Journal
JOURNAL OF PHYSICAL CHEMISTRY A
Volume 109, Issue 5, Pages 767-772Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp046004y
Keywords
-
Ask authors/readers for more resources
The rotationally resolved S-1 <-- S-0 electronic spectrum of the water complex of p-difluorobenzene (pDFB) has been observed in the collision-free environment of a molecular beam. Analyses of these data show that water forms a planar a-bonded complex with pDFB via two points of attachment, a stronger F --- H-O hydrogen bond and weaker H --- O-H hydrogen bond, involving an ortho hydrogen atom of the ring. Despite the apparent rigidity of this structure, the water molecule also is observed to move within the complex, leading to a splitting of the spectrum into two tunneling subbands. Analyses of these data show that this motion is a combined inversion-internal rotation of the attached water, analogous to the acceptor-switching motion in the water dimer. The barriers to this motion are significantly different in the two electronic states owing to changes in the relative strengths of the two hydrogen bonds that hold the complex together.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available