What absorbs at 1699 cm⁻¹ in an FTIR spectrum?
A band near 1699 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
Lehetséges funkcionális csoport hozzárendelések
| Funkcionális csoport | Támogató tények | Hivatkozott források | Legmagasabb megbízhatóság |
|---|---|---|---|
| Carboxyl (COOH) | 7 | 7 | 1,0 |
| Carbonyl (C=O) | 6 | 6 | 1,0 |
| Ester | 5 | 5 | 1,0 |
| Alkyl C-H | 4 | 4 | 1,0 |
| Methacrylate | 4 | 4 | 1,0 |
| Ketone | 4 | 4 | 1,0 |
| Amide | 4 | 4 | 1,0 |
| Acetate | 4 | 4 | 1,0 |
| Alkene (C=C) | 2 | 2 | 1,0 |
| Metal oxygen | 2 | 2 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| N h | 1 | 1 | 1,0 |
| Protein | 1 | 1 | 1,0 |
| Hydrogen bond | 1 | 1 | 1,0 |
A rangsor a felhalmozott irodalmi bizonyítékokat tükrözi, nem egyetlen tekintélyes szabályt. Mindig ellenőrizze a minta kontextusában.
A hozzárendelések mögötti irodalom
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Metal oxygen megbízhatóság 1,0
“A small band at the correspond to (1 0 1), (0 0 4), (2 0 0), (1 0 5), (2 1 1), (2 0 4), (1 1 6), cm-1 cm-1 and 1107 corresponds to Ti O C stretching mode 1699 2 0) and (2 1 5) plane values.”
Synthesis and characterization of polypyrrole/TiO2 composites by chemical oxidative method DOI: 10.1016/j.ijleo.2012.02.029 -
Hydrogen bond megbízhatóság 1,0
“Moreover, the peaks at 1699 and 2KBrpellets.TheinteractionofwaterwithKBrmightshiftthepeak increasing temperature might be due to that the hydrogen bonds 3500cm-1”
Hsu 和 Lin - 2009 - Rapid examination of the kinetic process of intram DOI: 10.1016/j.tca.2008.12.008 -
Carboxyl (COOH) megbízhatóság 1,0
“2-HP-(cid:2)-CD-TEL × 19 July 2013 Received lenges, we have synthesized a complex with stability constant (Kc) of 2.39 The in revised form 5 September 2013 Received cm-1 2-HP-(cid:2)-CD-TEL absence in the FTIR spectrum of complex of the cha”
Telmisartan complex augments solubility, dissolution and drug delivery in prostate cancer cells DOI: 10.1016/j.carbpol.2013.09.077 -
Carbonyl (C=O) megbízhatóság 1,0
“(%) narrow peak at 1699.29 is due to the carbonyl group of ester (eV) untreated RTV POPT-RTV (C=O linkage (ester group), whereas the carbonyl group carbonyl”
Novel pulsed oxygen plasma mediated surface hydrophılizatıon of ritonavır for the enhancement of wettability and solubility DOI: 10.1016/j.jddst.2021.102497 -
Ester megbízhatóság 1,0
“In the amide I region, a large negative peak around Q peak with weak negative side peaks (Figure 3), suggests that CdO cm-1, appeared at 1674 and the peaks at 1699, 1685, 1664, the effect of Q A/Q reduction on the 10a-ester vibration B cm-1”
Suzuki 等 - 2005 - Fourier transform infrared spectrum of the seconda DOI: 10.1021/bi051237g -
Carboxyl (COOH) megbízhatóság 1,0
“LLM confirmed rule peak-group candidate”
Wang 等 - 2012 - Controlled network structure and its correlations DOI: 10.1039/c2ra00021k -
Acetate megbízhatóság 1,0
“In addition, a C=O peak observed at 1699 cm-1 cm-1, systems were at 2852 and 2939 corresponding to C-H symmetric and asymcm-1, in addition to a peak at 1413 cm-1, corresponded to the CH2 detected in all samples.”
Structural Conformation Comparison of Different Clear Aligner Systems: An In Vitro Study DOI: 10.3390/dj10050073 -
Acetate megbízhatóság 1,0
“behavior reflects the highly crystalline structure foregoing is a typical broadening and shift of the of menthol or more precisely the absence of cm-1 C=O band at 1699 of capric acid to a higher amorphous regions which usually undergo glass”
Ali 等 - 2020 - New insight into single phase formation of capric DOI: 10.4314/tjpr.v19i2.19
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