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.
Shape complexity of compounds from three sources. Complexity is expressed as the proportion of sp2- or sp3-hybridized carbon atoms that are sp3-hybridized (Csp3/[Csp2 + Csp3]); (A) whole molecules, (B) “scaffold” atoms in the molecular framework only.
