What absorbs at 1217 cm⁻¹ in an FTIR spectrum?
A band near 1217 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
Stutt svar
A band near 1217 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.
Mögulegar úthlutun virkra hópa
| Virkur hópur | Stuðningsstaðreyndir | Tilvitnuð heimildir | Mesta öryggi |
|---|---|---|---|
| Secondary amine | 3 | 3 | 1,0 |
| C n single bond | 3 | 3 | 1,0 |
| Amide | 3 | 3 | 1,0 |
| Alkene (C=C) | 2 | 2 | 1,0 |
| Hydroxyl (O-H) | 2 | 2 | 1,0 |
| Alkyl C-H | 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 (Si) | 1 | 1 | 1,0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| N h | 1 | 1 | 1,0 |
| Fluorine (C-F) | 1 | 1 | 1,0 |
| Nitrate | 1 | 1 | 1,0 |
Röðun endurspeglar uppsöfnuð ritrýnisgögn, ekki eina valdboðsreglu. Staðfestu alltaf í samhengi við sýnið þitt.
Möguleg efni
| Efni | Stuðningstindar | Skarast hópar | Tilvitnuð heimildir |
|---|---|---|---|
| epoxy | 1217, 1660, 1735 | Amide | 1 |
| silver nanoparticles | 1217, 1636, 1631 | Amide | 1 |
Efni birtast aðeins þegar sama bókmenntasafn styður þessa band og að minnsta kosti einn viðbótar einkennandi hámark.
Rófrök
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 1217 cm⁻¹ is usually not enough for material identification by itself.
Raunveruleg notkun
Þessi tegund fyrirspurna er algeng við auðkenningu fjölliða, skimun óþekktra plasttegunda, bilanaleit í gæðaeftirliti, staðfestingu endurunnins efnis og bókmenntabakkaða endurskoðun á hápunktum.
Algeng mistök
- Meðhöndla eina einangraða öldulengd sem sönnun á efni án þess að athuga að minnsta kosti einn eða tvo stuðningstoppa.
- Hunsa skörun: mörg virkir hópar geta lagt sitt af mörkum nálægt sömu bylgjutölunni.
- Að sleppa staðfestingu þegar aukefni, blöndur, oxun eða mengun geta brenglað litrófið.
Staðfestingarráðgjöf
Þegar tvíræðni er eftir, staðfestu tilgátuna með DSC, GC-MS eða TGA, sérstaklega fyrir blöndur, niðurbrotin sýni og fylltar fjölliður.
Ritlist á bak við þessar úthlutanir
-
Hydroxyl (O-H) öryggi 1,0
“C─C 1510-1440 C stretch of aromatic ring 1496 C─O phenolic stretch 1217 ~1200 C─H”
Influence of amine‐terminated additives on thermal and mechanical properties of diglycidyl ether of bisphenol A (DGEBA) cured epoxy DOI: 10.1002/app.48404 -
Alkene (C=C) öryggi 1,0
“8 Textile fabrics dyed with ethanol and acetone extracts of the red pigment and colour hues obtained after applying different mordant to the textile materials cm1 1 identifies different substances within a test sample and peaks around 1217”
Resourcefulness of propylprodigiosin isolated from Brevundimonas olei strain RUN-D1 DOI: 10.1186/s13568-023-01579-y -
Nitrate öryggi 1,0
“In fact, they are still evident among the nitrate peaks cm-1 The three peaks located at 1217, 1388, and 1471 can only 4+) that form, and it is the s(NH ions bound to Brønsted acid (cid:228)”
Pena 等 - 2004 - Identification of surface species on titania-suppo DOI: 10.1021/jp0313122 -
Amide öryggi 1,0
“peak values at 1496.93 The stretching vibration of C-N group of RR2 appears at 1217 cm-1 N The peaks at 1186.54, 1129.39, 1048.24 and 668.21 showed S=O stretching vibrations.”
Sakthisharmila 等 - 2017 - A characteristic study on generation and interacti DOI: 10.1016/j.molliq.2017.01.106 -
öryggi 1,0
“For male smokers with C-F stretch, 1083.1 corresponding to organic silicone or cm-1 COPD and non-smokers with COPD, the values were observed as silicone/aliphatic flora C-F stretch, 1217.4 corresponding to cm21 58611.3 52.7669.25 and respec”
Dey 等 - 2014 - Role of Glutathione S Transferase Polymorphism in DOI: 10.1371/journal.pone.0096739 -
Hydroxyl (O-H) öryggi 1,0
“In this FTIR spectrum, some peaks located in the 1994 cm-1, 1949 cm-1, 1739 cm-1, 1637 cm-1, 1522 cm-1, 1437 cm-1, 1366 cm-1, 1217 cm-1, 1026 cm-1, 898 cm1994 cm-1, 1949 cm-1, 1739 cm-1, 1637 cm-1, 1522 cm-1, 1437 cm-1, 1366 cm-1, 1217 cm-1”
Mondal 等 - 2020 - Anti-Bacterial and Anti-Candidal Activity of Silve DOI: 10.3390/biom10060944 -
Amide öryggi 1,0
“the pure drug showed the characteristic peaks at 1650.76 due to C=O stretching, at 3364.90 due to O-H stretching, 3252.43 due to N-H stretch, 1435.82 due to C-F stretching, 1316.56 due to C-O stretching, 1217.08 due to C-N stretching, and a”
Dissolution Improvement of Atorvastatin Calcium using Modified Locust Bean Gum by the Solid Dispersion Technique DOI: 10.3797/scipharm.1301-23 -
öryggi 1,0
“with the same electrode heated up to Pristine silicon electrode dominantroleofP-FcontainingspeciesinSEIofSi-basedelectrodes gives bands corresponding to O-Si-O and Si-O-Si vibrations (1217, reported.36,37 is 1109,883,496cm-1)andtoNaCMC(1598”
Profatilova 等 - 2012 - Thermally Induced Reactions between Lithiated Nano DOI: 10.1149/2.095205jes
Ertu með róf með þessu bandi?
Hladdu upp FTIR-rófinu þínu og fáðu fulla túlkunarskýrslu — toppúthlutun með tilvitnunum í ritrýni, bókasamsvörun og sönnunarkeðju með öryggismati — á nokkrum sekúndum.