One-photon UV detrapping of the hydrated electron

被引：44

作者：

Son, DH ^{[1
]}

Kambhampati, P ^{[1
]}

Kee, TW ^{[1
]}

Barbara, PF ^{[1
]}

机构：

[1] Univ Texas, Dept Chem & Biochem, Austin, TX 78712 USA

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 342卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(01)00167-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Direct 1-photon excitation of the hydrated electron from the ground state to the conduction band is achieved with 400 nm excitation. This provides a unique method for investigating the femtosecond dynamics and spectroscopy of the conduction band hydrated electron without interference from other states. The assignment of the 400 nm excited state to the conduction band is supported by the observation of > 35 Angstrom spatial migration of the hydrated electron, as manifested in complete supression of geminate recombination. Similar dynamics and electron scavenging yields are observed for the 400 rim state and that produced by 2-photon 800 nm excitation. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：571 / 577

页数：7

共 28 条

[1] Femtosecond solvation dynamics of solvated electrons in neat water [J].