The interaction of cations and liquid water studied by resonant soft-X-ray absorption and emission spectroscopy

被引:16
作者
Guo, JH [1 ]
Augustsson, A
Kashtanov, S
Spångberg, D
Nordgren, J
Hermansson, K
Luo, Y
Augustsson, A
机构
[1] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA USA
[2] Uppsala Univ, Dept Phys, S-75121 Uppsala, Sweden
[3] Royal Inst Technol, S-10044 Stockholm, Sweden
[4] Uppsala Univ, Dept Chem Mat, S-75121 Uppsala, Sweden
关键词
X-ray absorption and emission spectroscopy; ion solvation; liquid water;
D O I
10.1016/j.elspec.2005.01.239
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
We report the soft-X-ray absorption and emission studies of NaCl, MgCl2, and AlCl3 in water solutions. The influences of cations on the water molecular structure can be seen as the absorption threshold edge shifted to high energy in the X-ray absorption spectra; the mixing of molecular orbital in 3a(1) symmetry is reinforced as the intensity of 3a(1) is further reduced; and the 1b(1)-emission peak shows the broadening and shift differently for Na+, Mg2+, and Al3+ water solutions, which indicates that the charge difference of the cations may not be the only playing role being responsible to the interactions between the cations and water molecules. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:287 / 290
页数:4
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