Coursework read the “Crystal Structure Visualizations in three dimensions with support from the open access nanocrystallography database” J. Mater. Educ. 28(1), 87-95 (2006) by P. Moeck et al.
read that paper and answer the following questions on its basis, your actual working with the database, and from what you have learned in class.
1. What does the acronym CIF for?
2. How many entries are currently in the COD? (Check out their website for an actual number, our paper is a couple of month old.)
3. What are the lattice parameters of NaCl?
4. How many formulae units are in the conventional unit cell ?
5. How many atoms are in the conventional unit cell?
6. Provide a screenshot of the conventional NaCl unit cell along the [100] direction.
7. Provide a screeshot of NaCl unit cell along the [110] direction.
8. Provide a screenshot of the conventional NaCl cell along the [111] direction.
9. What are the positions of the Na and Cl atom in the so called asymmetric unit?
10. Provide a screenshot of the conventional cell of FeO along the [111] direction, what are the similarities and differences to the conventional cell of NaCl?
Two points each, have some fun.