A Is there anyone who can explain Strukturbericht symbol?

Tags:
1. Dec 12, 2016

gaus12777

I have found about Strukturbericht and got some information.
But I dont know what these number means.
I heard that Mn_5Ge_3 is a D8_8 type structure.
I already found that D means A_m B_n compound. But I cant find anywhere what the number mean.

2. Dec 12, 2016