What absorbs at 3054 cm⁻¹ in an FTIR spectrum?
A band near 3054 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 3054 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 |
|---|---|---|---|
| Aromatic ring | 5 | 5 | 1.0 |
| Alkyl C-H | 5 | 5 | 1.0 |
| Alkene (C=C) | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Styrene | 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 |
|---|---|---|---|
| polyethylene | 3054, 1737, 1720 | Alkyl C-H, Aromatic ring | 2 |
| HDPE | 3054, 1369, 1216 | Alkyl C-H, Aromatic ring | 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 3054 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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Aromatic ring uaminifu 1.0
“LLM confirmed rule peak-group candidate”
Synthesis and characterization of co-polymers of styrene with acrylonitrile initiated by <i>p</i>-acetylbenzylidene triphenylarsonium ylide DOI: 10.1163/1568555053084249 -
Alkyl C-H uaminifu 1.0
“LLM confirmed rule peak-group candidate”
Synthesis and characterization of copolymer of styrene with methacrylic acid initiated by triphenylbismuthonium 1,2,3,4- tetraphenylcyclopentadienylide DOI: 10.1002/app.22316 -
Aromatic ring uaminifu 1.0
“LLM confirmed rule peak-group candidate”
Systematic optimization of poly(vinyl chloride) surface modification with an aromatic thiol DOI: 10.1016/j.eurpolymj.2017.09.030 -
uaminifu 1.0
“N-H broad bend at 3054 and 2983 cm-1 The peak at 1058 was shifted to lower wave-numbers As revealed in the XRD pattern of theophylline in Figure”
Development of Theophylline Microbeads Using PregelatinizedBreadfruit Starch (Artocarpus altilis) as a Novel Co-polymer for Controlled Release DOI: 10.15171/apb.2019.012 -
Alkene (C=C) uaminifu 1.0
“1,9-Bis[4-(phenyliminomethylidene)-phenoxy]-nonane cm-1): ν, FTIR (KBr, 3054 (=C-H stretch of the aromatic rings), 2932-2851 (C-H”
Mesomorphic Behavior of Symmetric Azomethine Dimers Containing Different Chromophore Groups DOI: 10.3390/molecules26082183 -
Aromatic ring uaminifu 1.0
“cm-1 bending vibrations of the benzene rings in polyester appear at 3054, 793, 848 and 721 cm-1.”
Characterization polyethylene terephthalate nanocomposites mixing with nano-silica and titanium oxide DOI: 10.1051/matecconf/201713708005 -
Alkyl C-H uaminifu 1.0
“CO (Axial symmetrical deformation) 2 2969 C-H (Symmetrical stretching) 3054 CH aromatic rings (Symmetric stretching)”
da Silva 和 Wiebeck - 2022 - ATR-FTIR Spectroscopy Combined with Chemometric Me DOI: 10.21203/rs.3.rs-905784/v1
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.