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.
Precursor molecule 1. (a) nc-AFM image of the two conformational isomers of 1 on Au(111) (T = 4 K; tip height corresponds to tunnel current set point Vs = 50 mV and I = 10 pA above Au(111)); (b) Schematic representation of trans conformation and (c) cis conformation. (d) Cyclization reaction: The precursor 1 can transform to the monomer 2 via two C1–C5 thermal enediyne cyclizations.
