---
title: "IR key absorptions Template – Chemistry Diagram | MolDraw"
url: https://www.moldraw.com/templates/spectro-ir-key-absorptions/
description: "IR key absorptions template: IR correlation table: O–H (alcohol, acid), N–H, C–H (sp, sp², sp³, aldehyde), C≡N, C≡C, C=O (acid chloride, ester…"
lang: en
publisher: Scidart Academy
generated: 2026-10-28
---
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# IR key absorptions template

![IR key absorptions template: IR correlation table: O–H (alcohol, acid), N–H, C–H (sp, sp², sp³, aldehyde), C≡N, C≡C, C=O (acid chloride, ester, ketone/aldehyde, acid, amide), C=C, aromatic C=C, NO₂ and C–O, with wavenumbers, band shape and a position bar.](https://www.moldraw.com/templates/spectro-ir-key-absorptions.webp)

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IR correlation table: O–H (alcohol, acid), N–H, C–H (sp, sp², sp³, aldehyde), C≡N, C≡C, C=O (acid chloride, ester, ketone/aldehyde, acid, amide), C=C, aromatic C=C, NO₂ and C–O, with wavenumbers, band shape and a position bar.

## What the template shows

- Typical stretching wavenumbers of the common functional groups, each placed on the 4000 → 400 cm⁻¹ scale
- Correlation table
- O–H alcohol, phenol
- strong, broad (H-bonded)
- O–H carboxylic acid
- very broad, over C–H
- N–H amine, amide
- medium; NH₂ gives two bands
- strong, sharp
- =C–H alkene, arene
- medium (just above 3000)
- strong (just below 3000)
- two weak bands
- medium, sharp
- weak (absent if symmetric)
- C=O acid chloride
- C=O aldehyde, ketone
- strong (conjugated: ~1685)
- C=O carboxylic acid
- variable, often weak
- C=C aromatic ring
- medium, several bands
- two strong bands
- C–O alcohol, ether, ester

Drawn with 6 atoms, 34 shapes – every one editable in MolDraw.

## Sources

- [Pavia, Lampman, Kriz & Vyvyan, Introduction to Spectroscopy, 5th ed., Cengage 2015, ch. 2](https://openlibrary.org/isbn/9781285460123) Textbook
- [Silverstein, Webster, Kiemle & Bryce, Spectrometric Identification of Organic Compounds, 8th ed., Wiley 2014](https://openlibrary.org/isbn/9780470616376) Textbook

## How to use this template

1. Press **Edit in MolDraw**. The template opens on the canvas of the free MolDraw editor.
2. Change anything: move structures, edit atoms and labels, recolour highlights or delete what you do not need.
3. Add your own structures, arrows and text next to it, or combine several templates on one page.
4. Export the drawing as PNG, SVG or PDF for slides, worksheets, theses and papers.

## Frequently asked questions

### Is the IR key absorptions template free?

You can preview the IR key absorptions template here and open and edit it in MolDraw for free. Downloading or exporting it is part of MolDraw Pro, together with the other premium templates.

### Can I edit the IR key absorptions template?

Yes. It opens as an ordinary MolDraw drawing, so every structure, arrow, label and colour can be changed, and you can add your own content around it.

### Is the chemistry checked?

Every structure is checked with RDKit and every curly arrow passes MolDraw’s electron-flow audit. The sources used are listed on this page.

### Are the spectra real data?

The spectra are schematic, drawn to the standard chemical shifts, splitting patterns and absorptions given in textbooks, so they are clear for teaching and exam practice.

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