کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1410700 1501893 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The syntheses of phenol-containing diazamacrocycles and liquid membrane transports of alkali cations
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
The syntheses of phenol-containing diazamacrocycles and liquid membrane transports of alkali cations
چکیده انگلیسی
Two new bisphenol-containing diazacrown ether derivatives, 7,16-bis(2-hydroxy-5-ethylbenzoatebenzyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (1) and 7,16-bis(2-hydroxy-3,4-dimethylbenzyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (2), have been synthesized via one-pot Mannich reaction. The compound 1 is structurally characterized. The liquid membrane transports of alkali metal cations using these two new diazamacrocycles and the other previously prepared diazamacrocyclic derivative 7,16-bis(3-hydroxy-6-methyl-2-pyridylmethyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (3) as ion-carriers are also studied. The results show that the rates of cation transports are closely related to the number of nitrogen donors and the steric effect of the substituted groups. Compared with other macrocyclic compounds, compound 1 shows a good selectivity for Li+, therefore providing a new efficient carrier for Li+ extraction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 846, Issues 1–3, 26 November 2007, Pages 23-27
نویسندگان
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