Скачать или смотреть CH3OCH3 Molecular Geometry, Bond Angles (Dimethyl ether)

An explanation of the molecular geometry for the CH3OCH3 (Dimethyl ether) including a description of the CH3OCH3 bond angles.

The ideal bond angle for the Dimethyl ether is 109.5° since it has a Bent molecular geometry. Experimentally we would expect the bond angle to be approximately 110.3°.

To determine the molecular geometry, or shape for a compound like CH3OCH3, we complete the following steps:

1) Draw the Lewis Structure for the compound.
2) Predict how the atoms and lone pairs will spread out when the repel each other.
3) Use a chart based on steric number (like the one in the video) or use the AXN notation to find the molecular shape. This will be determined by the number of atoms and lone pairs attached to the central atom.
If you are trying to find the electron geometry for CH3OCH3 we would expect it to be Tetrahedral.

Helpful Resources:

• How to Draw Lewis Structures:    • How to Draw Lewis Structures: Five Easy Steps  
• Molecular Geometry and VSEPR Explained:    • Molecular Geometry: Rules, Examples, and P...  
• Molecular Geo App: https://phet.colorado.edu/sims/html/m...
Get more chemistry help at http://www.breslyn.org

Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).