What absorbs at 3740 cm⁻¹ in an FTIR spectrum?
A band near 3740 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 7 cited sources
Mögliche Funktionsgruppenzuweisungen
| Funktionelle Gruppe | Unterstützende Fakten | Zitierte Quellen | Höchstes Vertrauen |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 2 | 1,0 |
| Silanol (Si-OH) | 2 | 2 | 0,9 |
Das Ranking spiegelt die gesammelte Literatur Evidenz wider, nicht eine einzelne maßgebliche Regel. Bestätigen Sie immer anhand Ihres Probenkontexts.
Literatur hinter diesen Zuweisungen
-
Vertrauen 1,0
“Explicit assignment: 'narrow band at 3740 cm-1 which could be ascribed to surface Si-OH groups'”
Gopalakrishnan 等 - 2013 - Unravelling the structure and reactivity of suppor DOI: 10.1016/j.apcatb.2013.02.036 -
Hydroxyl (O-H) Vertrauen 0,95
“Explicitly stated: 'OH-stretching FTIR spectrum consists of two main bands at 3740 cm-1'.”
Della Ventura 等 - 2008 - The P2(1)mC2m phase transition in synthetic am DOI: 10.1127/0935-1221/2008/0020-1836 -
Vertrauen 0,9
“Explicit assignment in text”
Setiabudi 等 - 2012 - IR study of iridium bonded to perturbed silanol gr DOI: 10.1016/j.apcata.2011.12.039 -
Silanol (Si-OH) Vertrauen 0,9
“Band at 3740 cm-1 belongs to isolated silanol.”
Ding 等 - 2022 - The Activity of Ultrafine Cu Clusters Encapsulated DOI: 10.3390/catal12111296 -
Vertrauen 0,9
“assigned to stretching modes of isolated silanols”
Erigoni 等 - 2020 - Highly active hybrid mesoporous silica-supported b DOI: 10.1016/j.cattod.2019.09.041 -
Silanol (Si-OH) Vertrauen 0,9
“Text: 'band at 3740 characteristic of Si-OH'.”
Mihaylov 等 - 2022 - Purification of Hydrogen from CO with CuZSM-5 Ads DOI: 10.3390/molecules27010096 -
Hydroxyl (O-H) Vertrauen 0,7
“Additional band in OH region.”
Souissi 等 - 2022 - Synthesis, Thermal Properties and Electrical Condu DOI: 10.21203/rs.3.rs-1294285/v1
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