TY - JOUR
T1 - Vibrational energy relaxation pathways of water
AU - Pakoulev, Andrei
AU - Wang, Zhaohui
AU - Pang, Yoonsoo
AU - Dlott, Dana D.
N1 - Funding Information:
This material is based on work supported by the National Science Foundation under award number DMR-0096466, by Air Force Office of Scientific Research contract F49620-03-1-0032, and by Army Research Office contract DAAD19-00-1-0036.
PY - 2003/10/21
Y1 - 2003/10/21
N2 - Vibrational energy relaxation (VR) of the OH stretch νOH and bend δH2O in water is studied by the mid-IR pump with anti-Stokes Raman probe technique. The broad νOH band in water consists of two inhomogeneously broadened subbands. VR in the larger red-shifted subband νOHR, with T1=0.55 ps, is shown to occur by the mechanism νOH→δH2O (1/3) and νOH→ground state (2/3). VR in the smaller longer-lived blue-shifted subband νOHB, with T 1=0.75 ps, occurs by the mechanism νOH→ground state. The bending fundamental δH2O decays directly to the ground state with T1=1.4 ps.
AB - Vibrational energy relaxation (VR) of the OH stretch νOH and bend δH2O in water is studied by the mid-IR pump with anti-Stokes Raman probe technique. The broad νOH band in water consists of two inhomogeneously broadened subbands. VR in the larger red-shifted subband νOHR, with T1=0.55 ps, is shown to occur by the mechanism νOH→δH2O (1/3) and νOH→ground state (2/3). VR in the smaller longer-lived blue-shifted subband νOHB, with T 1=0.75 ps, occurs by the mechanism νOH→ground state. The bending fundamental δH2O decays directly to the ground state with T1=1.4 ps.
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U2 - 10.1016/j.cplett.2003.09.002
DO - 10.1016/j.cplett.2003.09.002
M3 - Article
AN - SCOPUS:0142106447
VL - 380
SP - 404
EP - 410
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 3-4
ER -