Molecular beam rotational spectrum of cyclobutanone-trifluoromethane: nature of weak CH...O=C and CH...F hydrogen bonds.
The molecular beam Fourier transform microwave spectrum of cyclobutanone-trifluoromethane has been assigned and measured. The carbon atom of trifluoromethane lies in the plane of the heavy atoms of cyclobutanone. The complex is stabilized by one C-H...O=C and two C-H...F-C weak hydrogen bonds. The C-H...O=C interaction, involving one carbonylic oxygen, is studied for the first time in detail with rotationally resolved spectroscopy. The two C-H...F-C weak hydrogen bonds involve two fluorine atoms of trifluoromethane and two hydrogens of the same methylenic group in the alpha position.
Ottaviani
Paolo
P
Dipartimento di Chimica G. Ciamician dell' Università, Bologna, Italy.
Caminati
Walther
W
Favero
L B
LB
Blanco
Susana
S
López
Juan C
JC
Alonso
José L
JL
D005617:Chlorofluorocarbons, Methane / Q000737:chemistry*; D003503:Cyclobutanes / Q000737:chemistry*; D006860:Hydrogen Bonding; D017550:Spectroscopy, Fourier Transform Infrared
D005617:Chlorofluorocarbons, Methane; D003503:Cyclobutanes; C009554:fluoroform