Bromine — FTIR absorption peaks and assignments
These are the characteristic FTIR wavenumbers where Bromine tends to absorb, compiled from published literature and ranked by supporting evidence. Each assignment is traceable to a source (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
Ātra atbilde
Bromine is usually assigned by looking for a recurring cluster of characteristic peaks rather than one exact textbook number. The table below shows where the literature most often places this group in FTIR, ranked by accumulated evidence.
Characteristic FTIR peaks for Bromine
| Vilnu skaitlis (cm⁻¹) | Atbalstošie fakti | Citētie avoti | Augstākā pārliecība |
|---|---|---|---|
| 1545 | 6 | 5 | 1,0 |
| 1490 | 4 | 2 | 1,0 |
| 1637 | 2 | 2 | 1,0 |
| 1540 | 2 | 2 | 1,0 |
| 500 | 2 | 2 | 1,0 |
| 1400 | 2 | 2 | 1,0 |
| 651 | 2 | 2 | 1,0 |
| 1435 | 2 | 1 | 1,0 |
| 990 | 1 | 1 | 1,0 |
| 402 | 1 | 1 | 1,0 |
| 1680 | 1 | 1 | 1,0 |
| 1393 | 1 | 1 | 1,0 |
| 3400 | 1 | 1 | 1,0 |
| 3612 | 1 | 1 | 1,0 |
| 1539 | 1 | 1 | 1,0 |
| 1495 | 1 | 1 | 1,0 |
| 3630 | 1 | 1 | 1,0 |
| 1450 | 1 | 1 | 1,0 |
| 3408 | 1 | 1 | 1,0 |
| 2159 | 1 | 1 | 1,0 |
| 3375 | 1 | 1 | 1,0 |
| 2170 | 1 | 1 | 1,0 |
| 3610 | 1 | 1 | 1,0 |
| 961 | 1 | 1 | 1,0 |
| 1551 | 1 | 1 | 1,0 |
| 1662 | 1 | 1 | 1,0 |
| 540 | 1 | 1 | 1,0 |
| 1444 | 1 | 1 | 1,0 |
| 751 | 1 | 1 | 1,0 |
| 970 | 1 | 1 | 1,0 |
Showing the 30 best-supported peaks of 78 total for Bromine.
Spektra loģika
Funkcionālās grupas piešķiršana kļūst ticamāka, ja kopā parādās vairākas sagaidāmās joslas. Izmantojiet šo lapu, lai atrastu spēcīgāk atbalstītos pīķus, pēc tam apstipriniet, ka tas pats paraugs uzrāda saskaņotu modeli, nevis vienu izolētu trāpījumu.
Reālās pasaules izmantošana
Šīs lapas ir noderīgas nezināmu materiālu analīzei, pīķu skaidrošanai pārskatos, polimēru problēmu risināšanai un pārbaudei, vai kandidātmateriālu grupa ir ķīmiski ticama.
Biežākās kļūdas
- Izmantojot vienu funkcionālās grupas lapu kā pilnīgu materiāla spriedumu, nepārbaudot pārējo spektru.
- Pieņemot, ka spēcīgākā josla vienmēr ir visdiagnostiskākā.
- Aizmirstot, ka apstrāde, piedevas, novecošana un maisījumi var novirzīt vai paplašināt paredzamos pīķus.
Verifikācijas padoms
Izmantojiet DSC, GC-MS vai TGA, kad vairākas materiālu grupas dalās ar līdzīgām joslām vai kad maisījumu efekti padara FTIR piešķīrumu nenoteiktu.
Literatūra aiz šiem piešķīrumiem
-
656 cm⁻¹ pārliecība 1,0
“The antioxidant activity of crude extract of cm-1 ammi The peak at 655.80 shows C-Br stretching.”
Bawazeer 等 - 2021 - Synthesis, Characterization and Bioactivity Profil DOI: 10.22207/JPAM.15.2.11 -
1435 cm⁻¹ pārliecība 1,0
“12) exhibit dominant peaks at 1435 and 1714 The peak cm-1is (cid:3) at 1435 assigned to the 4(F) bending mode of Brönsted acid”
Low-temperature selective catalytic reduction of NO with NH3 over V/ZrO2 prepared by flame-assisted spray pyrolysis: Structural and catalytic properties DOI: 10.1016/j.apcatb.2012.08.012 -
2930 cm⁻¹ pārliecība 1,0
“FT-IR characterization showed character at 2930.43 cm-1, and the disappearance of C-Br peak at 687.37 indicates the presence of long chain alkyl group and the replacement of Br with triphenylphosphonium.”
Furoida 和 Ulfa - 2019 - Synthesis of 3-(7-triphenylphosphonioheptyl)-2,6-d DOI: 10.1088/1757-899X/546/6/062008 -
663 cm⁻¹ pārliecība 1,0
“The intense bands situated at about 663 and 1025cm-1 of wavelength were assigned to the stretching vibrational movement of C-Br and”
Jing 等 - 2019 - Biosynthesis of copper oxide nanoparticles and the DOI: 10.1016/j.jphotobiol.2019.111557 -
414 cm⁻¹ pārliecība 1,0
“This is due to the formation of Ag/ (cid:3)C peak present at 414 corresponds to the melting of AgX which was used to increase the absorption of AgX (Br & F).”
Lakshmanamoorthy 和 Manivannan - 2022 - Ionic liquids assist synthesis of AgAgX (X = Cl, DOI: 10.1007/s10854-021-06774-w -
645 cm⁻¹ pārliecība 1,0
“The cm(cid:0) Br-C 1 sensitive PLA-naringin coaxial electrospun fiber membrane, was stored absorption peaks at 645, 506, and 3500 were caused by the ◦C, Br-C”
Preparation of pH-sensitive polylactic acid-naringin coaxial electrospun fiber membranes for maintaining and monitoring salmon freshness DOI: 10.1016/j.ijbiomac.2021.08.087 -
3577 cm⁻¹ pārliecība 1,0
“O-H Two water stretching bands of BR at 3607 and 3577 cm-1 seen in the L minus BR difference spectrum are affected by mutation of Thr46 (27, 36).”
Maeda 等 - 1999 - Chromophore-protein-water interactions in the L in DOI: 10.1021/bi9907072 -
405 cm⁻¹ pārliecība 1,0
“5 we have reinvestigate the infrared spectrum of the gaseous assigned to Mn C O bending vibrations and band observed at 425cm-1 sample of these compounds which are known to be pure, so that 416, 418, belong to Mn C axial stretching vibratio”
Mahmood 等 - 2006 - Comparative vapour phase FTIR spectra and vibratio DOI: 10.1016/j.saa.2005.11.024
See Bromine in your own spectrum
Augšupielādējiet savu FTIR spektru un dažu sekunžu laikā iegūstiet pilnu interpretācijas ziņojumu — maksimumu piešķīrumus ar literatūras atsaucēm, bibliotēku saskaņošanu un pārliecības līmeņa pierādījumu ķēdi.