Femtosecond probing of nuclear motion in an alkali halide (NaI) reaction reveals a persistent wave packet, recurring at long times up to 40 ps. The detection of both "free" Na atoms and "transient" [Na...I] \* l indicates non-exponential dynamics through the crossing zone of the covalent and ionic p
โฆ LIBER โฆ
Femtosecond reaction dynamics in macroclusters. Effect of solvation on wave-packet motion
โ Scribed by E.D. Potter; Q. Liu; A.H. Zewail
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 935 KB
- Volume
- 200
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The dynamics of I2 dissociation and recombination (caging) in a macrocluster are reported, covering the femtosecond to picosecond time domain. Both the exit-channel and recombination dynamics are observed and related to solute-solvent interactions, The dissociation involves bond breakage on bound/repulsive potentials with concomitant evaporation of the solvent shell. The caging is accompanied by relaxation of the system and/or diffusion of the free iodine atoms prior to reforming the Is bond. Molecular dynamics are used to compare with experiments.
๐ SIMILAR VOLUMES
Femtosecond probing of persistent wave p
โ
P. Cong; A. Mokhtari; A.H. Zewail
๐
Article
๐
1990
๐
Elsevier Science
๐
English
โ 449 KB