Towards promising oxoanion extractants:: azacages and open-chain counterparts

被引：64

作者：

Farrell, D ^{[1
]}

Gloe, K

Goretzki, G

McKee, V

Nelson, J

Nieuwenhuyzen, M

Pál, I

Stephan, H

Town, RM

Wichmann, K

机构：

[1] Queens Univ Belfast, Sch Chem, Belfast BT9 5AG, Antrim, North Ireland

[2] Tech Univ Dresden, Inst Anorgan Chem, D-01062 Dresden, Germany

[3] Loughborough Univ Technol, Dept Chem, Loughborough LE11 3TU, Leics, England

[4] Univ Ulster, Sch Biomed Sci, Coleraine BT52 1SA, Londonderry, North Ireland

[5] Rossendorf Inc, Forschungszentrum Rossendorf EV, Inst Bioanorgan & Radiopharmazeut Chem, D-01314 Dresden, Germany

来源：

DALTON TRANSACTIONS | 2003年 / 10期

关键词：

D O I：

10.1039/b210289g

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The efficiency of a series of amino-azacryptands for encapsulation and extraction of the oxoanions pertechnetate and perrhenate from aqueous solution is investigated and compared with that of their open-chain counterparts. The aqueous formation constants for oxoanion association with the cryptands were determined by pH potentiometry and/or NMR, and X-ray analysis of single crystals provides evidence for encapsulation. The extractabilities could not be explained solely on the basis of ligand lipophilicity; the level of protonation also plays an important role.

引用

页码：1961 / 1968

页数：8

共 41 条

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