What absorbs at 1399 cm⁻¹ in an FTIR spectrum?
A band near 1399 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
Possíveis atribuições de grupos funcionais
| Grupo funcional | Fatos de suporte | Fontes citadas | Maior confiança |
|---|---|---|---|
| C c single bond | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
| Nitrile | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Carbonate | 1 | 1 | 1,0 |
A classificação reflete a evidência acumulada da literatura, não uma única regra autoritária. Sempre confirme com o contexto da sua amostra.
Literatura por trás destas atribuições
-
Carbonate confiança 1,0
“Several peaks with values at 1457 cm-1, 1399 cm-1, or 1340 cm-1 can also be seen, associated with the presence of CO3.”
Remineralization Potential of Three Restorative Glass Ionomer Cements: An In Vitro Study DOI: 10.3390/jcm12062434 -
Carboxyl (COOH) confiança 1,0
“The strong characteristic absorption peak at 1550 was attributed to to the vibration of COOgroup of the galacturonic acid and those at 1399 cm-1 could correspond to COOcm-1 the vibration of group of the galacturonic acid and those at 1399 c”
Lukova 等 - 2020 - Prebiotic Activity of Polyand Oligosaccharides O DOI: 10.3390/app10082648 -
C-O single bond confiança 1,0
“The GO spectrum presents a broad band at 3192 cm-1, corresponding to the O-H stretching vibration, and peaks associated to the C = O (1734 cm-1), C-OH (1399 cm-1), C-O-C (1207 cm-1) and C-O (977 cm-1) vibrations.”
Joining Caffeic Acid and Hydrothermal Treatment to Produce Environmentally Benign Highly Reduced Graphene Oxide DOI: 10.3390/nano11030732 -
Nitrile confiança 1,0
“The colored solution which could be due to the nitrile triple bond 1633.21cm-1 (DM) has been precisely prepared by mixing the three dyes C≡N, a band at which originates from the 1398.56cm-1 with same proportion in ultrapure water.”
Fegousse 等 - 2019 - Pineapple Bark Performance in Dyes Adsorption Opt DOI: 10.1155/2019/3017163 -
Alkyl C-H confiança 1,0
“commonlyusedmethodforparticlessizedistributionincolloidal The peak at 1399 refers to C-H stretching vibrations of the solution.”
Gupta 等 - 2018 - Effective Antimicrobial Activity o Green ZnO Nano DOI: 10.3389/fmicb.2018.02030 -
C c single bond confiança 1,0
“Further, the peaks at 1541 and 1399 cm-1 C-C were due to stretching and ring vibrations.”
Naik 等 - 2022 - Nanobacterial Cellulose Production and Its Antibac DOI: 10.1021/acsomega.2c04336
Tem um espectro com esta banda?
Carregue seu espectro FTIR e obtenha um relatório de interpretação completo — atribuições de picos com citações da literatura, correspondências de biblioteca e uma cadeia de evidências com nível de confiança — em segundos.
Interpretar meu espectro