Acetic Acid

Jim Holler
Department of Chemistry
University of Kentucky

Email Jim

UK Home Page
Molecular Models for CHE 105

Molecular Models

Visualizing molecules takes some practice, and it is useful to be able to see them and manipulate them in three dimensions. The models on this page may be viewed with the Chime plugin for Netscape and Internet Explorer. You may download the free plugin by clicking here. Download either Chime 1.02 or Chime 2.0 beta, install it according to the instructions on the MDL Web pages, and then view the molecules by simply clicking on the links below.

After each molecule loads into the Chime window, you may right-click on the molecule to change the format of the display. The default display mode is ball and stick, but wireframe, space filling, and other modes are available at the click of your mouse. For example, if you wish to display the molecule in space filling mode, right-click on the molecule, click on Display, and then click on Spacefill and then van der Waals Radii. At this point, you may click and drag on the molecule to rotate it in any direction. If you want to stop the automatic rotation, right-click on the molecule, and then click on Rotate. There are various other settings that you can select by right-clicking on the molecule as well. If a molecule fails to appear in the Chime window, right click in the center of the window, and change the display mode to Ball & Stick. To zoom in or out, hold down the Shift key, and drag the mouse down or up. Unfortunately, the molecular renderings do not work as automatically in Internet Explorer as they do in Netscape. You will have to adjust most of the settings yourself in Internet Explorer.

Note that lone pairs of electrons do not show in the models.

Sources of many other interesting molecules may be found at Library of 3-D Molecular Structures or at Molecules of the Month.

I hope you find these molecules interesting and useful. I will try to add more as time and interest dictates.

VSEPR

  • Triiodide Ion I3-
  • Boron Trifluoride BF3
  • Iodine Trichloride ICl3
  • Ammonia NH3
  • Methane CH4
  • Water H2O
  • Carbon Dioxide CO2
  • Nitrosyl Chloride ClNO
  • Methylene Chloride CH2Cl2
  • cis-Dichloroethylene cis-C2H2Cl2
  • trans-Dichloroethylene trans-C2H2Cl2
  • Iodine Pentafluoride IF5
  • Phosphorus Pentafluoride PF5
  • Sulfur Tetrafluoride SF4
  • Xenon Tetrafluoride XeF4
  • Sulfur Hexafluoride SF6
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