What absorbs at 1479 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 1479 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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가능한 재료

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스펙트럼 로직

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 1479 cm⁻¹ is usually not enough for material identification by itself.

실제 사용

이러한 유형의 질의는 고분자 식별, 미지 플라스틱 스크리닝, QC 문제 해결, 재활용 재료 검증 및 문헌 기반 피크 할당 검토에서 일반적입니다.

일반적인 실수

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검증 조언

모호성이 남아 있는 경우, 특히 혼합물, 분해된 시료 및 충전 폴리머의 경우 DSC, GC-MS 또는 TGA로 가설을 검증하십시오.

이 할당의 배경이 되는 문헌

• Acetate 신뢰도 1.0

  “The results obtained reveal that (i) the A-¥ C-O cm-1 reflecting the stretching mode of Q in the semiquinone most pronounced band at 1479 cm-1 anion radical remains invariant to "iron depletion" while it shifts by 4 and 2 to lower frequenci”

  Noguchi 等 - 1999 - Comparative FTIR analysis of the microenvironment DOI: 10.1021/bi981759e
• N-O bond 신뢰도 1.0

  “no band shifts of the band at 1479 cm -~ are seen in the spectra 8 Breton, J., Boullais, C., Burie, J.-R., Nabedryk, E.”

  FTIR spectroscopy shows weak symmetric hydrogen bonding of the QB carbonyl groups in Rhodobacter sphaeroides R26 reaction centres DOI: 10.1016/0014-5793(95)00805-J
• Aromatic ring 신뢰도 1.0

  “indicate silica and The peaks at 1479.2 and 1600 Pb×exp{ exp[ t)+1]} C-- exhibit C bending, consistent with various aromatic ring modes and Rm×e”

  Enhancement of biogas production from individually or co-digested green algae Cheatomorpha linum using ultrasound and ozonation treated biochar DOI: 10.1016/j.ultsonch.2022.106197
• Alkyl C-H 신뢰도 1.0

  “The C-H bending Raman peaks of Type 1 SSA tion of 0.2M alanine and 0.1M MgCl standard chemicals 2 1433/1457/1479cm-1, are split into which correspond to and collected on Al foil.”

  Eom 等 - 2016 - Single-particle investigation of summertime and wi DOI: 10.5194/acp-16-13823-2016
• Amide 신뢰도 1.0

  “cm(cid:5)1 cm(cid:5)1 and 607.7 stretching, and absorption bands between 1479.1 TheFTIRspectrumwasusedtoidentifythefunctionalgroupofactive cm(cid:5)1 are characteristic of the amide II region and bands from 536.9 to componentsbasedonthepeak”

  Phytochemical screening, polyphenols, flavonoids and tannin content, antioxidant activities and FTIR characterization of Marrubium vulgare L. from 2 different localities of Northeast of Morocco DOI: 10.1016/j.heliyon.2020.e05609
• Acetate 신뢰도 1.0

  “Bcm-1 A strong positive peak at 1479 (due to a C-O stretching of Q [8]) is observed in the spectrum recorded after the 1st flash.”

  Mezzetti - 2010 - Rapid-scan FTIR difference spectroscopy applied to DOI: 10.3233/SPE-2010-0435
• Alkyl C-H 신뢰도 1.0

  “14 3015 285013 ) ) cm-1 12 Meanwhile, bands at 1479 and 1370 related to the C-H .”

  Moussa 等 - 2018 - Nature of Active Nickel Sites and Initiation Mecha DOI: 10.1021/acscatal.7b03970
• C=n 신뢰도 1.0

  “The appearance of the instinct band at 2865.16 cm-1 (C-H) showed alkanes present, the band at 2031.92 cm-1 confirmed the presence of alkynes, and the band at 1478.96 cm-1 revealed the N-C and N=C groups.”

  Naveed 等 - 2022 - Green Synthesis of Silver Nanoparticles Using the DOI: 10.3390/molecules27134226