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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Raman spectroscopic study of silver nitrate solutions in acrylonitrile at different temperatures (238-343 K)
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Raman spectroscopic study of silver nitrate solutions in acrylonitrile at different temperatures (238-343 K)

机译：不同温度（238-343 K）下丙烯腈中硝酸银溶液的拉曼光谱研究

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摘要

The association between acrylonitrile (CH_2≡CH-CN) and Ag~+ ion has been studied by Raman spectroscopy. The region of the ν(CsN) fundamental, including the new feature attributed to cation-associated acrylonitrile, has been recorded over a temperature range 238 -343 K, with concentrations between 1.0 and 6.0 m silver ion (as silver nitrate), The wavenumber of the new band (2249 cm~(-1) displaced about + 20 cm~(-1) from the bulk solvent C≡N stretching) was independent of the concentiation. althougha small temperature effect was detected. The evolution of the associated acrylonitrile concentiation with temperature suggests a flimsy solvation sphere. The experimental results are interpreted in dynamic terms, assuming a general equilibrium between positively and negatively solvated silver ions.
机译：通过拉曼光谱研究了丙烯腈（CH_2 ＝ CH-CN）与Ag〜+离子的缔合。在238 -343 K的温度范围内，记录到ν（CsN）基本区域，包括归因于阳离子缔合的丙烯腈的新特征，其中银离子的浓度在1.0至6.0 m之间（作为硝酸银），波数新条带的距离（从本体溶剂C≡N延伸移出的2249 cm〜（-1）大约+ 20 cm〜（-1））与浓度无关。尽管检测到很小的温度影响。伴随的丙烯腈浓度随温度的变化表明存在脆弱的溶剂化球。假定正溶剂化的银离子和负溶剂化的银离子之间具有基本平衡，以动态术语解释实验结果。

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