What absorbs at 437 cm⁻¹ in an FTIR spectrum?
A band near 437 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
빠른 답변
A band near 437 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
| 작용기 | 지원 사실 | 인용 출처 | 최고 신뢰도 |
|---|---|---|---|
| Metal oxygen | 3 | 3 | 1.0 |
| Silicon (Si) | 2 | 2 | 1.0 |
| Silicon-oxygen (Si-O) | 2 | 2 | 1.0 |
| Silicate | 1 | 1 | 1.0 |
| Triglyceride | 1 | 1 | 1.0 |
| Fatty acid | 1 | 1 | 1.0 |
| Bromine | 1 | 1 | 1.0 |
| Chlorine | 1 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| N-O bond | 1 | 1 | 1.0 |
| Metalloid oxygen | 1 | 1 | 0.9 |
| Methoxy (OCH3) | 1 | 0 | 1.0 |
| Methacrylate | 1 | 0 | 1.0 |
| C-O single bond | 1 | 0 | 1.0 |
| Acetate | 1 | 0 | 1.0 |
순위는 단일 권위 규칙이 아닌 축적된 문헌 증거를 반영합니다. 항상 샘플 상황에 대해 확인하세요.
가능한 재료
| 재료 | 지원 피크 | 겹치는 그룹 | 인용 출처 |
|---|---|---|---|
| ZnO | 437, 1400, 3430 | Metal oxygen | 3 |
동일한 문헌 풀이 이 밴드와 하나 이상의 추가 특징 피크를 지원하는 경우에만 물질이 표시됩니다.
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 437 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
- 하나의 고립된 밴드를 재료의 증거로 취급하고 최소 하나 또는 두 개의 지원 피크를 확인하지 않는 것.
- 겹침 무시: 여러 작용기가 동일한 파수 근처에서 기여할 수 있습니다.
- 첨가제, 혼합물, 산화 또는 오염이 스펙트럼을 왜곡할 수 있는 경우 검증을 건너뜁니다.
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
-
신뢰도 1.0
“We have observed six absorption peaks at 437, 917, 2157, 2852, 2925 and cm-1 3749 which are related to Zn-O, Al-N, N-O, Alkaline group, C-H stretching vibration and Zn-Al vibrational modes respectively.”
Enhancement of Al-N co-dopant solubility in ZnO by high temperature thermal annealing DOI: 10.1016/j.ceramint.2018.10.005 -
신뢰도 1.0
“The 437cm-1 E characteristic peak, assigned to the non-polar 2 optical phonon mode, is present for the pure and Mn-doped ZnO thin films, with a similar shape.”
Kharroubi 等 - 2012 - Mn doping effect on the structural properties of Z DOI: 10.1088/0031-8949/86/01/015805 -
신뢰도 1.0
“The peak at around 437 is assigned to sized Mg(OH) prepared using EDA and TEA (Fig.”
Mageshwari 和 Sathyamoorthy - 2012 - Studies on Photocatalytic Performance of MgO Nanop DOI: 10.1007/s12666-011-0106-5 -
신뢰도 1.0
“The Raman bands at 583 and intensity of Raman band at 437 decreased with cm-1 are associated with structural disorders, such as oxygen doping concentration into ZnO that may be attributed to 660 Mn vacancy, the Zn interstitial, impurity ato”
Vinod 等 - 2015 - Quenching and blue shift of UV emission intensity DOI: 10.1016/j.mseb.2014.10.004 -
Silicon (Si) 신뢰도 1.0
“437cm-1 phological change observed in the synthesized The band at is related to the Si-O-Si bending geopolymer is due to the dissolution of metakaolin aluvibration.”
El Alouani 等 - 2019 - Preparation, Characterization, and Application of DOI: 10.1155/2019/4212901 -
신뢰도 1.0
“Wefoundthe520cm-1,460cm-1,437cm-1 and417cm-1 cm-1 peakswithinthe300-600 range, due to the presence of C-X bonds (X = halogen: Cl, Br, I), as well as of plane defor-”
Determination of the Conservation State of Some Documents Written on Cellulosic Support in the Poni-Cerntescu Museum, Iași City in Romania DOI: 10.3390/app11188726 -
Fatty acid 신뢰도 1.0
“3A shows the FTIR spectra between 4000 and 400 The oil spectrum is characterized 437 by several bands (peaks), mainly attributed to the presence of oleic and linoleic fatty acids, 438 triglycerides and peroxides.”
Kharbach 等 - 2021 - New insights into the Argan oil categories charact DOI: 10.1016/j.talanta.2020.122073 -
Metal oxygen 신뢰도 1.0
“[65] assigned the band at 437 cm-1 in silicate structures to Mg-O stretch + O-Si-O”
Zviagina 等 - 2020 - Distinguishing Features and Identification Criteri DOI: 10.3390/min10020153
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FTIR 스펙트럼을 업로드하면 몇 초 안에 전체 해석 보고서(문헌 인용이 포함된 피크 할당, 라이브러리 매칭, 신뢰도 평가 증거 체인)를 받을 수 있습니다.