What absorbs at 1102 cm⁻¹ in an FTIR spectrum?
A band near 1102 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 5 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Alkyl C-H | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
C c single bond confidence 1.0
“The C-C is k, Fii is the force constant evaluated by the damped least stretching modes are assigned to 1102, 1063, 1054, 996 and square technique, L is the normalized amplitude of the asik”
Samuel 和 Mohan - 2004 - FTIR and FT Raman spectra and analysis of poly(4-m DOI: 10.1016/S1386-1425(03)00212-9 -
Silicon (Si) confidence 1.0
“confirmed through the bands at 1102 and 1008 defined peaks characteristic of zeolite 4A with 2θ values cm-1 characterize Si-Othese bands located near 1000 at: 7.18º;”
Moreira 等 - 2018 - SYNTHESIS OF ZEOLITE 4A FOR OBTAINING ZEOLITE 5A B DOI: 10.1590/0104-6632.20180352s20160395 -
Hydroxyl (O-H) confidence 1.0
“The pluronic acid spectra showed peaks at 2127 cm-1, 1516 cm-1, and 1102 cm-1 due to -OH”
Nanocrystals of Mangiferin Using Design Expert: Preparation, Characterization, and Pharmacokinetic Evaluation DOI: 10.3390/molecules28155918 -
C-O single bond confidence 1.0
“LLM confirmed rule peak-group candidate”
Preparation and Optimization of PEGylated Nano Graphene Oxide-Based Delivery System for Drugs with Different Molecular Structures Using Design of Experiment (DoE) DOI: 10.3390/molecules26051457 -
Alkyl C-H confidence 1.0
“The band observed at 1102 is and -CH stretching group is due to the formation of a attributed to C(5)-C(6) and C(6)-O(6) stretching vibrations.”
Effect of new crystalline phase on the ionic conduction properties of sodium perchlorate salt doped carboxymethyl cellulose biopolymer electrolyte films DOI: 10.1007/s10965-021-02781-x
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