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.
(a) View of the molecular structure of Ni-4 and (b) Cu-5 in the crystal. Hydrogen atoms have been omitted for clarity, thermal ellipsoids show 50% probability [197]. See the main text for more discussion on the properties of these compounds. (CCDC number: 1047912 (a) and 1047911 (b) [183]).
