Fig. 2. X-ray crystal structures of (a) 3b and (b) 4b (cations, solvent molecules and styryl H atoms omitted for clarity, 30% displacement ellipsoids).
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.