Figure 7.
Photographs of (a) [2a][PF6]2, (b) [2a′][FSA]2, and (c) [2b][PF6]2 (polycrystals and single crystals) taken upon heating.
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.