Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 138, Issue 24, Pages 7460-7463Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b02856
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Funding
- NSERC (Canada)
- EPSRC (U.K.)
- EPSRC [EP/F03055X/1, EP/H022651/1, EP/L017911/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/F03055X/1, EP/H022651/1, EP/L017911/1] Funding Source: researchfish
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Experiments have been carried out in which electrospray ionization has been used to generate ionic complexes of all-cis 1,2,3,4,5,6 hexafluorocyclohexane. These complexes were subsequently mass isolated in a quadrupole ion trap mass spectrometer and then irradiated by the tunable infrared output of a free electron laser in the 800-1600 cm(-1) range. From the frequency dependence of the fragmentation of the complexes, vibrational signatures of the complexes were obtained. Computational work carried out in parallel reveals that the complexes formed are very strongly bound and are among the most strongly bound complexes of Na+ and Cl- ever observed with molecular species. The dipole moment calculated for the heaxafluorocyclohexane is very large (similar to 7 D), and it appears that the bonding in each of the complexes has a significant electrostatic contribution.
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