What absorbs at 923 cm⁻¹ in an FTIR spectrum?
Ивица близо до 923 cm⁻¹ може да сочи към няколко функционални групи. По-долу са най-вероятните присвоявания, подредени по количеството публикувани доказателства, които ги подкрепят — всяко едно проследимо до литература (DOI) и кръстосано валидирано спрямо нашите 130 000+ референтни спектъра и графика на знанията.
Backed by 8 cited sources
Възможни определяния на функционални групи
| Функционална група | Подкрепящи факти | Цитирани източници | Най-висока достоверност |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1,0 |
| Hydroxyl (O-H) | 2 | 2 | 1,0 |
| Secondary amine | 2 | 2 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Phosphate (PO4) | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| N h | 1 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| Silicon nitrogen | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Carbonate | 1 | 1 | 1,0 |
Класирането отразява натрупаните литературни доказателства, а не единично авторитетно правило. Винаги потвърждавайте спрямо контекста на вашата проба.
Литература зад тези определяния
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Carbonate достоверност 1,0
“SO42(cid:2) 659.9 669.4 680.1 629.1 - - - - Due to bending vibration 715.7 713.5 720.8 720.8 714.1 715.0 713.3 715.7 - 877 874.3 874.2 874 874.7 874.3 874 878.6 Carbonate band 922.8 920.9 950.4 980.9 975.7 983.1 980.6 980.5 Peak shifts due”
Theoretical and experimental study of structures and properties of cement paste The nanostructural aspects of C–S–H DOI: 10.1016/j.jpcs.2011.05.001 -
достоверност 1,0
“cm-1 can be related to (iv) The prominent peak at 923 4.3 Interpretation of the Crystallization Behavior Si-O stretching with nonbridging oxygens and the of Hench's Bioglass and Related Substituted Glasses sharing of asymmetric stretching m”
El-Batal 等 - 2018 - Studies of Bone-Bonding Ability and Antibacterial DOI: 10.1007/s12633-017-9580-7 -
Carboxyl (COOH) достоверност 1,0
“1638.25cm-1 <1700cm-1 -COOH(C=OStretching) (Medium) cm-1 cm-1 <1700 (Medium) -COOH (C=O Stretching) 1638.25 1010.16cm-1 and922.53cm-1 ±1050cm-1 -COOH(C-OStretching)”
Validation of the Developed Zero-Order Infrared Spectrophotometry Method for Qualitative and Quantitative Analyses of Tranexamic Acid in Marketed Tablets DOI: 10.3390/molecules26226985 -
Alkyl C-H достоверност 1,0
“The peaks at 923 and 3.1 Film formation mechanism 1091-1 corresponds to the C-H symmetric stretching and C-H deformation vibrations, respectively.”
Thakur 和 Lokhande - 2017 - Effect of dip time on the electrochemical behavior DOI: 10.1515/epoly-2016-0160 -
Silicon nitrogen достоверност 1,0
“2.0 10.4 (3) Si-N stretching 923 983 - - sin3 9.2”
Ay 和 Aydinli - 2004 - Comparative investigation of hydrogen bonding in s DOI: 10.1016/j.optmat.2003.12.004 -
N h достоверност 1,0
“The weak band at 923 can be cm(cid:2)1, ascribed to the NH twisting, followed by a weak band at 889 which is related 3 cm(cid:2)1 to the ring deformation.”
Synthesis, crystal structure, and characterization of cyclohexylammonium tetraisothiocyanatocobaltate(II): A single-source precursor for cobalt sulfide and oxide nanostructures DOI: 10.1016/j.heliyon.2019. -
достоверност 1,0
“bond is observed near 430 cm cm-1 The band at 923 is due to the vibration modes of non-bridging oxygen's in alumino-”
Kumar 等 - 2022 - Synthesis and characterization of cordierite and c DOI: 10.15251/JOR.2022.184.609 -
Amide достоверност 1,0
“polysaccharides(e.g.,glucose) DNAandRNAribose-phosphatechain C-N+-Cstretching 923 vibrationofRNA PhosphodiestergroupsofPO21121 RNA”
Fourier-Transform Infrared Spectroscopy as a Discriminatory Tool for Myotonic Dystrophy Type 1 Metabolism: A Pilot Study DOI: 10.3390/ijerph18073800
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