What absorbs at 982 cm⁻¹ in an FTIR spectrum?
A band near 982 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 982 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 | 3 | 2 | 1.0 |
| Alkyl C-H | 2 | 2 | 1.0 |
| Phosphate (PO4) | 2 | 2 | 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 |
| N-O bond | 1 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 0.5 |
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 |
|---|---|---|---|
| geopolymer | 982, 1453, 1000 | Metal oxygen, Alkyl C-H | 1 |
| Silver Nanoparticles | 982, 1636, 1631 | Alkyl C-H, Methoxy (OCH3) | 1 |
| TiO2 | 982, 1700, 1093 | Metal oxygen, Alkyl C-H, 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 982 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
-
N-O bond uaminifu 1.0
“level understanding of the thermomechanical properties of a cm-1, No corresponding shift was observed for the peak at 982 broader range of polymer materials in nano-thin regime.”
Kollath 和 Karan - 2016 - New molecular scale insights into the alpha-transi DOI: 10.1039/C6CP04457C. -
Phosphate (PO4) uaminifu 1.0
“XRD patterns show the presence of peaks at = 982, and 892 ascribed to (P-O), (W-O) and”
Visible light absorption of TiO2 materials impregnated with tungstophosphoric acid ethanol–aqueous solution at different pH values. Evidence about the formation of a surface complex between Keggin anion and TiO2 surfaces DOI: 10.1016/j.materresbull.2013.09.043 -
uaminifu 1.0
“cm-1 cm-1, 1605 and 3383-3601 being assigned to the vibrational modes of the deformation IR bands of PTA situated at 523 cm-1, 594 cm-1, 797 cm-1, 891 cm-1, 982 cm-1, 1080 cm-1, 1605 (O corresponds to corner oxygen atoms), W-O e-W stretchin”
The Photoluminescence and Vibrational Properties of Black Phosphorous Sheets Chemically/Electrochemically Functionalized in the Presence of Diphenylamine DOI: 10.3390/polym14214479 -
Alkyl C-H uaminifu 1.0
“aromatic group in strong (C-H bend stretch, aliphatic amines group in medium (C-N stretch, 1055.96, 1038.12cm-1), alkenes group in strong (C-H rock, 981.81, 726.78cm-1), and alkyl halides group in medium (C-Br 567.83cm-1).”
Baranitharan 等 - 2022 - Fabrication of Silver Nanoparticles Using Fimbrist DOI: 10.1155/2022/4083663 -
Alkyl C-H uaminifu 1.0
“(8) cm´1 cm´1 In Figure 4 the peaks obtained in FTIR at 982 and 1345 are assigned to C-H bending cm´1 and C-O-C symmetrical stretching vibrations, while the peak observed at 1585 originates ʋ where c is speed of light, is vibrational freque”
Temperature-Dependent Magnetic Response of Antiferromagnetic Doping in Cobalt Ferrite Nanostructures DOI: 10.3390/nano6040073 -
uaminifu 0.9
“Explicit assignment: 'absorption peak corresponding to Keggin-type HPW emerge 982cm-1, 889cm-1, 801cm-1'”
Zhang 等 - 2021 - Bimetallic MOF-Derived Synthesis of Cobalt-Cerium DOI: 10.1155/2021/2131960 -
Siloxane (Si-O-Si) uaminifu 0.5
“Explicit assignment in text: '798cm-1 was the Si-O-Si' but 982 not explicitly assigned; however context suggests Si-O-Si related.”
Preparation and Characterization of Manganese Slag and Fly Ash-based Geopolymer DOI: 10.1051/matecconf/201713004006
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.