What absorbs at 720 cm⁻¹ in an FTIR spectrum?
A band near 720 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
가능한 작용기 할당
| 작용기 | 지원 사실 | 인용 출처 | 최고 신뢰도 |
|---|---|---|---|
| Alkyl C-H | 4 | 4 | 1.0 |
| Silicon-oxygen (Si-O) | 3 | 2 | 0.9 |
| Chlorine | 2 | 2 | 1.0 |
| C c single bond | 1 | 1 | 0.9 |
| C-S single bond | 1 | 1 | 0.9 |
| Metal oxygen | 1 | 1 | 0.9 |
순위는 단일 권위 규칙이 아닌 축적된 문헌 증거를 반영합니다. 항상 샘플 상황에 대해 확인하세요.
이 할당의 배경이 되는 문헌
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Chlorine 신뢰도 1.0
“The peaks appearing near 720 corresponds to the C-Cl stretching mode and at a cm-1assigned 1048 to (C-O-C) stretching mode of PVC [44].”
Arya 等 - 2018 - Effect of variation of different nanofillers on st DOI: 10.1007/s11581-016-1784) -
Chlorine 신뢰도 1.0
“The peaks appearing near 720 corresponds to the C-Cl cm-1 stretching mode and at 1060 assigned to (C-C) stretching mode of PVC.”
Arya 和 Sharma - 2018 - Structural, microstructural and electrochemical pr DOI: 10.1007/s11581-017-2364-7). -
Alkyl C-H 신뢰도 1.0
“Explicit assignment: 'Peaks at 720 ... due to the long chain of C-H (bending vibration)'”
Dey 等 - 2020 - Biodegradation of Unpretreated Low-Density Polyeth DOI: 10.3389/fmicb.2020.603210 -
Alkyl C-H 신뢰도 1.0
“Assigned to CH2 in text.”
Lee 等 - 2023 - Effect of Repeated Contact to Food Simulants on th DOI: 10.3390/polym15010009 -
Silicon-oxygen (Si-O) 신뢰도 0.9
“Stretching vibrations of Si-O at 720 cm-1.”
Basavaraj 等 - 2017 - Mimosa pudica mediated praseodymium substituted ca DOI: 10.1016/j.jallcom.2016.08.064 -
Metal oxygen 신뢰도 0.9
“Text states 'stretching and bending vibrations of Cd-O at 720, 625 and 460 cm-1'”
Bhukkal 和 Ahlawat - 2020 - Cu2+-Mn2+-Co-doped CdO nanocrystallites comprehen DOI: 10.1007/s11164-020-04202-y -
신뢰도 0.9
“Explicit assignment: 'absorption peaks at 720 and 919cm-1' and 'impurity complexes'.”
Yang 等 - 2005 - Positron annihilation spectroscopy studies of fast DOI: 10.1016/j.jcrysgro.2004.11.302 -
신뢰도 0.9
“Explicit assignment in text.”
Aiad 等 - 2012 - Synthesis and Biocidal Activity of Some Naphthalen DOI: 10.1007/s11743-011-1286-z
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