What absorbs at 933 cm⁻¹ in an FTIR spectrum?
A band near 933 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 933 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 |
|---|---|---|---|
| Methoxy (OCH3) | 4 | 4 | 1.0 |
| Methacrylate | 4 | 4 | 1.0 |
| Acetate | 4 | 4 | 1.0 |
| Alkyl C-H | 3 | 3 | 1.0 |
| C-O single bond | 3 | 3 | 1.0 |
| Phosphate (PO4) | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| Silicon (Si) | 2 | 2 | 1.0 |
| C c single bond | 2 | 2 | 1.0 |
| Metal oxygen | 2 | 1 | 1.0 |
| Methyl | 1 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
| Silanol (Si-OH) | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Borate | 1 | 1 | 1.0 |
| Nucleic acid | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
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 |
|---|---|---|---|
| Silica | 933, 1100, 1080 | Alkyl C-H, Methacrylate, Acetate | 1 |
| Polypropylene | 933, 1030, 1600 | 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 933 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
-
आत्मविश्वास 1.0
“It is possible that the new peak of 933.03 eV may be due to Cu (I) species, while the energy band of 935.23 eV could be assumed to be due to Cu”
Ibrahim 等 - 2022 - Effect of Ammonium Sulfide on Sulfidization Flotat DOI: 10.3390/min12101193 -
C c single bond आत्मविश्वास 1.0
“At the length of the wavenumber of 933 another peak also appears, appears, indicating the presence of a C-C bond group.”
Glass Powder Additive on Recycled Polypropylene Filaments: A Sustainable Material in 3D Printing DOI: 10.3390/polym14010005 -
C c single bond आत्मविश्वास 1.0
“The films (C-C in melting temperature is higher for drawn at a higher bands at 933 and 947 (CH rocking);”
Vasanthan 和 Manne - 2013 - Strain-Induced Crystallization and Conformational DOI: 10.1021/ie401783y -
Phosphate (PO4) आत्मविश्वास 1.0
“cm-1, assignments of the phosphate related peaks are as follows: P-O stretching at 776 P-O-C cm-1, cm-1, cmsymmetric stretching at 933 P-O-C assymetric stretching at 1050 P=O at 1240 1.”
An appraisal of the thermal decomposition mechanisms of ILs as potential lubricants DOI: 10.1002/ls.1457 -
Carbohydrate आत्मविश्वास 1.0
“cm-1 (1) Band at 933 (assigned to carbohydrates) is specific for Col fungi (Fig.”
Erukhimovitch 等 - 2010 - Direct identification of potato's fungal phyto-pat DOI: 10.3233/SPE-2010-0483 -
Silicon (Si) आत्मविश्वास 1.0
“XPS A strong peak at 932.54 eV by Cu2p 3/2 EDAX The spectrum revealed the presence of elements like C, N, O, Si and Cu.”
Gupta 等 - 2015 - Silica functionalized Cu(II) catalysed selective o DOI: 10.1007/s12039-015-0902-2 -
Acetate आत्मविश्वास 1.0
“cm-1 cm-1 were observed at 1076 (C-O, axial deformation), 933 cm-1 (characteristic of 3, 6-anhydrogalactose) and 889 (attributed to Fourier transform infrared spectroscopy carbon)[16].”
Hu 等 - 2012 - Preparation of Berbamine Loaded Chitosan-agarose M DOI: 10.1590/S0104-14282012005000073 -
Acetate आत्मविश्वास 1.0
“Firstly in HeLa cells, the band at 933 was assigned to the vibrational mode of the C-O-C ring of deoxyribose in Z-form DNA (Banyay et al., 2003;”
Le Roux 等 - 2015 - Fourier Transform Infrared spectroscopy discloses DOI: 10.1016/S0301-4622
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.