Structure-alkali metal cation complexation relationships for macrocyclic PNP-lariat ether ligands

被引：19

作者：

Bartsch, RA ^{[1
]}

Lee, EK

Chun, SK

Elkarim, N

Brandt, K

Porwolik-Czomperlik, I

Siwy, M

Lach, D

Silberring, J

机构：

[1] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA

[2] Korea Univ, Dept Chem, Seoul 136701, South Korea

[3] Polish Acad Sci, Inst Polymer Chem, PL-41819 Zabrze, Poland

[4] Pedag Univ, Inst Chem & Environm Protect, PL-42201 Czestochowa, Poland

[5] Jagiellonian Univ, Fac Chem, PL-30060 Krakow, Poland

[6] Jagiellonian Univ, Reg Lab, PL-30060 Krakow, Poland

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 2002年 / 03期

关键词：

D O I：

10.1039/b110415b

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Water-insoluble, mono- and diarmed PNP-lariat ethers containing various aryloxy and regioisomerically-positioned binaphthylylenedioxy substituents linked to the phosphorus atoms of the cyclophosphazene ring via oxygen atoms are synthesized by regioselective, sodium ion-assisted arylolysis of tetrachloro-16-PNP-6 crown ether 1. Heterogeneously-substituted, mixed aryloxy-amino PNP-lariat ethers and bis-lariat ethers with two different substituents linked to the PNP-macrocycle via an oxygen and a nitrogen atom are prepared by stepwise arylolysis and aminolysis reactions of 1. The alkali-metal cation complexation behavior of the PNP-lariat ethers is evaluated in solvent polymeric membrane electrodes. The PNP-lariat and bis-lariat ethers exhibit pronounced selectivity for large alkali metal cations (Rb+ and Cs+) over small ones (Li+ and Na+). The selectivity is influenced by the configuration of the crown ether ring and the number of oxygen donor atoms in the ligand. For some PNP-lariat ethers, evidence for formation of 2 : 1 (ligand-metal ion) complexes with Rb+ and Cs+ is provided by ESI-MS.

引用

页码：442 / 448

页数：7

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