What absorbs at 459 cm⁻¹ in an FTIR spectrum?
A band near 459 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
त्वरित उत्तर
A band near 459 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.
संभाव्य कार्यात्मक-गट नियुक्त्या
| कार्यात्मक गट | समर्थन करणारी तथ्ये | उद्धृत स्रोत | सर्वोच्च आत्मविश्वास |
|---|---|---|---|
| Metal oxygen | 4 | 4 | 1.0 |
| Alkyl C-H | 3 | 3 | 1.0 |
| Methacrylate | 2 | 2 | 1.0 |
| Acetate | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 2 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ester | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Water (H2O) | 1 | 0 | 0.9 |
रँकिंग संचित साहित्य पुरावा प्रतिबिंबित करते, एकच अधिकृत नियम नाही. नेहमी तुमच्या नमुना संदर्भाविरुद्ध पुष्टी करा.
संभाव्य साहित्य
| सामग्री | सहाय्यक शिखरे | ओव्हरलॅपिंग गट | उद्धृत स्रोत |
|---|---|---|---|
| TiO2 | 459, 1700, 1093 | Metal oxygen, Alkyl C-H, Methacrylate | 2 |
| PDMS | 459, 873, 1080 | Alkyl C-H, Methacrylate | 1 |
| SiO2 | 459, 1739, 699 | Alkyl C-H, Metal oxygen | 1 |
| Fe3O4 | 459, 2358, 1673 | Metal oxygen, Alkyl C-H, Methacrylate | 1 |
| polyaniline | 459, 1565, 1570 | Alkyl C-H, Methacrylate, Acetate | 1 |
| nanocomposites | 459, 1717, 1630 | Alkyl C-H, Methacrylate, Acetate | 1 |
साहित्य केवळ तेव्हाच दर्शविले जातात जेव्हा समान साहित्य पूल या बँडला आणि किमान एक अतिरिक्त वैशिष्ट्यपूर्ण शिखराला समर्थन देतो.
स्पेक्ट्रम तर्क
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 459 cm⁻¹ is usually not enough for material identification by itself.
वास्तविक-जग वापर
या प्रकारचा प्रश्न पॉलिमर ओळख, अज्ञात प्लास्टिक स्क्रीनिंग, क्यूसी ट्रबलशूटिंग, रिसायकल केलेल्या सामग्रीची पडताळणी आणि साहित्य-समर्थित पीक असाइनमेंट पुनरावलोकनात सामान्य आहे.
सामान्य चुका
- कमीत कमी एक किंवा दोन सहाय्यक शिखरे तपासल्याशिवाय एका वेगळ्या बँडला सामग्रीचा पुरावा मानणे.
- ओव्हरलॅप दुर्लक्षित करणे: अनेक कार्यात्मक गट समान तरंगसंख्येजवळ योगदान देऊ शकतात.
- जेव्हा अॅडिटीव्हज, ब्लेंड्स, ऑक्सिडेशन किंवा दूषितता स्पेक्ट्रम विकृत करू शकतात तेव्हा वैधता वगळणे.
पडताळणी सल्ला
जेव्हा अस्पष्टता राहते, तेव्हा DSC, GC-MS किंवा TGA सह गृहीतक प्रमाणित करा, विशेषतः मिश्रण, खराब झालेले नमुने आणि भरलेले पॉलिमर यासाठी.
या नियुक्त्यांमागील साहित्य
-
Metal oxygen आत्मविश्वास 1.0
“from the leaf extract and Ce-O stretching mode at 459 This study shows that CeO NPs exhibit mild to moderate 2 analysis of cFU counting assay”
Maqbool 等 - 2016 - Antimicrobial potential of green synthesized CeO2 DOI: 10.2147/IJN.S113508 -
Hydroxyl (O-H) आत्मविश्वास 1.0
“cm-1 Si-O As seen in Figure 5a, the absorption at 3326 was bond, showing the presence of SiO deposited on the 2 vibration,18 particles.23 O-H attributed to stretching and the absorption surface of TiO The two peaks at 458.6 and 464.3 2”
Wang 等 - 2023 - Surface-Modified TiO2@SiO2 Nanocomposites for Enha DOI: 10.1021/acsomega.3c02679 -
आत्मविश्वास 1.0
“6j, the Ti 2p peaks at 458.84 eV and 464.58 eV correspond to the chemical states Ti 2p1/2 and Ti 2p3/2, respectively.”
Photocatalytic activity of ZrO2/TiO2/Fe3O4 ternary nanocomposite for the degradation of naproxen: characterization and optimization using response surface methodology DOI: 10.1038/s41598-022-14676-y -
Metal oxygen आत्मविश्वास 1.0
“Therefore, PANI@TiO 2 and PANI@TiC nanocomposites showed peaks at 459 eV and 462 eV, which correspond”
Bekhoukh 等 - 2021 - Development, Investigation, and Comparative Study DOI: 10.3390/polym13193344 -
Alkyl C-H आत्मविश्वास 1.0
“While the VIS regression coefficient showed a curve profile with a maximal contribution typical of the 8-hydroxyquinoline-Cd(II) complex [54], the FTIR regression coefficient profile included Kelex 100 characteristic IR vibrational bands at”
Determination of Cadmium (II) in Aqueous Solutions by In Situ MID-FTIR-PLS Analysis Using a Polymer Inclusion Membrane-Based Sensor: First Considerations DOI: 10.3390/molecules25153436 -
Alkyl C-H आत्मविश्वास 1.0
“The broadened and deep peaks at 459 was assigned to angular bending of (Silva cm(cid:3)1 C-H et al.”
Mahapatra 等 - 2023 - Chemically activated carbon preparation from natur DOI: 10.2166/wst.2023.004 -
Silicon (Si) आत्मविश्वास 1.0
“cm-1 (670-560 The third group of bands, with a maximum at 459 is associated with O-Si(Al)-O bending vibrations of six-membered rings in D6R units or possibly with cm-1 vibrations of higher-membered (12-membered) rings.”
Recycling of Waste Solution after Hydrothermal Conversion of Fly Ash on a Semi-Technical Scale for Zeolite Synthesis DOI: 10.3390/ma14061413 -
Alkyl C-H आत्मविश्वास 1.0
“[39,48] Bands at 466 cm-1 and 493 cm-1 are attributed to the convolution) of bands at 472 cm-1 propOx from TPOZ) 1445 1444 1438 1443 1445 C-H asym bend in -CH [39,40] from TEOS with 459 cm-1 from TPOZ and 500 cm-1 from PDMS with 482 cm-1 fr”
Electron Beam Irradiation on the Production of a Si- and Zr-Based Hybrid Material: A Study by FTIR and WDXRF DOI: 10.3390/ma16020489
या बँडसह स्पेक्ट्रम आहे का?
तुमचे FTIR स्पेक्ट्रम अपलोड करा आणि सेकंदात पूर्ण व्याख्या अहवाल मिळवा — साहित्य संदर्भांसह शिखर नियुक्त्या, लायब्ररी मॅचेस, आणि आत्मविश्वास-रेट केलेली पुरावा साखळी.