Hydrogen bond dynamics probed with ultrafast infrared heterodyne-detected multidimensional vibrational stimulated echoes.
Hydrogen bond dynamics are explicated with exceptional detail using multidimensional infrared vibrational echo correlation spectroscopy with full phase information. Probing the hydroxyl stretch of methanol-OD oligomers in CCl4, the dynamics of the evolving hydrogen bonded network are measured with ultrashort (<50 fs) pulses. The data along with detailed model calculations demonstrate that vibrational relaxation leads to selective hydrogen bond breaking on the red side of the spectrum (strongest hydrogen bonds) and the production of singly hydrogen bonded photoproducts.
Asbury
John B
JB
Department of Chemistry, Stanford University, Stanford, California 94305, USA.
Steinel
Tobias
T
Stromberg
C
C
Gaffney
K J
KJ
Piletic
I R
IR
Goun
Alexi
A
Fayer
M D
MD
D003903:Deuterium; D006860:Hydrogen Bonding; D000432:Methanol / Q000737:chemistry; D013055:Spectrophotometry, Infrared / Q000379:methods*; D014867:Water / Q000737:chemistry
D014867:Water; D003903:Deuterium; D000432:Methanol