What absorbs at 1992 cm⁻¹ in an FTIR spectrum?
A band near 1992 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 |
|---|---|---|---|
| Aromatic ring | 3 | 3 | 1,0 |
| Amide | 3 | 2 | 1,0 |
| N h | 2 | 2 | 1,0 |
| Methoxy (OCH3) | 2 | 2 | 1,0 |
| Methacrylate | 2 | 2 | 1,0 |
| C-O single bond | 2 | 2 | 1,0 |
| Acetate | 2 | 2 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| Protein | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Alkyl C-H | 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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Alkyl C-H độ tin cậy 1,0
“Indian J Exp Biol C-H droxy group,H-bonded OH stretch, methylene stretch in James AA (1992) Mosquito molecular genetics: the hands that feed bite 257:37-38 back.”
Marimuthu 等 - 2013 - Eco-friendly microbial route to synthesize cobalt DOI: 10.1007/s00436-013-3601-2 -
độ tin cậy 1,0
“The Amide II band is due to combination of a C-N N 325 stretch and N-H deformation in the gelatin structure (Bandekar, 1992).”
Rheological, micro-structural and sensorial properties of camel milk yogurt as influenced by gelatin DOI: 10.1016/j.lwt.2018.09.008 -
Acetate độ tin cậy 1,0
“The peaks at 1757 and 1200 are attributed to the 22,p.97,J.O'M.Bockris,B.E.Conway,B.E.White,Editors,PlenumPress,New mode25 carbonyl stretching and C-O-C stretching modes of ~1992!.”
Sanicharane 等 - 2002 - In situ 50 degrees C FTIR spectroscopy of Pt and P DOI: 10.1149/1.1464883 -
Alkene (C=C) độ tin cậy 1,0
“thiocyanate, or isothiocyanate (-NCS) (monosubstituted) GSE-AgNPs 1634 Medium Alkenyl C=C stretch Olefinic alkene 1992/1966 Weak Aromatic combination bands Aromatic ring Transition metal carbonyls, The GC/MS analysis of GSE showed the prese”
The Antimicrobial Activities of Silver Nanoparticles from Aqueous Extract of Grape Seeds against Pathogenic Bacteria and Fungi DOI: 10.3390/molecules26196081 -
Amide độ tin cậy 1,0
“Saudi Pharm J 25:861-867 Bandekar J (1992) Amide modes and protein conformation.”
Theranostic RGD@Fe3O4-Au/Gd NPs for the targeted radiotherapy and MR imaging of breast cancer DOI: 10.1186/s12645-023-00214-6 -
Aromatic ring độ tin cậy 1,0
“The bands at 1421 and cm-1 1418 in PP and PS were assigned to the C-H deformation in methoxyl and aromatic skeletal vibrations in lignin (Faix 1992;”
Elmas 和 Yilgor - 2020 - Chemical and Thermal Characterizations of Pinus sy DOI: 10.1515/hf- -
Acetate độ tin cậy 1,0
“C-O C¼O and as the stretching gives a signal less intense than the stretching, this Carlsson,1992;”
One year monitoring by FTIR of γ-irradiated multilayer film PE/EVOH/PE DOI: 10.1016/j.radphyschem.2016.03.010 -
Amide độ tin cậy 1,0
“The C-N stretching vibrations coupled with N-H inplane bending vibrations, weak contributions from C-C bond stretching vibrations and C=O in-plane bending give rise to Amide III absorption (Bandekar 1992).”
Irfanita 等 - 2022 - Attenuated Total Reflectance-Fourier Transform Inf DOI: 10.21315/tlsr2022.33.2.7
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