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Appendix 1: Downloading the A vogadro Software Package to a Personal Computer
The Avogadro software package is freely available for the Mac, Linux, and Windows platforms. If you would like to
download Avogadro for personal use, go to this web site:
Click on the link that says "Get Avogadro". The site should automatically detect your operating system and provide
the appropriate version of Avogadro, so make sure to download it from a computer using the same operating system
on which you wish to install the package. Appendix 2 : B uilding S imple O rganic M olecules w ith A vogadro
To demonstrate how to build simple organic molecules, n-butane will be used as an example. When you start the
Avogadro software package, you should see a window similar to the one shown in Figure A1 on your screen. Figure A1. The main A vogadro window. The Avogadro window that you see may have a black background. If you would like to change the background
color, you may do so by selecting "View → Set Background Color. " In addition, if the "Settings" area on the left
side of the window does not appear, you may toggle it on by clicking on the "Tool Settings" button.
To construct an initial structure for the n-butane molecule, click on the Drawing Tool,
. Set the Element to
Carbon, Bond Order to Single, and make sure that "Adjust Hydrogens" is NOT selected. Then, click with the left
mouse button in the Avogadro window and a single carbon atom should be displayed.
Next, click three additional times in the window to place three more carbon atoms in an arrangement that resembles
the carbon backbone of the anti form of n-butane, as illustrated in Figure A2.
NOTE: if you make a mistake during the building process, you can erase it by using keyboard sequence Cmd-Z on
Macintosh (or Ctrl-Z on Windows). 5 Figure A2. Constructing the carbon backbone of the n -butane molecule. The next step is to...
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This document was uploaded on 03/04/2014 for the course CHEM 380.37 at Illinois State.
- Fall '13