Figure 2.
Illustration of a conventional QM/MM periodical boundary system: yellow circles indicate the QM sub-systems while the shaded area q is the MM sub-system.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.