Microsolvation of the acetate anion [CH3CO2-(H2O)n, n=1-3]: A photoelectron spectroscopy and ab initio computational study

被引:17
作者
Wang, Xue-Bin [1 ,2 ]
Jagoda-Cwiklik, Barbara [3 ]
Chi, Chaoxian [4 ]
Xing, Xiao-Peng [1 ,2 ]
Zhou, Mingfei [4 ]
Jungwirth, Pavel [5 ]
Wang, Lai-Sheng [1 ,2 ]
机构
[1] Washington State Univ, Dept Phys, Richland, WA 99354 USA
[2] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA
[3] Hebrew Univ Jerusalem, Fritz Haber Inst Mol Dynam, IL-91904 Jerusalem, Israel
[4] Fudan Univ, Dept Chem, Shanghai Key Lab Mol Catalysts & Innovat Mat, Adv Mat Lab, Shanghai 200433, Peoples R China
[5] Acad Sci Czech Republic, Inst Organ Chem & Biochem, Ctr Complex Mol Syst & Biomol, CR-16610 Prague 6, Czech Republic
基金
中国国家自然科学基金;
关键词
DOUBLY-CHARGED ANION; WATER CLUSTERS; GAS-PHASE; DYNAMICS; SOLVATION; PHOTODETACHMENT; CHEMISTRY; DIANIONS; DISSOCIATION; DISSOLUTION;
D O I
10.1016/j.cplett.2009.06.074
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
A combined photoelectron spectroscopy and ab initio theoretical study was carried out to study the microsolvation of the acetate anion. Photoelectron spectra of cold solvated clusters CH3CO2-(H2O)(n) (n = 1-3) at 12 K were obtained and compared with theoretical calculations. The first water is shown to bind to the -CO2- group in a bidentate fashion, whereas both water-water and water-CO2- interactions are shown for n = 2 and 3. Significant rearrangement of the solvation structures is observed upon electron detachment, and water-CH3 interactions are present for all the neutral clusters, CH3CO2( H2O)(n) (n = 1-3). (c) 2009 Elsevier B. V. All rights reserved.
引用
收藏
页码:41 / 44
页数:4
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