What absorbs at 674 cm⁻¹ in an FTIR spectrum?
A band near 674 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 5 cited sources
Возможные назначения функциональных групп
| Функциональная группа | Подтверждающие факты | Цитируемые источники | Максимальная достоверность |
|---|---|---|---|
| Metal oxygen | 2 | 2 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
| C-S single bond | 1 | 1 | 1,0 |
| N n bond | 1 | 1 | 1,0 |
Ранжирование отражает накопленные литературные данные, а не единственное авторитетное правило. Всегда проверяйте в контексте вашего образца.
Литература, лежащая в основе этих назначений
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N n bond достоверность 1,0
“cm-1, extra absorption bands at 674 and 1589 at the same 0exp(-σ D) = N N time the other absorption bands completely destructed with σ where is the cross section.”
Nagabhushana 等 - 2009 - Swift heavy ion irradiation induced phase transfor DOI: 10.1016/j.ssc.2009.07.049 -
Metal oxygen достоверность 1,0
“LLM confirmed rule peak-group candidate”
Wang 和 Jiang - 2011 - Synthesis and Characterization of LiNbO3 Powders b DOI: 10.1080/00150193.2011.554260 -
C-S single bond достоверность 1,0
“O-H To investigate the stability and with stretching and confirms the presence of Lcysteine.37 cm-1 C-S reusability of NZC-g-PANI, the simultaneous BG and MO dye The short band at 674 represents the adsorption-desorption tests were executed”
Bir 等 - 2022 - Multifunctional Ternary NLPZnO@L-cysteine-grafted DOI: 10.1021/acsomega.2c04936 -
Alkyl C-H достоверность 1,0
“The peak at 1041 is of a primary alcoholic group of cm-1 CH 2OH and another peak at 674 may be due to CH rocking vibrations, (Deo et al., 2001).”
Farghaly 等 - 2021 - Physicochemical study and application for pyrolusi DOI: 10.37190/ppmp/131944 -
Metal oxygen достоверность 1,0
“LLM confirmed rule peak-group candidate”
Heteropolyacid coupled with cyanoguanidine decorated magnetic chitosan as an efficient catalyst for the synthesis of pyranochromene derivatives DOI: 10.1038/s41598-022-21196-2
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