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Procedure:
Part I: Ethylene
 First, we are going to create the zmatrix for ethylene. Below are three
pictures of an ethylene molecule. In the second picture, notice how all the
atoms are on the same plane. The third picture is a diagram with the symbols
of the atoms in the molecule.
 Using these diagrams and the reference charts above, construct the
zmatrix for the ethylene molecule.
 Now use the ZMatrix to Cartesian Coordinate Conversion Pageat http://www.shodor.org/chemviz/zmatrices/babel.html
to convert your zmatrix to cartesian coordinates.
Part II: Propene
 Next, we will create the zmatrix for propene. Once again, you are
permitted to use the above reference charts and the following diagrams.
 Again, convert your zmatrix to cartesian coordinates. http://www.shodor.org/chemviz/zmatrices/babel.html
Part III: 1,2Difluro1,2difluro1,2dichloroethane
 Finally, we will look at 1,2difluro1,2dichloroethane. As in the
previous examples, use the reference charts and following diagrams.
 Convert your zmatrix to cartesian coordinates. http://www.shodor.org/chemviz/babel.html
