What absorbs at 441 cm⁻¹ in an FTIR spectrum?
A band near 441 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 441 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 |
|---|---|---|---|
| Metal oxygen | 5 | 5 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Phosphate (PO4) | 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 |
| Silicon-oxygen (Si-O) | 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 |
|---|---|---|---|
| ZnO | 441, 1400, 3430 | Metal oxygen | 1 |
| SnO2 | 441, 2800, 1547 | Metal oxygen | 1 |
| zirconia | 441, 1100, 460 | Phosphate (PO4), Metal oxygen | 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 441 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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uaminifu 1.0
“FTIR transmittance spectra of multiphase ZrO2 films ancm-1 at 441 is related to Zr-O vibration mode of m-ZrO nealedatdifferenttemperatures(200◦Cand400◦C).”
Khan 等 - 2013 - Post-annealing effect on the structural and mechan DOI: 10.1088/1674-1056/22/12/127306 -
uaminifu 1.0
“Interaction between the ZnO nanoparticles and PVP were investigated by Fourier Transform Infrared Spectroscopy (FTIR), it shows band at cm-1 441 is attributed to Zn-O bond.”
Pandiyarajan 和 Karthikeyan - 2013 - Structural, thermal and optical properties of PVP DOI: 10.4028/www.scientific.net/AMR.678.253 -
uaminifu 1.0
“Figure 5a, and 1571 The Si-O bending modes appear at 441 cm-1 b shows TEM images of as-synthesized materials at and 506 while the symmetric stretching vibrational cm-1.”
Structural and optical properties of green emitting Y2SiO5:Tb3+ and Gd2SiO5:Tb3+ nanoparticles for modern lighting applications DOI: 10.1007/s12598-020-01585-0 -
Acetate uaminifu 1.0
“Similarly adjacent amino and carboxylic groups seems to be sup440 411 to poly(o-aminobenzoic acid), the presence of two differported by the bipolar character of the absorption cen441 412 ent absorptions for the carboxylic C-O stretching”
Benyoucef 等 - 2005 - Synthesis and in situ MRS characterization of cond DOI: 10.1016/j.eurpolymj.2004.10.047 -
Metal oxygen uaminifu 1.0
“cm-1, The spectra exhibited absorption bands at 441 and 622 and they could be used as a cm-1 detection for the stretching band of Ce-O.”
Development and In Vitro Evaluation of Biocompatible PLA-Based Trilayer Nanofibrous Membranes for the Delivery of Nanoceria: A Novel Approach for Diabetic Wound Healing DOI: 10.3390/polym13213630 -
Metal oxygen uaminifu 1.0
“LLM confirmed rule peak-group candidate”
Facile assembly of flexible quaternary SnO2/SrSnO3/Fe3O4/PVDF nanocomposites with tunable optical, electrical, and magnetic properties for promising magneto-optoelectronic applications DOI: 10.1038/s41598-023-32090-w -
Phosphate (PO4) uaminifu 1.0
“bending P-O bands were measured at 441, and 481”
Ponnusamy 等 - 2022 - Synthesis, Structural, and Mechanical Behavior of DOI: 10.3390/ma15082924 -
Metal oxygen uaminifu 1.0
“The strong 441 ( 4) and 576 ( 2) absorption bands are owning to Fe-O bending and stretching vibration, respectively, being the octahedral cm-1 <FeO 6>.”
Salah 等 - 2021 - Influence of BaO Doping on the Structural, Ac Cond DOI: 10.21203/rs.3.rs-204688/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.