What absorbs at 853 cm⁻¹ in an FTIR spectrum?
A band near 853 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
Gán nhóm chức có thể
| Nhóm chức | Sự kiện hỗ trợ | Nguồn tham khảo | Độ tin cậy cao nhất |
|---|---|---|---|
| Methoxy (OCH3) | 4 | 4 | 1,0 |
| Methacrylate | 4 | 4 | 1,0 |
| Acetate | 4 | 4 | 1,0 |
| Alkyl C-H | 3 | 3 | 1,0 |
| Silicon (Si) | 3 | 3 | 1,0 |
| C-O single bond | 3 | 3 | 1,0 |
| Silicon-oxygen (Si-O) | 2 | 2 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| Chlorine | 1 | 1 | 1,0 |
| Oxygen heterocycle | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Methyl | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Protein | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Metal oxygen | 1 | 1 | 1,0 |
Xếp hạng phản ánh bằng chứng tài liệu tích lũy, không phải một quy tắc duy nhất có thẩm quyền. Luôn xác nhận với ngữ cảnh mẫu của bạn.
Tài liệu tham khảo đằng sau các gán này
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Acetate độ tin cậy 1,0
“In ATMC the 1289cm-1 ringbreathingmodeisobservedat853cm-1 1351 and corresponds to the C O stretching mode.”
Arjunan 等 - 2007 - Fourier transform infrared and Raman spectral assi DOI: 10.1016/j.saa.2006.09.044 -
Metal oxygen độ tin cậy 1,0
“The A cm-1 absorption band at 853 is attributed to metal oxygen stretching vibrations at tetrahedral site M due to Fe-O at A site.”
Effect of Gd and Nb on Dielectric and Magnetic Transition temperature of BaTiO3- Li0.5Fe2.5O4 Composites DOI: 10.1016/j.physb.2019.02.035 -
Amide độ tin cậy 1,0
“Normal cervix tissues are characterized by strong, broad amide I, cm(cid:1)1 broader amide III and strong peaks at 853 and 938 which can be attributed to structural proteins such as collagen.”
Krishna 等 - 2006 - Raman spectroscopy studies for diagnosis of cancer DOI: 10.1016/j.vibspec.2006.01.011 -
Silicon (Si) độ tin cậy 1,0
“1) of the Si-Hf-O-C gel crosslinked at 60 °C shows the absorption bands for cm-1 853cm-1 cm-1, [15], Si-CH at 1268 and [16], Si-C at 803 and these functionalities C-H at 1388 3”
Shou 等 - 2012 - Fabrication of the SiOCHfO2 Ceramic Composites by DOI: 10.4028/www.scientific.net/KEM.512-515.912 -
Alkene (C=C) độ tin cậy 1,0
“The C=C has a stretching vibration at 1515cm-1 853cm-1 1376cm-1 and bending vibration at [45].”
HPTLC and FTIR Fingerprinting of Olive Leaves Extracts and ATR-FTIR Characterisation of Major Flavonoids and Polyphenolics DOI: 10.3390/molecules26226892 -
Acetate độ tin cậy 1,0
“1057 Strong C-O stretching Primary alcohol 853, 769, 615 Strong”
Evaluation of anticandidal activities and phytochemical examination of extracts prepared from DOI: 10.1186/s12906-022-03552-x -
độ tin cậy 1,0
“9c), as well as a peak at 852.7 eV [50], PM-IRAS only displays the surface adsorbed species, characteristic of metallic Ni (not shown).”
Surface Spectroscopy on UHV-Grown and Technological Ni–ZrO2 Reforming Catalysts: From UHV to Operando Conditions DOI: 10.1007/s11244-016-0678-8 -
độ tin cậy 1,0
“cm-1, silicon are also denoted by the vibrational band at 950 which is assigned to Si-O cm-1 cm-1 stretching [7,20,21] and the bands at 853 and 804 are assigned to Si-(CH 3) 2 skeletal vibration and Si-O-C stretching, both in the same range”
The Origin and Physico-Chemical Properties of Some Unusual Earth Rock Fragments DOI: 10.3390/app12030983
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