What absorbs at 1666 cm⁻¹ in an FTIR spectrum?
A band near 1666 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
संभाव्य कार्यात्मक-गट नियुक्त्या
| कार्यात्मक गट | समर्थन करणारी तथ्ये | उद्धृत स्रोत | सर्वोच्च आत्मविश्वास |
|---|---|---|---|
| Carbonyl (C=O) | 3 | 3 | 1.0 |
| N h | 2 | 2 | 1.0 |
| Protein beta turn | 2 | 2 | 0.9 |
| Amide | 2 | 2 | 0.9 |
| Alkene (C=C) | 1 | 1 | 0.9 |
रँकिंग संचित साहित्य पुरावा प्रतिबिंबित करते, एकच अधिकृत नियम नाही. नेहमी तुमच्या नमुना संदर्भाविरुद्ध पुष्टी करा.
या नियुक्त्यांमागील साहित्य
-
N h आत्मविश्वास 1.0
“Explicit assignment in text: 'peaks at 1723.23 and 1666.12 assigned to COO- and NH groups'”
Mahmud 等 - 2010 - Kinetic Analysis of Oleic Acid Esterification Usin DOI: 10.1021/ie900704n -
Carbonyl (C=O) आत्मविश्वास 1.0
“Explicit assignment in text”
Setyawati 等 - 2017 - Synthesis and Characterization of Novel Benzohydra DOI: 10.1063/1.4978194 -
Protein beta turn आत्मविश्वास 0.9
“Explicit assignment: 'at 1672 and 1666 the β-turns'”
Kristo 等 - 2021 - Optimization of layering technique and secondary s DOI: 10.1371/journal.pone.0260603 -
Carbonyl (C=O) आत्मविश्वास 0.9
“Explicitly assigned as C=O stretch.”
Nowak 和 Sikorski - 2023 - Structural diversity of cocrystals formed from acr DOI: 10.1039/d3ra02300a -
Alkene (C=C) आत्मविश्वास 0.9
“Pronounced peak assigned to C=C stretching vibrations.”
Trpkov 等 - 2022 - Fast, eco-friendly synthesis of blue luminescent n DOI: 10.21203/rs.3.rs-1527206/v1 -
Carbonyl (C=O) आत्मविश्वास 0.9
“Text: 'carbonyl stretch vibration at 1666 observed by FTIR cm-1 belongs to the' (amide context).”
Wu 等 - 2018 - Effective Conversion of Amide to Carboxylic Acid o DOI: 10.3390/membranes8020020 -
Protein beta turn आत्मविश्वास 0.9
“Explicit assignment in text: 'β-turn ... (1,666 cm-1)'”
Yamazaki 等 - 2017 - Protein Phosphorylation and Mineral Binding Affect DOI: 10.3389/fphys.2017.00450 -
Amide आत्मविश्वास 0.8
“Spectral down-shift in amide-I band (1666-1656 cm-1)”
Katayama 等 - 2021 - Vibrational spectroscopy analysis of ligand effica DOI: 10.1038/s42003-021-02836-1
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.
माझ्या स्पेक्ट्रमचे व्याख्या करा