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首页> 外文期刊>Журнал аналитической химии >Solvation properties of hexyl (p-trifluoroacetyl)benzoate and its analogues in anion-exchange extraction systems
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Solvation properties of hexyl (p-trifluoroacetyl)benzoate and its analogues in anion-exchange extraction systems

机译:(对三氟乙酰基)苯甲酸己酯及其类似物在阴离子交换萃取体系中的溶剂化性能

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摘要

Solvation properties of hexyl (p-trifluoroacetyl)benzoate and its analogues were investigated m the TNODA~+DNP~-/A~(z-) extraction system, where TNODA~+DNP~- is trinonyloctadecylammonium 2,4-dinitrophenolate, and A~(z-) is the anion to be extracted. Solvation numbers and constants were calculated for a series of anions. Quantum-chemical calculations of internuclear distances and atomic charges of p-trifluoroacetyl derivatives were carried out. The hypothesis was formulated that the mechanism of anion solvation by molecules of hexyl (p-trifluoroacetyl)benzoate involves the formation of hydrogen bonds between hydrogen atoms of the benzene ring of hexyl (p-trifluoroacetyl)benzoate and oxygen atoms of solvated anions.
机译:在TNODA〜+ DNP〜-/ A〜(z-)萃取系统中研究了对(三氟乙酰基)苯甲酸己酯及其类似物的溶剂化性质,其中TNODA〜+ DNP〜-是三壬基十八烷基lam 2,4-二硝基苯酚盐,A 〜(z-)是要提取的阴离子。计算了一系列阴离子的溶剂化数和常数。对三氟乙酰基衍生物的核间距和原子电荷进行了量子化学计算。提出了这样的假设:(对-三氟乙酰基)苯甲酸己基酯分子对阴离子的溶剂化机理涉及在(对-三氟乙酰基)苯甲酸己酯的苯环的氢原子与溶剂化阴离子的氧原子之间形成氢键。

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