Z-Matrix Lab Procedure:

Z-Matrices

Students

Procedure:

Part I: Ethylene

1. First, we are going to create the z-matrix 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.

2. Using these diagrams and the reference charts above, construct the z-matrix for the ethylene molecule.
3. Now use the Z-Matrix to Cartesian Coordinate Conversion Pageat http://www.shodor.org/chemviz/zmatrices/babel.html to convert your z-matrix to cartesian coordinates.

Part II: Propene

1. Next, we will create the z-matrix for propene. Once again, you are permitted to use the above reference charts and the following diagrams.
2. Again, convert your z-matrix to cartesian coordinates. http://www.shodor.org/chemviz/zmatrices/babel.html

Part III: 1,2-Difluro-1,2-difluro-1,2-dichloroethane

1. Finally, we will look at 1,2-difluro-1,2-dichloroethane. As in the previous examples, use the reference charts and following diagrams.

2. Convert your z-matrix to cartesian coordinates. http://www.shodor.org/chemviz/babel.html