What absorbs at 3074 cm⁻¹ in an FTIR spectrum?
A band near 3074 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 5 cited sources
Jibu la haraka
A band near 3074 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 |
|---|---|---|---|
| Alkyl C-H | 2 | 2 | 1.0 |
| Aromatic ring | 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 |
| Amide | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 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 |
|---|---|---|---|
| collagen | 3074, 1408, 1660 | Methacrylate, Alkyl C-H, Methoxy (OCH3) | 1 |
| PLA | 3074, 1650, 1073 | Alkyl C-H, Methacrylate, Methoxy (OCH3) | 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 3074 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
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Hydroxyl (O-H) uaminifu 1.0
“A peak at cm-1 3074 belonged to weak O-H stretching [30] and cm-1 a broad peak at 3322 was attributed to O-H”
Influence of Ho3+ substitution on structural and magnetic properties of Mg–Mn ferrites DOI: 10.1007/s10854-021-05547-9 -
Alkyl C-H uaminifu 1.0
“ized by Raman spectroscopy studies should be considered as 2 3 cm-1 suggesting the presence of water), 3074 (C-H stretching), 3 distinct survival strategy against osmotic stressful conditions b cm-1 cm-1 2955 (asymmetric stretching vibratio”
Cojoc 等 - 2019 - Carotenoids produced by halophilic bacterial strai DOI: 10.1093/femsle/fnz243 -
Amide uaminifu 1.0
“LLM confirmed rule peak-group candidate”
Dolete 等 - 2019 - Development and sequential analysis of a collagen- DOI: 10.25083/rbl/24.1/108.117 -
Acetate uaminifu 1.0
“Neat unsaturated 1276.64cm-1 hasapeakat3074.41cm-1 in lignin.The peak at can be assigned to C-O-C resultingfromthe=C-H polyester”
Sahari 和 Maleque - 2016 - Mechanical Properties of Oil Palm Shell Composites DOI: 10.1155/2016/7457506 -
Aromatic ring uaminifu 1.0
“The characteristic bands of alkenes and aromatic compounds are 3074 cm-1, 1630 cm-1, 910 cm-1, cm-1, cm-1, cm-1, The characteristic bands of alkenes and aromatic compounds are 3074 1630 910 3033 cm-1, 1496 cm-1, and 698 cm-1.”
Degradation Classification of 3D Printing Thermoplastics Using Fourier Transform Infrared Spectroscopy and Artificial Neural Networks DOI: 10.3390/app8081224
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.