What absorbs at 1662 cm⁻¹ in an FTIR spectrum?
A band near 1662 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 7 cited sources
ਸੰਭਾਵਿਤ ਫੰਕਸ਼ਨਲ-ਗਰੁੱਪ ਅਸਾਈਨਮੈਂਟਾਂ
| ਫੰਕਸ਼ਨਲ ਗਰੁੱਪ | ਸਹਾਇਕ ਤੱਥ | ਹਵਾਲਾ ਦਿੱਤੇ ਸਰੋਤ | ਉੱਚ ਵਿਸ਼ਵਾਸ |
|---|---|---|---|
| Alkene (C=C) | 3 | 3 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Oxygen heterocycle | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Nucleic acid | 1 | 0 | 1.0 |
ਰੈਂਕਿੰਗ ਸੰਚਿਤ ਸਾਹਿਤ ਸਬੂਤਾਂ ਨੂੰ ਦਰਸਾਉਂਦੀ ਹੈ, ਇੱਕ ਸਿੰਗਲ ਅਧਿਕਾਰਤ ਨਿਯਮ ਨਹੀਂ। ਹਮੇਸ਼ਾਂ ਆਪਣੇ ਨਮੂਨੇ ਦੇ ਸੰਦਰਭ ਦੇ ਵਿਰੁੱਧ ਪੁਸ਼ਟੀ ਕਰੋ।
ਇਹਨਾਂ ਅਸਾਈਨਮੈਂਟਾਂ ਪਿੱਛੇ ਸਾਹਿਤ
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Carbonyl (C=O) ਵਿਸ਼ਵਾਸ 1.0
“stretching peak was observed at 1076 In addition, there was also a strong intensity cm-1 peak for the C=O bond at 1662 (Figure S1, Supplementary File).”
Synthesis, Characterization, Theoretical and Experimental Anticancer Evaluation of Novel Cocrystals of 5-Fluorouracil and Schiff Bases against SW480 Colorectal Carcinoma DOI: 10.3390/pharmaceutics15071929 -
Aromatic ring ਵਿਸ਼ਵਾਸ 1.0
“The FTIR spectrum of GW2 showed cm-1 𝜋r2]0.5 D characteristic peaks for C-H stretch at 2944 and C=C t0.5, S 4 ∙ = (6) cm-1 [ aromatic stretch at 1662 and NH stretch of amide at”
Owonubi 等 - 2018 - Characterization and in vitro release kinetics of DOI: 10.1007/s40090-018-0139-2 -
Alkene (C=C) ਵਿਸ਼ਵਾਸ 1.0
“The hydrocarbon characteristics absorption peaks at 1662 cm-1, 1375 cm-1, and 837 cm-1 relate to the stretching vibrations of C=C bonds, bending cm-1, cm-1, cm-1 1448 1375 and 837 relate to the stretching vibrations of C=C bonds, vibrations”
Potency of Urea-Treated Halloysite Nanotubes for the Simultaneous Boosting of Mechanical Properties and Crystallization of Epoxidized Natural Rubber Composites DOI: 10.3390/polym13183068 -
Alkene (C=C) ਵਿਸ਼ਵਾਸ 1.0
“In cm-1 C=C as well as a band at 1662 related to the stretching of the alkene were observed.”
Synthesis and Characterization of Novel Resveratrol Butyrate Esters That Have the Ability to Prevent Fat Accumulation in a Liver Cell Culture Model DOI: 10.3390/molecules25184199 -
Alkene (C=C) ਵਿਸ਼ਵਾਸ 1.0
“In addition, Antioxidants2021,10,420 5of14 cm-1, a small band at approximately 3020 which was associated with the alkene and cm-1, aromatic C-H vibrations, and a band at 1662 which was ascribed to the alkene C=C”
Synthesis of Short-Chain-Fatty-Acid Resveratrol Esters and Their Antioxidant Properties DOI: 10.3390/antiox10030420 -
Carboxyl (COOH) ਵਿਸ਼ਵਾਸ 1.0
“amino group and the primary amino group, and carboxylic acid group cm(cid:0) cm(cid:0) 1, 1, The main characteristic peaks appear at 1662 inside the protein molecule can also react with the epoxy group with 1409 cm(cid:0) cm(cid:0)”
Curing mechanism of triglycidylamine crosslinked soybean protein adhesive analyzed by Fourier transform infrared, second derivative infrared and two-dimensional correlation spectroscopy DOI: 10.1016/j.ijadhadh.2021.102825 -
Alkyl C-H ਵਿਸ਼ਵਾਸ 1.0
“Protein 1662 cm-1 Stretching C-H Lipids 2946 Figure 3.”
Salivary ATR-FTIR Spectroscopy Coupled with Support Vector Machine Classification for Screening of Type 2 Diabetes Mellitus DOI: 10.3390/diagnostics13081396
ਕੀ ਇਸ ਬੈਂਡ ਨਾਲ ਇੱਕ ਸਪੈਕਟ੍ਰਮ ਹੈ?
ਆਪਣਾ FTIR ਸਪੈਕਟ੍ਰਮ ਅੱਪਲੋਡ ਕਰੋ ਅਤੇ ਸਕਿੰਟਾਂ ਵਿੱਚ ਇੱਕ ਪੂਰੀ ਵਿਆਖਿਆ ਰਿਪੋਰਟ ਪ੍ਰਾਪਤ ਕਰੋ — ਪੀਕ ਅਸਾਈਨਮੈਂਟਾਂ, ਲਾਇਬ੍ਰੇਰੀ ਮੈਚ, ਅਤੇ ਇੱਕ ਵਿਸ਼ਵਾਸ-ਦਰਜਾ ਪ੍ਰਾਪਤ ਸਬੂਤ ਲੜੀ।
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