Scheme 11.
Synthesis of planar nonbenzenoid nanographene 67 with two 5–7 pairs. THF: tetrahydrofuran; TiCl4: titanium tetrachloride.[ 84 ]
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.