Effect of aromatic ring fluorination on CH⋯π interactions: microwave spectrum and structure of the 1,2-difluorobenzene⋯acetylene dimer
Anuradha G. Akmeemana, Justin M. Kang, Rachel E. Dorris, Rebecca D. Nelson, Ashley M. Anderton, Rebecca A. Peebles · Physical Chemistry Chemical Physics · 2016
The H⋯π distance increases in
o
-C
6
H
4
F
2
⋯HCCH, compared to C
6
H
5
F⋯HCCH or C
6
H
6
⋯HCCH, consistent with weaker interactions with increased ring fluorination.
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