Volume 21, Issue 9 pp. 1178-1182
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Synthesis and crystal structure of a new armed-tetraazacrown ether and its liquid membrane transport of alkali metal cations

Shu-Lan Ma

Shu-Lan Ma

Department of Chemistry, Beijing Normal University, Beijing 100875, China

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Wen-Xiang Zhu

Wen-Xiang Zhu

Department of Chemistry, Beijing Normal University, Beijing 100875, China

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Shu-Jing Dong

Shu-Jing Dong

Department of Chemistry, Beijing Normal University, Beijing 100875, China

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Qian-Ling Guo

Qian-Ling Guo

Department of Chemistry, Beijing Normal University, Beijing 100875, China

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Yuan-Bin She

Yuan-Bin She

Department of Applied Chemistry, Beijing Polytechnic University, Beijing 100022, China

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First published: 26 August 2010
Citations: 2

Abstract

A new tetra-N-substituted tetraazacrown ether derivative, 4,7, 13,16-tetra (2-cyanobenzyl)-1, 10-dioxa-4,7,13,16-tetraazacyclooctadecane, C44H48N8O2, has been synthesized and structurally characterized. It crystallizes in the monoclinic system, space group P21/c with a = 1.1176(3) nm, b =2.1906(7) nm, c = 0.8430(3) nm, V = 2.0132(10) nm3, β = 102.740(5)°, Z =4, Dc = 1.189 g/cm3, final R1, = 0.0460, wR2 = 0.0803. The liquid membrane transports of alkali metal cations using the new macrocycle as the ion-carrier were also studied. Compared with some macrocyclic ligands, our newly synthesized lig-and showed a good selectivity ratio for Na+/Li+.

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