What absorbs at 1306 cm⁻¹ in an FTIR spectrum?
A band near 1306 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
Тез жооп
A band near 1306 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.
Мүмкүн болгон функционалдык топтордун дайындоолору
| Функционалдык топ | Колдоочу фактылар | Цитаталанган булактар | Эң жогорку ишенимдүүлүк |
|---|---|---|---|
| Amide | 5 | 5 | 1.0 |
| Secondary amine | 4 | 4 | 1.0 |
| C n single bond | 4 | 4 | 1.0 |
| Methacrylate | 2 | 2 | 1.0 |
| Acetate | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| C c single bond | 2 | 2 | 1.0 |
| Carbonyl (C=O) | 2 | 2 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ester | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Chitosan | 1 | 1 | 1.0 |
| Nucleic acid | 1 | 1 | 1.0 |
Рейтинг жыйналган адабият далилдерин чагылдырат, бир авторитеттүү эрежени эмес. Ар дайым үлгү контекстиңизге каршы ырастаңыз.
Мүмкүн болгон материалдар
| Материал | Колдоочу чокулар | Кайталанган топтор | Цитаталанган булактар |
|---|---|---|---|
| polyurethane | 1306, 2270, 1700 | Methacrylate, Amide | 1 |
| Polypyrrole | 1306, 1700, 400 | Amide, Secondary amine, C n single bond | 1 |
Материалдар бир эле адабият бассейни бул тилкени жана жок дегенде бир кошумча мүнөздүү чокусун колдогондо гана көрсөтүлөт.
Спектр логикасы
This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 1306 cm⁻¹ is usually not enough for material identification by itself.
Реалдуу дүйнөдө колдонуу
Бул сурам полимерди аныктоо, белгисиз пластикти скринингдөө, сапатты көзөмөлдөө маселелерин чечүү, кайра иштетилген материалды текшерүү жана адабиятка таянып чокуларды дайындоону карап чыгууда кеңири таралган.
Кеңири таралган каталар
- Жок дегенде бир-эки колдоочу чокуну текшербей туруп, бир обочо тилкени материалдын далили катары кароо.
- Кайталанууну эске албай: бирдей толкун сандарына бир нече функционалдык топтор салым кошо алат.
- Кошумчалар, аралашмалар, кычкылдануу же булгануу спектрди бузушу мүмкүн болгондо текшерүүнү өткөрүп жиберүү.
Текшерүү кеңеши
Эки аныксыздык калганда, гипотезаны DSC, GC-MS же TGA менен текшериңиз, өзгөчө аралашмалар, бузулган үлгүлөр жана толтурулган полимерлер үчүн.
Бул дайындоолордун артындагы адабияттар
-
Nucleic acid ишенимдүүлүк 1.0
“1338cm(cid:2)1, 993cm(cid:2)1 which was not seen in Bacilwhich is due to nucleic acids, and the which located at that reason the peak at 1306 S.”
Use of Fourier transform infrared spectroscopy for rapid comparative analysis of Bacillus and Micrococcus isolates DOI: 10.1016/j.foodchem.2008.08.063 -
Amide ишенимдүүлүк 1.0
“The peak at 1306.3cm(cid:1)1(-C-N-) are assigned to the asymmetric and symfibers were washed and dried to obtain chitosan/polypyrrole metric stretching vibration of the polypyrrole (PPy), respectcomposite fibers and coded as CS-PPy1.”
Fabrication and Properties of Conductive Chitosan/Polypyrrole Composite Fibers DOI: 10.1080/03602559.2014.935420 -
Amide ишенимдүүлүк 1.0
“As isolated finish enable the peak located at ~2923 Technora fibres contain PPTA sequences similar to Twaron fibres, the spectra display some cm-1 peaks related to the amide functions in common [10]: the peak located at ~1639 is cm-1 is rel”
Derombise 等 - 2009 - Degradation of Technora aramid fibres in alkaline DOI: 10.1016/j.polymdegradstab.2009.07.021 -
Amide ишенимдүүлүк 1.0
“As Technora fibres contain PPTA sequences, Technora and Twaron fibres cm-1 spectra have some peaks related to the amide functions in common: the peak located at ~1639 cm-1 is related to the C=O vibration and the peak at ~1306 is related to”
Influence of finish treatment on the durability of aramid fibers aged under an alkaline environment DOI: 10.1002/app.31534 -
Amide ишенимдүүлүк 1.0
“chalcone carbonyl carbon symmetrical stretching absorption appeared at 1727 An cm-1 absorption band that appeared around 1306 corresponds to C-N stretching and the cm-1 sharp absorption bands that appeared around 1012 and 771 are due to imi”
Synthesis and In Vitro Antimicrobial Evaluation of Photoactive Multi—Block Chalcone Conjugate Phthalimide and 1,8-Naphthalimide Novolacs DOI: 10.3390/polym13111859 -
Amide ишенимдүүлүк 1.0
“Another indication that a trans-form of the secondary cm-1 acyclic amide gives band at 1306 was attributable to amide III band, of (CN)”
Ilic-Stojanovic 等 - 2018 - Thermosensitive hydrogels for modified release of DOI: 10.1080/00914037.2017.1354202 -
C c single bond ишенимдүүлүк 1.0
“cm-1 cm-1 V from C-COO stretching, 1098/1065 cm-1 (amorphous/crystalline) from C-O-C stretching, at β-(1→4) β-(1→4) from glycosidic linkage from inulin, at 1059 and 1270 cm-1 from C-O-C, C-O, and C-C glycosidic linkage from inulin, at 1059”
Synthesis and Characterization of Inulin-Based Responsive Polyurethanes for Breast Cancer Applications DOI: 10.3390/polym12040865 -
Hydroxyl (O-H) ишенимдүүлүк 1.0
“(C-O)h (O-H)h 1696 (O-H)c stretch (C-O)c bending bending stretch 1306 DP-M”
Somphon 和 Makatan - 2019 - Characterization of donepezil prepared by cogrindi DOI: 10.2306/scienceasia1513-1874.2019.45.028
Ушул тилке менен спектриңиз барбы?
FTIR спектриңизди жүктөп, толук интерпретация отчетун алыңыз — адабият цитаталары менен чоку дайындоолор, китепкана дал келүүлөрү жана ишенимдүүлүк баасы менен далилдер чынжыры — секунддар ичинде.