Figure 2.
General structure of calix[n]arene. X = CH2 or S and n = 4, 6, or 8 for the most representative of them.
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.