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.
Difference in electron density upon excitation from the ground S0 state to the lowest-energy singlet excited state in both trans–trans, trans–cis, and cis–cis forms of 1–5. Green and magenta color shows the regions of increasing and decreasing and increasing electron density, respectively.
