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 6 cited sources
Gán nhóm chức có thể
| Nhóm chức | Sự kiện hỗ trợ | Nguồn tham khảo | Độ tin cậy cao nhất |
|---|---|---|---|
| Carboxyl (COOH) | 3 | 3 | 1,0 |
| Alkyl C-H | 2 | 2 | 1,0 |
| Protein | 1 | 1 | 1,0 |
| Hydrogen bond | 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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Hydrogen bond độ tin cậy 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) độ tin cậy 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 -
Carboxyl (COOH) độ tin cậy 1,0
“LLM confirmed rule peak-group candidate”
Wang 等 - 2012 - Controlled network structure and its correlations DOI: 10.1039/c2ra00021k -
Protein độ tin cậy 1,0
“and (iv) the appearance of two IR bands According to Figure 5, the IR spectrum of protein G is dominated by two IR bands with maxima at 1699 and 1780 cm-1, both assigned to the C=O vibrational mode whose cm-1, at 1518 and 1634 which were as”
Optical Evidence for the Assembly of Sensors Based on Reduced Graphene Oxide and Polydiphenylamine for the Detection of Epidermal Growth Factor Receptor DOI: 10.3390/coatings11020258 -
Alkyl C-H độ tin cậy 1,0
“The spectra for amlodipine besylate drug (Figure 4b) show peaks at 2964.69 for C-CH stretching, at 1698.53,”
Formulation, optimization, and characterization of amlodipine besylate loaded polymeric nanoparticles DOI: 10.1177/09673911211056154 -
Carboxyl (COOH) độ tin cậy 1,0
“The FTIR spectrum of this compound showed The and NMR spectra of compounds 8 and 9 are characteristic absorption bands to carboxylic acid at 1699 and very similar to those of 5.”
Holzbach 等 - 2017 - Phenylethylpyranone and Aristolochic Acid Derivati DOI: 10.21577/0103-5053.20170059
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