Figure 1.
NQBS chemical structure
(A and B) (A) General synthetic pathways for the preparation of NQBS; (B) chemical structure of representative compounds (CU-O42, CU-O47, CU-O75, and CU-O102)
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.