What absorbs at 475 cm⁻¹ in an FTIR spectrum?
A band near 475 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 7 cited sources
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Metal oxygen | 4 | 4 | 0.9 |
| Phosphate (PO4) | 1 | 1 | 0.9 |
| Metalloid oxygen | 1 | 1 | 0.9 |
| S s | 1 | 1 | 0.7 |
| C-O single bond | 1 | 1 | 0.7 |
排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。
這些指派背後的文獻
-
Metal oxygen 信心 0.9
“Text states 'peaks shifted from 474.7 to 499.4 cm-1. These peaks are due to Nb-O, Te-O-Te and O-Te-O bond linkage bending vibration.'”
Nurhafizah 等 - 2016 - Er3+ Nd3+ concentration dependent spectral featur DOI: 10.1016/j.jnoncrysol.2016.04.002 -
Phosphate (PO4) 信心 0.9
“Text: 'bands in the region of 475, 580, 1045 e 1100 corresponding the PO groups vibration'”
Oliveira 等 - 2009 - Comparison of calcium CPP, HAp and TeCP phosphates DOI: 10.4028/www.scientific.net/KEM.396-398.557 -
Metal oxygen 信心 0.9
“Explicit assignment: Zn-O stretching band at 475 cm-1.”
Pal 和 Manam - 2013 - Photoluminescence and thermoluminescence studies o DOI: 10.1016/j.mseb.2013.01.006 -
Metal oxygen 信心 0.9
“Assigned to CuO.”
Bousalah 等 - 2022 - Enhanced reactivity of the CuO-Fe2O3 intimate hete DOI: 10.21203/rs.3.rs-1276158/v1 -
Metal oxygen 信心 0.8
“Stretching vibration of Cr-O bonding in 500-450 cm-1 region.”
Coskun 等 - 2019 - Synthesis, characterization and wide range frequen DOI: 10.1016/j.mseb.2019.114410 -
信心 0.7
“d-OH and c-OH bands shifted to higher wavenumbers”
Salama 等 - 2015 - Spectroscopic characterization of iron ores formed DOI: 10.1016/j.saa.2014.10.090 -
S s 信心 0.7
“Text mentions 'disulfide (-S-S-) containing groups' and 'peak at 475' for organic sulfur removal.”
Xu 等 - 2020 - Experimental Study on Organic Sulfur Removal in Bi DOI: 10.1021/acsomega.0c02795
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