What absorbs at 484 cm⁻¹ in an FTIR spectrum?
A band near 484 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 484 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 |
|---|---|---|---|
| Silicon-oxygen (Si-O) | 2 | 2 | 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 |
| Aromatic ring | 1 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| Chitosan | 1 | 1 | 1.0 |
| Amine primary | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Metal oxygen | 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 |
|---|---|---|---|
| Fe3O4 | 484, 2358, 1673 | Methacrylate, Silicon-oxygen (Si-O) | 1 |
| calcite | 484, 2850, 2864 | Methacrylate, Methoxy (OCH3), C-O single bond | 1 |
| quartz | 484, 800, 3053 | Silicon-oxygen (Si-O) | 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 484 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
-
Metal oxygen uaminifu 1.0
“The peak at 621 ascribed to Zr-O vibrations in the nano-tetragonal ZrO [44] 2 cm-1 and the sharp peak observed at 484 is attributed to the”
Influence of pH on the structural, spectral, optical, morphological and photocatalytic properties of ZrO2 nanoparticles synthesized by sol–gel technique DOI: 10.1007/s10854-020-04134-8 -
N h uaminifu 1.0
“bendingCH 1095-4095 2OH.20 The OH stretching frequency emerged The extracted was observed in the range of cm-1 cm-1(14,264 and also the CO (amide) and NH primary amine counts/ at 3452 chitosan showed maximum peaks at 484 cm-1”
Varma 和 Vasudevan - 2020 - Extraction, Characterization, and Antimicrobial Ac DOI: 10.1021/acsomega.0c01903 -
Silicon (Si) uaminifu 1.0
“cm-1 bending and OH stretching, Moreover, the band at 484 is ascribed to Si-O-Si bond binding”
Fabrication of attapulgite/magnetic aminated chitosan composite as efficient and reusable adsorbent for Cr (VI) ions DOI: 10.1038/s41598-021-96145-6 -
Silicon-oxygen (Si-O) uaminifu 1.0
“LLM confirmed rule peak-group candidate”
A Novel Open-System Method for Synthesizing Muscovite from a Biotite-Rich Coal Tailing DOI: 10.3390/min11030269 -
Aromatic ring uaminifu 1.0
“In cm-1 requiredtoconvertthebiomasstosugars(Mankaretal.,2021).Both addition, the band at 1,517 is attributed to the C=C commercial enzymes and microorganisms known to produce stretching of the aromatic ring of lignin (Prajapati and Kango, 1”
Ningthoujam 等 - 2023 - Bioethanol production from alkali-pretreated rice DOI: 10.3389/fbioe.2023.1243856 -
Acetate uaminifu 1.0
“1160 Ethereal C-O-C Stretching vibration of Raman shifts (cm-1) Functional groups/vibration group C-O-C group 484.22 Strong δ(CC) aliphatic chain 850-800 Aromatics and = C-H out of plane 771.47”
Sahoo 等 - 2011 - Qualitative analysis of controlled release ciprofl DOI: 10.4103/2231-4040.85541 -
uaminifu 0.9
“Text identifies band at 482 (close to 484) as Eg mode of Co3O4.”
Cobalt Oxide Catalysts in the Form of Thin Films Prepared by Magnetron Sputtering on Stainless-Steel Meshes: Performance in Ethanol Oxidation DOI: 10.3390/catal9100806
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.