation of CO-NH components of protein.”

  Isolation of Chitin from Black Soldier Fly (Hermetia illucens) and Its Usage to Metal Sorption DOI: 10.3390/polym13050818
• আত্মবিশ্বাস 0.9

  “Explicit assignment in text.”

  Juarez-de la Rosa 等 - 2012 - Effects of thermal treatments on the structure of DOI: 10.1007/s10853-011-5878-9