Linear Electron Geometries (AX2)
Molecules in this category may have three atoms. The case where one of the
groups is a non-bonding electron group (e.g. AXE configuration) falls in the
diatomic category with any number of non-bonding electron groups.
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Example AX2 Molecules (linear)
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Molecular Viewer (JSmol) Help
When you select a molecule you will see a rotating image of the molecule displayed using the 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. On a touchpad two finger drag-up zooms in. Many more options in the right-click menu The right-click menu can also be activated by clicking on the JSmol icon at the lower right of the viewer.
Additional instructions for the viewer.
If your browser is not Javascript capable you can still download the molecule files readable by Jmol and then use Jmol to view the files. See the tutorial introduction for more information.
Reference and Technical Info
* Measured geometry (from spectroscopic measurements) sourced from:
The NIST Computational Chemistry Comparison and Benchmark Database
NIST Standard Reference Database Number 101
Release 22, May 2022, Editor: Russell D. Johnson III
https://cccbdb.nist.gov/
Other geometries are based on estimates from quantum computations.
Last Update: July 25, 2026
Expires: --
J. Gutow
Expires: --
J. Gutow