What absorbs at 770 cm⁻¹ in an FTIR spectrum?
A band near 770 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
تعيينات المجموعات الوظيفية المحتملة
| مجموعة وظيفية | حقائق داعمة | المصادر المستشهد بها | أعلى ثقة |
|---|---|---|---|
| Metal oxygen | 2 | 1 | 1,0 |
| C-S single bond | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Urethane | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
يعكس الترتيب الأدلة الأدبية المتراكمة، وليس قاعدة واحدة موثوقة. تأكد دائمًا من سياق عينتك.
الأدبيات وراء هذه التعيينات
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الثقة 1,0
“O-O the shoulder at 770 can be assigned to the stretching support to the latter "nucleophilic attack mechanism", as Ti-18O-18O-Ti.”
Nakamura 和 Nakato - 2004 - Primary intermediates of oxygen photoevolution rea DOI: 10.1021/ja0388764CCC -
Hydroxyl (O-H) الثقة 1,0
“Obtained Wavenumber Reference Wavenumber Functional Group/Fingerprint ObtainedWavenumber ReferenceWavenumber FunctionalGroup/Fingerprint cm-1 cm-1 2965.11 ±3000 (Strong & Board) -COOH (O-H Stretching) 2965.11cm-1 ±3000cm-1 -COOH(O-HStretchi”
Validation of the Developed Zero-Order Infrared Spectrophotometry Method for Qualitative and Quantitative Analyses of Tranexamic Acid in Marketed Tablets DOI: 10.3390/molecules26226985 -
Urethane الثقة 1,0
“The peak at 770 is attributed to the bending vibration peak in vibration peak in the carbamate formed by the reaction.”
The Effect of Glycidyl Azide Polymer Grafted Tetrafunctional Isocyanate on Polytriazole Polyethylene Oxide-Tetrahydrofuran Elastomer and its Propellant Properties DOI: 10.3390/polym12020278 -
Aromatic ring الثقة 1,0
“LLM confirmed rule peak-group candidate”
Mahapatra 等 - 2023 - Chemically activated carbon preparation from natur DOI: 10.2166/wst.2023.004 -
Carboxyl (COOH) الثقة 1,0
“The changes on the bands of reactive groups may also 895cm-1, 770cm-1 and Additionally, new peaks appeared at be explained by the protonation of reactive groups: carboxylate groups 467cm-1 Cr]O, CreO corresponding to the stretching vibratio”
Mo 等 - 2019 - New highly-percolating alginate-PEI membranes for DOI: 10.1016/j.carbpol.2019.115177 -
Carbohydrate الثقة 1,0
“770 are bands associated with the oscillations of the (δ anomeric region of carbohydrates or deformation C-H (C-H)).”
Samborska 等 - 2018 - Membrane Processing in the Sustainable Production DOI: 10.3390/app8071082 -
Metal oxygen الثقة 1,0
“Polymers 2022, 14, x FOR PEER REVIEW 6 of 12 predominantly characterized by metal-oxygen chemical bonds, which appear on the FTIR spectrum as absorption bands associated with the valence vibrations of Ti-O-Ti bonds at 770 and 620 cm-1.”
Carbon Modification of K1.6Fe1.6Ti6.4O16 Nanoparticles to Optimize the Dielectric Properties of PTFE-Based Composites DOI: 10.3390/polym14194010 -
C-S single bond الثقة 1,0
“The vibrations of C-S bonds can be observed at about 770 cm-1.”
Preliminary Investigation on Auto-Thermal Extrusion of Ground Tire Rubber DOI: 10.3390/ma12132090
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