AX6 AX5E and AX4E2 Examples

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AX₆, AX₅E and AX₄E₂ Configurations

Molecules in this category may have five, six or seven atoms. The configuration is specified as AX₆ for the case with seven total atoms, AX₅E for the case with six atoms and AX₄E₂for the case with five atoms. Remember the "E" represents electron groups that are not involved in bonding, the "X" atoms around the central atom and the "A" is the central atom. Molecules of the type AX₆are octahedral, molecules of the type AX₅E are square-pyramidal and molecules of the type AX₄E₂ are square-planar.

**Example AX₆ Molecules (Octahedral)**
Formula	Lewis Structure	Live 3-D view	Download for Jmol/Rasmol
SF₆			SF6.pdb
TeF₆			TeF6.pdb
[AlCl₆]^3-			AlCl6(minus3).pdb

**Example AX₅E Molecules (Square-pyramidal)**
Formula	Lewis Structure	Live 3-D view	Download for Jmol/Rasmol
BrF₅			BrF5.pdb

**Example AX₄E₂(Square-planar)**
Formula	Lewis Structure	Live 3-D view	Download for Jmol/Rasmol
XeF₄			XeF4.pdb
ClF₄^-			ClF4(minus1).pdb

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 capable you can still download the molecule files readable by Jmol by clicking on the link and then use Jmol to view the files. See the tutorial introduction for more information.