Fig. 2. Molecular structures obtained by X-ray diffraction of macrocycles 2 (left) and 3 (right). Hydrogen atoms, disorder and solvent molecules are omitted for clarity.
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.