1. Survey of the Elements: 1. Element structures 2. Oxide structures 3. Cool things about some elements

2. A brief review of Lewis Acids and Bases

3. Boron: Group 3A Boron Hydrides: B x H y Simplest is “diborane” B 2 H 6 Draw its Lewis structure Also called “boranes”

4. Bonding in diborane Reactions of diborane

5. Other boron hydrides

8. Metalloboranes and carboranes

9. Boron vs. Aluminum Halides Boron trichlorideAluminum trichloride Predict the structure of BeCl 2.

10. Boron Oxides

11. Some Cool Hydroxides LiOH Mg(OH) 2 B(OH) 3 Al(OH) 3

12. Some Cool Hydroxides LiOH Mg(OH) 2 B(OH) 3 Al(OH) 3

17. Boron Oxides

18. More Boron Oxides

19. Boron Nitride What is the Lewis structure similar to?

20. Industrial Production of Diamonds

22. Why is diamond formed, and not graphite? Reason 1. Reverse Reaction favors Graphite Instability H + diamond  CH4, but slower than CVD diamond growth H + graphite  CH4, but faster than CVD graphite growth Reason 2. Forward Reaction favors Diamond Formation sp 3 C atoms on surface (show structures) slow sp 2 graphite formation. H 2 (g)  2 H(g) H(g) + CH 4 (g)  CH 3 (g) + H 2 (g) CH 3 + C(diamond-H, surface)  Diamond-CH 3 + H