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.
Different views of the space-filling representation of the hexameric coordination capsule 2 showing the metal-directed self-assembly of 6 pyrogallol[4]arenes and 24 Cu(II) ions. Any axial copper-coordinated water molecules were removed for clarity. Yellow, copper; red, oxygen.
