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
Möjliga identifieringar av funktionella grupper
| Funktionell grupp | Stödjande fakta | Citerade källor | Högsta förtroende |
|---|---|---|---|
| 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 |
Rankingen speglar ackumulerade litteraturbevis, inte en enda auktoritativ regel. Bekräfta alltid mot din provkontext.
Litteratur bakom dessa identifieringar
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Chlorine förtroende 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 förtroende 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 förtroende 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 förtroende 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) förtroende 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 förtroende 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 -
förtroende 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 -
förtroende 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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