What absorbs at 1777 cm⁻¹ in an FTIR spectrum?
A band near 1777 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 4 cited sources
可能性のある官能基アサイン
| 官能基 | 裏付け事実 | 引用元 | 最高信頼度 |
|---|---|---|---|
| Carbonyl (C=O) | 2 | 2 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Thiocarbonyl | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
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これらのアサインの根拠となる文献
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Carbonyl (C=O) 信頼度 1.0
“Thus, the IR spectra of and show two strong absorption peaks becm-1, between 1777 and 1660 cm-1, which revealed the presence of two carbonyl groups.”
Synthesis and In Vitro Antimicrobial Evaluation of Photoactive Multi—Block Chalcone Conjugate Phthalimide and 1,8-Naphthalimide Novolacs DOI: 10.3390/polym13111859 -
Carboxyl (COOH) 信頼度 1.0
“cm-1) Identified CO O-H interactions.63 Materials via the Evolved Gas Analysis of SLI The observed (1777 and cm-1) bands were characteristic of vapor-phase (3576 wavenumber carboxylic acids and correlate very well with their respective (cm”
Assessment of the Thermal Degradation of Sodium Lauroyl Isethionate Using Predictive Isoconversional Kinetics and a Temperature-Resolved Analysis of Evolved Gases DOI: 10.1021/acs.iecr.9b00797 -
Thiocarbonyl 信頼度 1.0
“The suggestion is supported by cm-1) ν appearance of one intense band for the asC=C=S vibration of S=C=C(H)CH (1777.0 3 cm-1, 2N-C≡N ν ν and for the asNH and sNH vibrations of H (3466.0 and 3314.0 respec2”
Structure, Spectra and Photochemistry of 2-Amino-4-Methylthiazole: FTIR Matrix Isolation and Theoretical Studies DOI: 10.3390/molecules27123897 -
Alkyl C-H 信頼度 1.0
“For all cm-1, cm-1 cmmembranes, the typical polyimide peaks at 2957 2862 (both C-H stretch aliphatic), 1777”
Thur 等 - 2019 - Bipyridine-based UiO-67 as novel filler in mixed-m DOI: 10.1016/j.progpolymsci.2008.12.004.
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