What absorbs at 1394 cm⁻¹ in an FTIR spectrum?
A band near 1394 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 6 cited sources
Atribuiri posibile ale grupelor funcționale
| Grup funcțional | Fapte suport | Surse citate | Încredere maximă |
|---|---|---|---|
| Carboxyl (COOH) | 2 | 2 | 1,0 |
| Carbonate | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| S eq o | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
Clasamentul reflectă dovezile acumulate din literatură, nu o singură regulă autoritară. Confirmați întotdeauna în contextul mostrei dvs.
Literatura din spatele acestor atribuiri
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Alkyl C-H încredere 1,0
“* CH bending 1453.61±0.43 1452.14±0.14 0.90±0.03 0.96±0.02 2 COO- *** * symmetric stretch 1394.20±0.36 1397.09±0.25 0.98±0.02 0.92±0.05 * 2PO asymmetric stretching 1239.61±0.12 1239.48±0.19 0.12 1.01±0.02 0.91±0.02”
Wang 等 - 2012 - Differentiation in MALDI-TOF MS and FTIR spectra b DOI: 10.1186/1471-2180-12-182 -
Carboxyl (COOH) încredere 1,0
“based on the Noda's rule [24] led to the sequence of the spectral (cm(cid:2)1) Position Assignment cm(cid:2)1, (''?'' 1302?1264 1302? change means prior to): C@O (m 1706 Carboxylic acid stretch carboxy) C@O 1394cm(cid:2)1.”
Adsorption of Enrofloxacin on montmorillonite: Two-dimensional correlation ATR/FTIR spectroscopy study DOI: 10.1016/j.jcis.2012.09.039 -
Carboxyl (COOH) încredere 1,0
“The intense band at 775 cm-1 cm-1 is due to the symmetrical adsorption band at 1394.25 region, several bands are observed, which can be assigned elongation of the carboxylate group.”
Adala 等 - 2022 - Two Coordination Polymers Synthesized from Various DOI: 10.1021/acsomega.1c06049 -
S eq o încredere 1,0
“8 SD = (A SO2/A C=C) x (17/ 0.132) (2) cm-1 is the integral of the peak at 1394 related to the asymmetric SO stretching where A SO2 2”
Gomes 等 - 2007 - Characterization of partially sulfonated polyoxadi DOI: 10.1016/j.memsci.2007.02.046 -
C c single bond încredere 1,0
“The cm-1, C=C stretching vibrations at 1560 and 1480 C-N and cm-1 C-C vibrations at 1394 and C-H out of plane twisted vibration of PPy of polymer chain [26, 27].”
Structural, Electrical and Dielectric Properties of Dodecylbenzene Sulphonic Acid Doped Polypyrrole/Nano-Y2O3 Composites DOI: 10.1007/s10904-019-01287-w -
Carbonate încredere 1,0
“The phenomenon of microbial ureolysis has been examined in a calcium-rich environment and many studies have could possibly be attributed to a cerium carboxylate compound focused on microbiologically-induced carbonate precipitation (Forsythe”
Kang 等 - 2023 - Fungal biorecovery of cerium as oxalate and carbon DOI: 10.1016/j.funbio.2022.07.006
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