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.
Different scales for the Lewis acidity for cations 2 and 9 and related compounds. a) Scale based on 19F NMR chemical shifts of nitrilium ions 10 and 11. b) Scale based on 1 J(CF) coupling constants of nitrilium ions 10 and 11. c) Scale based on fluoride ion affinities (FIA) calculated for cations 2 and 9 at SCIPM/M06‐2X/Def2‐TZVP for methylene chloride solution by using reaction (1) in Scheme 2.
