Measurement of the v8 intermolecular vibration of (D,O), by tunable far infrared laser spectroscopy
نویسندگان
چکیده
The first accurate measurement of an intermolecular vibration of the water dimer is reported. Five vibration-rotation-tunneling (VRT) bands of the perdeuterated isotope, located near 84 cm-’ , have been assigned to the A 1 /E/B, tunneling components of the K, = O-0 and K, = l-0 subbands. The vibration involves large amplitude motion of the hydrogen bond acceptor and is assigned as the vs acceptor wag. The spectra indicate strong coupling of both the donor-acceptor interconversion and donor tunneling motions to the excited vibrational coordinate. This measurement provides a benchmark for future efforts toward the determination of an accurate potential energy surface for the water dimer.
منابع مشابه
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