Bimodal dependence of light scattering/fluctuations on the concentration of aqueous solutions

被引：5
|
作者：
Pershin, S. M. [1 ]
Bunkin, A. F. [1 ]
Grishin, M. Ya. [1 ]
Lednev, V. N. [1 ]
Fedorov, A. N. [1 ]
Palmina, N. P. [2 ]
机构：
[1] Russian Acad Sci, Prokhorov Gen Phys Inst, Ul Vavilova 38, Moscow 119991, Russia
[2] Russian Acad Sci, Emanuel Inst Biochem Phys, Ul Kosygina 4, Moscow 119991, Russia
来源：
PHYSICS OF WAVE PHENOMENA | 2016年 / 24卷 / 01期
关键词：
STRUCTURAL TRANSITIONS; SPIN-ISOMERS; WATER; SPECTROSCOPY; PHENOSAN; FJORDS; SALT; ICE;
D O I：
10.3103/S1541308X1601009X
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Two concentration ranges (from 10(-5) to 10(-9) and from 10(-13) to 10(-18) M) corresponding to enhanced fluctuations of Rayleigh and Raman scattering of second-harmonic (527 nm) pulses of YVO4:Nd3+ laser are found for aqueous solutions of antioxidant potassium phenosan. A correlation is revealed between the rise in elastic Rayleigh scattering intensity and its fluctuations and the shift of the center of OH Raman band of water toward the ice component characteristic frequency (3200 cm(-1)). The development of phase-equilibrium instabilities is analyzed based on the model of fluctuations of the number of hydrogen bonds on the assumption of formation/destruction of ordered hydration layer of phenosan molecules in water.
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页码：41 / 47
页数：7
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