What absorbs at 1112 cm⁻¹ in an FTIR spectrum?
A band near 1112 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 1112 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 |
|---|---|---|---|
| Methacrylate | 9 | 9 | 1.0 |
| C-O single bond | 9 | 9 | 1.0 |
| Acetate | 9 | 9 | 1.0 |
| Methoxy (OCH3) | 8 | 8 | 1.0 |
| Hydroxyl (O-H) | 4 | 4 | 1.0 |
| Amide | 3 | 3 | 1.0 |
| Alkyl C-H | 2 | 2 | 1.0 |
| Silicon-oxygen (Si-O) | 2 | 2 | 1.0 |
| Secondary amine | 2 | 2 | 1.0 |
| C n single bond | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| Carbon dioxide | 1 | 1 | 1.0 |
| Thiocarbonyl | 1 | 1 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Metal hydroxyl | 1 | 1 | 1.0 |
| Phosphorus | 1 | 1 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ester | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Oxygen heterocycle | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| N h | 1 | 1 | 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 |
|---|---|---|---|
| cellulose | 1112, 1735, 1650 | Acetate, Methacrylate, C-O single bond | 1 |
| cellulose nanocrystals | 1112, 1110, 1640 | Acetate, Methacrylate, C-O single bond | 1 |
| hemicelluloses | 1112, 1735, 1270 | C-O single bond, Methacrylate, Acetate | 1 |
| Polyester | 1112, 1700, 1250 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
| graphene oxide | 1112, 1150, 3400 | Methacrylate, Acetate, C-O single bond | 1 |
| lignin | 1112, 1035, 1510 | Methacrylate, Acetate, C-O single bond | 1 |
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 1112 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
-
Amide 신뢰도 1.0
“Furthermore, PPy/rGO shows the additional bands at 1112 and 814 attributed to the C-N and N-H stretching band of the PPy ring [59, 60].”
Fabrication of Palladium Nanoparticles Anchored Polypyrrole Functionalized Reduced Graphene oxide Nanocomposite for Antibiofilm Associated Orthopedic Tissue Engineering DOI: 10.1016/j.apsusc.2020.145403 -
Acetate 신뢰도 1.0
“On the other hand, bands at 1112 and cm-1 assigned to C-O stretching vibration in the epoxy chain [52,64,65].”
Pereira 等 - 2020 - Ballistic Performance of Ramie Fabric Reinforcing DOI: 10.3390/polym12112711 -
Acetate 신뢰도 1.0
“X-ray Diffraction (XRD) Analysis All the spectra of the sample exhibited O-H stretching absorption around 3200~3450 The crystallinity index and crystallite size for all samples were calculated using the cm-1, along with C-O stretching absor”
Rana 等 - 2023 - Morphological, Spectroscopic and Thermal Analysis DOI: 10.3390/polym15061530 -
Acetate 신뢰도 1.0
“rylate resins 2 cm-1 1112 (-C=O stretching band of the soft Fourier-transform infrared (FTIR) spectral segment).”
Salem 和 Salama - 2020 - Developing a New Class of UV-curable Polyurethane DOI: 10.21608/ejchem.2019.14853.1906 -
Carboxyl (COOH) 신뢰도 1.0
“Images of both factor correlation n 4 u 1127cm-1/1096cm-1 1112cm-1/1096cm-1 coefficients and the peak height ratios and s c demonstrated higher acid phosphate content in younger vs.”
Spevak 等 - 2013 - Fourier Transform Infrared Spectroscopic Imaging P DOI: 10.1007/s00223-013-9695-9. -
Acetate 신뢰도 1.0
“+ - 15 C-O stretching 1112, 1114 (vs) + -”
Allouch 等 - 2019 - CHARACTERIZATION OF COMPONENTS ISOLATED FROM ALGER DOI: 10.1016/j.pecs.2012.02.002 -
C-O single bond 신뢰도 1.0
“The peak at 1112 is characteristic of C-OH stretching.”
Radiation Synthesis of Edible Coating Films of Nanocurcumin Based on Carboxymethyl Chitosan/Polyvinyl Alcohol to Extend the Shelf Life of Sweet Orange "Valencia" DOI: 10.1007/s10924-023-02854-6 -
Acetate 신뢰도 1.0
“The 3 cm-1 sharp peak at 1112 was assigned to the stretching vibration of the -C-O-Cgroup as shown in (Fig.”
A novel intra-tumoral drug delivery carrier for treatment of oral squamous cell carcinoma DOI: 10.1038/s41598-023-38230-6
이 밴드가 있는 스펙트럼이 있나요?
FTIR 스펙트럼을 업로드하면 몇 초 안에 전체 해석 보고서(문헌 인용이 포함된 피크 할당, 라이브러리 매칭, 신뢰도 평가 증거 체인)를 받을 수 있습니다.