What absorbs at 3079 cm⁻¹ in an FTIR spectrum?
A band near 3079 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 3079 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 |
| Alkene (C=C) | 2 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Sulfur heterocycle | 1 | 1 | 1.0 |
| Protein | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
Cheo kinaonyesha ushahidi wa fasihi uliokusanywa, si sheria moja yenye mamlaka. Thibitisha kila mara dhidi ya mazingira ya sampuli yako.
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 3079 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
-
C c single bond uaminifu 1.0
“The C C bonds appear in the weak bands 2931 and 3079cm-1 ∼1635cm-1 at (C C H) and (C C).”
Font 等 - 2007 - Fourier transform infrared spectroscopy as a suita DOI: 10.1016/j.aca.2007.07.021 -
uaminifu 1.0
“In GaAs grown by liquid encapsulation Czochralski (LEC), the peaks at 3079.2 and 983.3cm(cid:2)1 due to the stretching and wagging mode of N-H were observed at 7K, where its concentration was in 1013cm(cid:2)3 1012 the range from to [15].”
Nishimura 等 - 2007 - Electrical properties of GaAsN film grown by chemi DOI: 10.1016/j.physb.2007.08.183 -
Amide uaminifu 1.0
“The absorption of amide B at 3079 showed acid soluble collagen content of 3.7 ± 0.8% of was related to the asymmetric stretching vibrations of C-H the wet mass weight of the skin and protein content of”
Valorization of Salmo salar Skin Waste for the Synthesis of Angiotensin Converting Enzyme-1 (ACE1) Inhibitory Peptides DOI: 10.1007/s12649-023-02141-4 -
Alkyl C-H uaminifu 1.0
“LLM confirmed rule peak-group candidate”
Rapid Classification and Recognition Method of the Species and Chemotypes of Essential Oils by ATR-FTIR Spectroscopy Coupled with Chemometrics DOI: 10.3390/molecules27175618 -
Sulfur heterocycle uaminifu 1.0
“A peak at 3079 cm-1 in the FTIR spectra of monomer TEBS is due to cm´1 thiophene ring.”
Enzyme-Catalyzed Synthesis of Water-Soluble [1.0]Conjugated Poly[2-(3-thienyl)-Ethoxy-4-Butylsulfonate] DOI: 10.3390/polym8040139
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.