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Dr. Gutow's Molecular Shapes Web Site
Introduction The Model (VSEPR) Examples
If your browser is Java capable you will get snappier performance if you use Java.
Triatomics (AX2 Configuration)
Molecules in this category are all triatomics (molecules containing three atoms). There are only two electron groups around the central atom. Both electron groups are bonds to the outer atoms. The configuration is specified as AX2, where A represents the central atom and each X represents one of the other atoms.
FormulaLewis StructureLive 3-D viewDownload for Jmol/Rasmol
Molecular Viewer Instructions
Brief Instructions for Molecular Viewer
(The Open Source Applet JSmol/Jmol)

When you select a molecule you will see a rotating image of the molecule displayed above using the Jmol/JSmol applet.
Rotate the molecule Hold down the mouse button and drag the cursor over the image.
Zoom the view Hold down the shift key and the mouse button while dragging up or down over the image
Start/stop automatic spin Right-click over the image and select "on" or "off" from the "Spin" submenu. On a single button mouse try holding the <option>, <ctrl> or <cmd> keys down while holding the mouse button.

Additional instructions for the viewer.

•If your browser is not Javascript or Java capable you can still download the molecule files readable by Jmol or Rasmol by clicking on the link and then use Jmol or Rasmol to view the files.  See the tutorial introduction for more information.
Last Update: November 17, 2016
by J. Gutow
Expires: --