𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Vibrational substructure in the OH stretching band of water

✍ Scribed by Zhaohui Wang; Andrei Pakoulev; Yoonsoo Pang; Dana D. Dlott

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
221 KB
Volume
378
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

Spectral diffusion in the OH stretching (m OH ) band of water is studied by ultrafast IR-Raman spectroscopy. The m OH transition consists of two overlapping inhomogeneously broadened subbands, a broader ($500 cm Γ€1 ) redshifted band and a smaller, narrower ($200 cm Γ€1 ) blueshifted band. The blueshifted band, which shows less spectral diffusion, has a longer lifetime (0.75 vs 0.55 ps) and a smaller vibrational frequency blueshift from the ground state (65 vs 90 cm Γ€1 ), is tentatively assigned to water molecules where one hydrogen atom has a broken hydrogen bond.

πŸ“œ SIMILAR VOLUMES

A molecular dynamics study of the OH str
A molecular dynamics study of the OH stretching vibrational spectrum of liquid water
✍ R. Bansil; T. Berger; K. Toukan; M.A. Ricci; S.H. Chen πŸ“‚ Article πŸ“… 1986 πŸ› Elsevier Science 🌐 English βš– 706 KB

A classical molecular dynamics (CMD) study has been carried out to investigate the OH stretching spectrum of liquid water. The potential used is the simple point charge model modified to include anharmonic vibrational potentials. A series of CMD runs were made for a system of 100 water molecules. Sp

Population lifetimes of the OH stretchin
Population lifetimes of the OH stretching band of water molecules on zeolite surfaces
✍ T. Fujino; M. Kashitani; K. Fukuyama; J. Kubota; J.N. Kondo; A. Wada; K. Domen; πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 367 KB

The population lifetimes of the OH stretching mode of a water molecule hydrogen-bonded to the Bronsted acidic hydroxyl groups in a mordenite-type zeolite have been measured at various temperatures using an infrared picosecond pump-probe technique. An extraordinary temperature dependence has been obs