MolDraw › Templates › Resonance › Ozone
ResonancePremium
Ozone template
Premium template. Preview and edit it free in MolDraw; downloading and exporting it is part of MolDraw Pro.
O₃: ⁻O–O⁺=O ↔ O=O⁺–O⁻, two equivalent forms; the molecule is bent with two equal O–O bonds.
What the template shows
- Two equivalent contributors with a positive central oxygen
- Resonance contributors
- Two equivalent forms
- Both O–O bonds are the same length (128 pm), between O–O (148 pm) and O=O (121 pm).
- The central oxygen has a lone pair, so the molecule is bent (117°) and has a small dipole moment.
- Each terminal oxygen carries half a negative charge; ozone adds across C=C as a 1,3-dipole (ozonolysis).
- Contributors are not in equilibrium: the real species is one hybrid of them · every part of this figure is editable
Drawn with 6 atoms, 3 arrows, 2 shapes – every one editable in MolDraw.
Sources
How to use this template
- Press Edit in MolDraw. The template opens on the canvas of the free MolDraw editor.
- Change anything: move structures, edit atoms and labels, recolour highlights or delete what you do not need.
- Add your own structures, arrows and text next to it, or combine several templates on one page.
- Export the drawing as PNG, SVG or PDF for slides, worksheets, theses and papers.
Frequently asked questions
Is the Ozone template free?
You can preview the Ozone 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 Ozone 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.
How are resonance structures shown?
Each contributor is drawn separately, joined by double-headed resonance arrows, with curly arrows showing how the electrons move from one contributor to the next.