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.
(a) The molecular structure of Tan-IIA; (b) Stacking interactions in a step showing strong overlap for Tan-IIA. The step showed two benzene rings with a diketone group stacking interactions occurring with distances to the ring centroid of 3.396 Å. The pores viewed along the a axis (c), b axis (d) and c axis (e).
