What absorbs at 863 cm⁻¹ in an FTIR spectrum?
A band near 863 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 863 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 |
|---|---|---|---|
| Methoxy (OCH3) | 2 | 2 | 1.0 |
| Methacrylate | 2 | 2 | 1.0 |
| C-O single bond | 2 | 2 | 1.0 |
| Acetate | 2 | 2 | 1.0 |
| Aromatic ring | 2 | 2 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Oxygen heterocycle | 1 | 1 | 1.0 |
| Metal oxygen | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Chlorine | 1 | 1 | 1.0 |
| S eq o | 1 | 1 | 1.0 |
| Sulfonyl | 1 | 1 | 1.0 |
| N h | 1 | 1 | 0.8 |
순위는 단일 권위 규칙이 아닌 축적된 문헌 증거를 반영합니다. 항상 샘플 상황에 대해 확인하세요.
가능한 재료
| 재료 | 지원 피크 | 겹치는 그룹 | 인용 출처 |
|---|---|---|---|
| silica | 863, 1100, 1080 | Methacrylate, Acetate | 1 |
| Epoxy Resin | 863, 905, 1100 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
| zinc oxide | 863, 1627, 1638 | Methacrylate, Acetate, C-O single bond | 1 |
| zinc oxide nanoparticles | 863, 1744, 1627 | Acetate, Methacrylate, Methoxy (OCH3) | 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 863 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
-
Sulfonyl 신뢰도 1.0
“Intensity varies with sample crystallinity 1218 C=O=C Stretching 1020, 1080, 1170 O=S=O Stretching 863, 841, 700”
Vibrational spectroscopic study of pure and silica-doped sulfonated poly(ether ether ketone) membranes DOI: 10.1016/j.saa.2014.12.004 -
신뢰도 1.0
“In 2 cm-1 pure PVC sample A, the C-H stretching peak at 2972 cm-1 and C-Cl stretching observed at 863 [33].”
Dynamic mechanical and optical characterization of PVC/fGO polymer nanocomposites DOI: 10.1007/s00339-018-2026-2 -
Amide 신뢰도 1.0
“glucosamine C high temperature, concentration of alkali, reaction time, 2 cm-1 was ascribed to edulis chitosan spectrum, a peak at 863 previous treatment of the chitin, particle size, chitin cm-1 C-N were stretching, absorption peaks at 101”
Varma 和 Vasudevan - 2020 - Extraction, Characterization, and Antimicrobial Ac DOI: 10.1021/acsomega.0c01903 -
Acetate 신뢰도 1.0
“During the curing process of epoxy resin, the FTIR band intensity of C-O-C and C-O cm-1 of the anhydrous epoxoid ring at 917 and 863 decreased, and the band intensity cm-1 at 1672 increased [35,39,54], indicating complete resin polymerizati”
Abu Zeid 和 Edrees - 2022 - Hydration Characterization of Two Generations of M DOI: 10.3390/app12073517 -
신뢰도 1.0
“ESI-MS molecular-ion peak 863.21, corresponding to H+ + 1H [Zn(L7) ].”
Gusev 等 - 2020 - Synthesis, Photoluminescence and Electrical Study DOI: 10.3390/ma13245698 -
신뢰도 1.0
“A characteristic cm-1 stored in an airtight glass vial, labeled as ZnO-NPs, and was band observed at 863 corresponds to the Zn-O stretching stored at room temperature for physicochemical, morphological bond (Ta¸s et al., 2000;”
Biogenic Synthesis and Characterization of Antimicrobial and Antiparasitic Zinc Oxide (ZnO) Nanoparticles Using Aqueous Extracts of the Himalayan Columbine (Aquilegia pubiflora) DOI: 10.3389/fmats.2020.00249 -
Aromatic ring 신뢰도 1.0
“In the fingerprint region of FA, the ≤ ± 0.05) among the samples (63.98 0.34 %), but as the concentration cm(cid:0) cm(cid:0) 1 1 characteristics peaks at 863 and 804 correspond to the two ± of RSN increased to 20 % EE declined to 52.23 0.7”
Ferulic acid loaded pickering emulsions stabilized by resistant starch nanoparticles using ultrasonication: Characterization, in vitro release and nutraceutical potential DOI: 10.1016/j.ultsonch.2022.105967 -
Oxygen heterocycle 신뢰도 1.0
“LLM confirmed rule peak-group candidate”
Water Immersion Aging of Epoxy Resin and Fique Fabric Composites: Dynamic–Mechanical and Morphological Analysis DOI: 10.3390/polym14173650
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.