Thiocyanate — FTIR absorption peaks and assignments
These are the characteristic FTIR wavenumbers where Thiocyanate 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 7 cited sources
Quick answer
Thiocyanate 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 Thiocyanate
Spectrum logic
A functional-group assignment becomes more reliable when several expected bands appear together. Use this page to find the strongest-supported peaks, then confirm that the same sample exhibits a coherent pattern rather than a single isolated hit.
Real-world usage
These pages are useful for unknown material analysis, peak explanation in reports, polymer troubleshooting, and verifying whether a candidate material family is chemically plausible.
Common mistakes
- Using one functional-group page as a complete material verdict without checking the rest of the spectrum.
- Assuming the strongest band is always the most diagnostic one.
- Forgetting that processing, additives, aging, and mixtures can shift or broaden expected peaks.
Verification advice
Use DSC, GC-MS, or TGA when several material families share similar bands or when mixture effects make the FTIR assignment uncertain.
Литература, лежащая в основе этих назначений
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2200 cm⁻¹ достоверность 1,0
“cm-1 SCN vibration, such as a sharp peak of CN group around 2200 If sharp peak around 2200 was observed, the presence of SCN in the crystal, either as coordinating ligand to cobalt(II) or as counter”
Khunur 等 - 2020 - Thiocyanate Doping in Gel-Growth Cobalt Oxalate Cr DOI: 10.1088/1757-899X/833/1/012017 -
2057 cm⁻¹ достоверность 1,0
“The amide A band, charcm-1 cm-1, acterized by a broad peak at 3273 and a medium-intensity narrow peak at 2057 (SCN-) corresponds to thiocyanate anions and is characteristic of saliva.”
Unlocking the Diagnostic Potential of Saliva: A Comprehensive Review of Infrared Spectroscopy and Its Applications in Salivary Analysis DOI: 10.3390/jpm13060907 -
3440 cm⁻¹ достоверность 1,0
“Fig.7.FromFig.7a,itcanbeobservedthatallthesamplesshow adsorption edge of as-prepared hybrids exhibit an obvious cm(cid:3)1 an absorption peak at 3440 which can be assigned to the redshi as compared to that of pure diatomite and SCN.”
Immobilization of g-C3N4 nanosheets on diatomite via electrostatic adsorption and their photocatalytic activity DOI: 10.1039/c8ra05408h -
2063 cm⁻¹ достоверность 1,0
“The band area at 2063 cm-1) indicates SCN- (SCN-, C-N stretching).”
Rodrigues 等 - 2019 - Differential Molecular Signature of Human Saliva U DOI: 10.1590/0103-6440201902228 -
2058 cm⁻¹ достоверность 0,8
“Band at 2058 cm-1 attributed to thiocyanate.”
The Role of the Preanalytical Step for Human Saliva Analysis via Vibrational Spectroscopy DOI: 10.3390/metabo13030393 -
2070 cm⁻¹ достоверность 0,8
“Text: 'shoulder at 2070' and 'SCN-'”
Johnson 等 - 2021 - An ultrafast vibrational study of dynamical hetero DOI: 10.1063/5.0044822 -
2100 cm⁻¹ достоверность 0,7
“Peak at 2100 cm-1 observed in 1900-2300 region, assigned to thiocyanate.”
Zhou ZhiYou 等 - 2013 - Kinetics of thiocyanate orientation conversion on DOI: 10.1007/s11434-012-5473-8
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