What absorbs at 2065 cm⁻¹ in an FTIR spectrum?
A band near 2065 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
Kiire vastus
A band near 2065 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.
Võimalikud funktsionaalrühmade määramised
| Funktsionaalrühm | Toetavad faktid | Tsiteeritud allikad | Kõrgeim usaldusväärsus |
|---|---|---|---|
| Adsorbed carbon monoxide | 2 | 2 | 1,0 |
| C#c | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 0,8 |
Reiting kajastab kogunenud kirjanduslikke tõendeid, mitte ühte autoriteetset reeglit. Kinnitage alati oma proovi kontekstis.
Võimalikud materjalid
| Materjal | Toetavad piigid | Kattuvad rühmad | Tsiteeritud allikad |
|---|---|---|---|
| silver nanoparticles | 2065, 1636, 1631 | Alkyl C-H | 1 |
Materjale kuvatakse ainult siis, kui sama kirjanduse kogum toetab seda riba ja vähemalt ühte täiendavat iseloomulikku piiki.
Spektri loogika
This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 2065 cm⁻¹ is usually not enough for material identification by itself.
Reaalse maailma kasutus
Seda tüüpi päring on tavaline polümeeri tuvastamisel, tundmatu plasti sõeluuringul, kvaliteedikontrolli probleemide lahendamisel, ringlussevõetud materjali kontrollimisel ja kirjandusel põhineval piirkinnituste ülevaatel.
Levinud vead
- Ühe isoleeritud riba käsitlemine materjali tõendina ilma vähemalt ühte või kahte toetavat piiki kontrollimata.
- Ülekattumise ignoreerimine: mitu funktsionaalrühma võivad anda panuse sama lainearvu lähedal.
- Valideerimise vahelejätmine, kui lisandid, segud, oksüdatsioon või saastumine võivad spektrit moonutada.
Kontrollimise nõuanne
Kui ebakindlus püsib, kinnitage hüpotees DSC, GC-MS või TGA abil, eriti segude, lagunenud proovide ja täidetud polümeeride puhul.
Nende määramiste taga olev kirjandus
-
Aromatic ring usaldusväärsus 1,0
“The peak of 2065.46 represents the presence groups in different absorbance regions between of aromatic compounds.”
Dev 等 - 2018 - GREEN SYNTHESIS OF SILVER NANOPARTICLES USING LEAF DOI: 10.13040/IJPSR.0975-8232.9(9).3897-02 -
C#c usaldusväärsus 1,0
“The data revealed the peaks of metabolites given the impressions at 1645 and 2065 The peak at cm-1 cm-1 2065 shows alkyne stretching vibrations.”
Development of Selenium Nanoparticle Based Agriculture Sensor for Heavy Metal Toxicity Detection DOI: 10.3390/agriculture10120610 -
Adsorbed carbon monoxide usaldusväärsus 1,0
“Spectra showed in figure 4.a present a shift of the absorbed cm-1 carbonyls species on the platinum surface from the initial band at 2055 to a cm-1 predominant band at 2065 assigned to CO adsorbed on metallic platinum species”
Upgrading the PtCu intermetallic compounds: The role of Pt and Cu in the alloy DOI: 10.1016/j.cattod.2019.11.026 -
Adsorbed carbon monoxide usaldusväärsus 1,0
“The obvious differThe intensities of these bands slightly decreased with the 2 ence is the detection of the bands due to adsorbed CO (2065 increase of the evacuation temperature.”
Rasko 等 - 2004 - Formaldehyde formation in the interaction of HCOOH DOI: 10.1016/j.jcat.2004.03.025 -
usaldusväärsus 1,0
“2 °C different: show higher activity in ethanol reforming and higher hydrogen at 300 (blue spectrum in Figure 2) is pronounced cm-1, cm-1 selectivity.25 bands at 2065 1950 and at lower wavenumbers due to linear and bridge-bonded CO on exten”
Spezzati 等 - 2017 - Atomically Dispersed Pd-O Species on Ceo(2)(111) a DOI: 10.1021/acscatal.7b02001 -
Alkyl C-H usaldusväärsus 0,8
“Bands at 2065 cm-1 ascribed to stretching vibrations of alkanes (C-H).”
Ismail 等 - 2020 - Evaluation of a naturally derived tannin extracts DOI: 10.1007/s13202-019-0717-7
Kas teil on selle ribaga spekter?
Laadige üles oma FTIR spekter ja saage sekunditega täielik tõlgendusaruanne — piikide määramised kirjandusviidetega, raamatukogu vasted ja usaldusväärsusega hinnatud tõendite ahel.