Here we will investigate the various silicate structures to study how the silica
ID: 512066 • Letter: H
Question
Here we will investigate the various silicate structures to study how the silica polymerization controls the properties of these compounds. 1. Quartz (Si02): Type 'quartz' in the search menu of molview to obtain the 3-D structure. Now go to Model tab and select Jmol as the engine. Now select Model tab again and choose 2 times 2 times 2 supercell. Orient the model to view in z-y plane with X-axis towards you (you should get the following image). How many silicon is an oxygen atom bonded with? __ How many oxygen is each silicon bonded with? __ Take a close look at the SiO4 tetrahedron shaped cluster. Each has four corners. How many corners are bonded with other Si04 tetrahedrons? __. What are the SiO4 tetrahedron bonded to in each corners? __Explanation / Answer
two silicon was bonded to each oxygen atom
four oxygen was bonded to each silicon atom
four corners are bond to other SiO4 units
oxygen of the SiO4 tetrahedron bonded to in each corner