What absorbs at 2007 cm⁻¹ in an FTIR spectrum?
A band near 2007 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
Jibu la haraka
A band near 2007 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.
Ugawaji unaowezekana wa vikundi vya kazi
| Kikundi cha kazi | Ukweli unaounga mkono | Vyanzo vilivyotajwa | Uaminifu wa juu |
|---|---|---|---|
| Amide | 3 | 3 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Nitrate | 1 | 1 | 1.0 |
Cheo kinaonyesha ushahidi wa fasihi uliokusanywa, si sheria moja yenye mamlaka. Thibitisha kila mara dhidi ya mazingira ya sampuli yako.
Nyenzo zinazowezekana
| Nyenzo | Vilele vya usaidizi | Vikundi vinavyoingiliana | Vyanzo vilivyotajwa |
|---|---|---|---|
| AgNPs | 2007, 1232, 1048 | N h, Hydroxyl (O-H), Amide | 1 |
| AuNPs | 2007, 1646, 1721 | Hydroxyl (O-H), Amide | 1 |
| HDPE | 2007, 1369, 1216 | Hydroxyl (O-H) | 1 |
Nyenzo zinaonyeshwa tu wakati mkusanyiko sawa wa fasihi unaunga mkono bendi hii na angalau kilele kimoja cha ziada cha sifa.
Mantiki ya wigo
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 2007 cm⁻¹ is usually not enough for material identification by itself.
Matumizi ya ulimwengu halisi
Aina hii ya swala ni ya kawaida katika utambuzi wa polima, uchunguzi wa plastiki isiyojulikana, utatuzi wa shida za QC, uthibitishaji wa nyenzo zilizosindikwa, na ukaguzi wa ugawaji wa kilele unaoungwa mkono na fasihi.
Makosa ya kawaida
- Kuchukua bendi moja iliyotengwa kama uthibitisho wa nyenzo bila kuangalia angalau kilele kimoja au viwili vya usaidizi.
- Kupuuza mwingiliano: vikundi vingi vya utendaji vinaweza kuchangia karibu na nambari ya wimbi sawa.
- Kuruka uthibitishaji wakati viongezi, mchanganyiko, uoksidishaji, au uchafuzi unaweza kupotosha wigo.
Ushauri wa uthibitishaji.
Wakati utata unabaki, thibitisha nadharia kwa kutumia DSC, GC-MS, au TGA, hasa kwa mchanganyiko, sampuli zilizoharibika, na polima zilizojazwa.
Fasihi nyuma ya ugawaji huu
-
Nitrate uaminifu 1.0
“The main absorption peaks cm-1 of CaSO around 660 and 600 provided no 4 interferences to nitrate bands (Verma and Deb 2007).”
Choe 等 - 2010 - An Alternate Method for Fourier Transform Infrared DOI: 10.1007/s11270-009-0091-z -
Amide uaminifu 1.0
“protein content predicted based on peak height at 1652 ture is less straightforward than for amide I vibration (Barth 2007), the amide I region was deconvoluted (Byler and Sui Protein content predicted from FTIR was highly correlated (R2=0.”
Qualitative and Quantitative Analysis of Sorghum Grain Composition Including Protein and Tannins Using ATR-FTIR Spectroscopy DOI: 10.1007/s12161-020-01874-5 -
Acetate uaminifu 1.0
“r2, (RPD) for cross-validation and root mean square error of predicAll the spectrum analyses are characterised by bands between tion (RMSEP) and RPD for test-set validation (Workman & Weyer, cm(cid:1)1, 1500 and 900 which correspond to C-C”
FTIR⠍ATR spectroscopy applied to quality control of grape-derived spirits DOI: 10.1016/j.foodchem.2016.02.128 -
Amide uaminifu 1.0
“3 (2020) 1175-1185 3.2 SAMs process on each silicon-based bonds, while amide II signals are between 1550 - cm-1 1600 derived from in-plane N-H bending and material substrates et al., from C-N stretching vibration (Kong 2007), Structural pro”
Gomez-Montano 等 - 2020 - Detection of Salmonella enterica on silicon substr DOI: 10.24275/rmiq/Bio993 -
uaminifu 1.0
“(N-H).24 vibrations of amino 2007, 79, 3810.”
Nagajyothi 等 - 2012 - Green Synthesis of Silver and Gold Nanoparticles U DOI: 10.5012/bkcs.2012.33.8.2609 -
Hydroxyl (O-H) uaminifu 1.0
“Also, another new band between 3100 This work was supported by the 2007 cm-1 is attributed to a hydroxyl bond and/or hydroand 3500 Yeungnam University Research Grant.”
Park 等 - 2013 - Analysis of Degradation Behaviors of Geomembrane b DOI: 10.7317/pk.2013.37.1.5 -
Amide uaminifu 1.0
“Smidt and stretch: amide I band) cmMeissl, 2007;”
Comprehensive characterization of industrial wastewaters using EEM fluorescence, FT-IR and 1H NMR techniques DOI: 10.1016/j.scitotenv.2021.150417
Una wigo wenye bendi hii?
Pakia wigo wako wa FTIR na upate ripoti kamili ya tafsiri — ugawaji wa vilele na marejeleo ya fasihi, ulinganishaji wa maktaba, na mlolongo wa ushahidi wenye kiwango cha uaminifu — kwa sekunde.