Tetra-Armed Cyclen Bearing Two Benzo-15-Crown-5 Ethers in the Side Arms

被引：11
|
作者：
Ikeda, Mari [1 ,2 ]
Matsumoto, Mikako [3 ]
Kuwahara, Shunsuke [2 ,3 ]
Habata, Yoichi [2 ,3 ]
机构：
[1] Chiba Inst Technol, Fac Engn, Educ Ctr, Chiba 2750023, Japan
[2] Toho Univ, Fac Sci, Res Ctr Mat Integrated Properties, Chiba 2748510, Japan
[3] Toho Univ, Fac Sci, Dept Chem, Chiba 2748510, Japan
来源：
INORGANIC CHEMISTRY | 2014年 / 53卷 / 19期
关键词：
AG+-PI INTERACTIONS; ARGENTIVOROUS MOLECULES; CROWN-ETHER; SILVER(I); WATER; COMPLEXES; EQUILIBRIA; RECEPTORS; METHANOL; CHANNEL;
D O I：
10.1021/ic501590a
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A tetra-armed cyclen bearing two benzo-15-crown-S ethers in the side arms (1) is reported. When 1 equiv of Ag+ is added to 1, the aromatic side arms cover the Ag+ incorporated in the cyclen. Upon the addition of more than 1 equiv of Ag+ to 1, the cyclen moiety binds Ag+ first, before the crown ether in the side arms subsequently binds Ag+. The log K-11 log K-12, and log K-13 values for the 1:1, 1:2, and 1:3 (=1/Ag+) complexes were estimated to be 9.4, 5.8, and 4.0, respectively. We found that the tetra-armed cyclen possessing crown ethers in the side arms behaves like an argentivorous molecule even though the crown ether arms bind metal cations.
引用
收藏
页码：10514 / 10519
页数：6
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