Figure 1.
Structures of 1–6 with key parameters at the B3LYP/6-311++g(3df,3pd) level of theory.
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.