I received Fe2.00 from XRD result, I did some research but I could not find any website could explain what it is. How should I acknowledge such result?
The code reference is 96-900-2673.
I browsed http://www.crystallography.net/cod/search.html and it showed no result.
I have weak chemical background if there is anything of my acknowledgement is incorrect, please correct me.
Thank you for helping.
I think the reference you are interested in is [10] in this paper:
http://www.mjfas.utm.my/index.php/mjfas/article/viewFile/365/pdf_39
If you search the COD for journal: American Mineralogist and Vol: 87 you'll find the information on the structures presented in this paper.
@Dr. Jones
Thank you for the advice. What if I would Iike to know how Fe2.00 should be called?
Is the 2.00 representing the chemical formula that it's a kind of Fe with different structure?
Thanks again.
It was from COD (Crystallography Open Database) : http://www.crystallography.net/cod/
Because the structure is body centered cubic (Im-3m) than the position of Fe at 0,0,0 by symmetry wil create 2 atoms in the unit cell (1/8 x 8 corner atoms + 1 center). Fe2 might be the result from High Score Plus software.
I did not understand the original question, but Maykel Manawan gave me the explanation of the nomenclature Fe2.00, a notation that is not an acceptable one when describing crystal structures. I do not know that source, but this kind of writing is only bewildering! The figure 2.00 should rather be 2, i.e. an integer, because it tells you how many formula units (or the number of atoms) there are to the unit cell. Beware of such sources that are not very helpful for explaining crystallography! Elemental iron occurs normally in two modifications, either bcc (which Manawan described, having 2 atoms to the unit cell) or ccp (with 4 atoms to the cell). [The latter is often erroneously called fcc, but that is only telling you what the lattice type is, not the structure itself. The ccp structure is unique while there exist hundreds having a fcc lattice.]
I do not understand the link that Ray Jones refers to, since it deals with iron oxides (quite complicated to read for anyone not familiar with crystallographic nomenclature), and elemental iron is mentioned only in a table.
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