What absorbs at 1479 cm⁻¹ in an FTIR spectrum?
A band near 1479 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 8 cited sources
Jibu la haraka
A band near 1479 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 |
|---|---|---|---|
| C-O single bond | 5 | 5 | 1.0 |
| Methoxy (OCH3) | 4 | 4 | 1.0 |
| Methacrylate | 4 | 4 | 1.0 |
| Acetate | 4 | 4 | 1.0 |
| Aromatic ring | 4 | 4 | 1.0 |
| Alkyl C-H | 4 | 4 | 1.0 |
| C=n | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Hydrogen bond | 1 | 1 | 1.0 |
| N-O bond | 1 | 1 | 1.0 |
| Amino acid | 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 |
|---|---|---|---|
| silver nanoparticles | 1479, 1636, 1631 | Methacrylate, Acetate, C-O single bond | 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 1479 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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Acetate uaminifu 1.0
“The results obtained reveal that (i) the A-¥ C-O cm-1 reflecting the stretching mode of Q in the semiquinone most pronounced band at 1479 cm-1 anion radical remains invariant to "iron depletion" while it shifts by 4 and 2 to lower frequenci”
Noguchi 等 - 1999 - Comparative FTIR analysis of the microenvironment DOI: 10.1021/bi981759e -
N-O bond uaminifu 1.0
“no band shifts of the band at 1479 cm -~ are seen in the spectra 8 Breton, J., Boullais, C., Burie, J.-R., Nabedryk, E.”
FTIR spectroscopy shows weak symmetric hydrogen bonding of the QB carbonyl groups in Rhodobacter sphaeroides R26 reaction centres DOI: 10.1016/0014-5793(95)00805-J -
Aromatic ring uaminifu 1.0
“indicate silica and The peaks at 1479.2 and 1600 Pb×exp{ exp[ t)+1]} C-- exhibit C bending, consistent with various aromatic ring modes and Rm×e”
Enhancement of biogas production from individually or co-digested green algae Cheatomorpha linum using ultrasound and ozonation treated biochar DOI: 10.1016/j.ultsonch.2022.106197 -
Alkyl C-H uaminifu 1.0
“The C-H bending Raman peaks of Type 1 SSA tion of 0.2M alanine and 0.1M MgCl standard chemicals 2 1433/1457/1479cm-1, are split into which correspond to and collected on Al foil.”
Eom 等 - 2016 - Single-particle investigation of summertime and wi DOI: 10.5194/acp-16-13823-2016 -
Amide uaminifu 1.0
“cm(cid:5)1 cm(cid:5)1 and 607.7 stretching, and absorption bands between 1479.1 TheFTIRspectrumwasusedtoidentifythefunctionalgroupofactive cm(cid:5)1 are characteristic of the amide II region and bands from 536.9 to componentsbasedonthepeak”
Phytochemical screening, polyphenols, flavonoids and tannin content, antioxidant activities and FTIR characterization of Marrubium vulgare L. from 2 different localities of Northeast of Morocco DOI: 10.1016/j.heliyon.2020.e05609 -
Acetate uaminifu 1.0
“Bcm-1 A strong positive peak at 1479 (due to a C-O stretching of Q [8]) is observed in the spectrum recorded after the 1st flash.”
Mezzetti - 2010 - Rapid-scan FTIR difference spectroscopy applied to DOI: 10.3233/SPE-2010-0435 -
Alkyl C-H uaminifu 1.0
“14 3015 285013 ) ) cm-1 12 Meanwhile, bands at 1479 and 1370 related to the C-H .”
Moussa 等 - 2018 - Nature of Active Nickel Sites and Initiation Mecha DOI: 10.1021/acscatal.7b03970 -
C=n uaminifu 1.0
“The appearance of the instinct band at 2865.16 cm-1 (C-H) showed alkanes present, the band at 2031.92 cm-1 confirmed the presence of alkynes, and the band at 1478.96 cm-1 revealed the N-C and N=C groups.”
Naveed 等 - 2022 - Green Synthesis of Silver Nanoparticles Using the DOI: 10.3390/molecules27134226
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.