Synthesis of a homochiral carboxylate-containing tetradentate ligand and its Co(III) complex

被引：4
|
作者：
Lee, Seok Jong [1 ]
Sung, Hye Ran [1 ]
Son, Jeong-Ho [1 ]
Ramesh, Rengan [1 ]
Ahn, Kyo Han [1 ]
机构：
[1] POSTECH, Dept Chem, Pohang 790784, South Korea
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2006年 / 9卷 / 05期
基金：
新加坡国家研究基金会;
关键词：
N3O-chelate; tetradentate ligand; Co(III) complex; X-ray diffraction;
D O I：
10.1016/j.inoche.2006.02.023
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A new class of easily tunable, homochiral tetradentate ligand, (R,R)-[(N-benzyl-N-[2-[N-benzyl-N-(pyridine-2-yl)methyl]amino}-cyclohexyl)amino]acetic acid (2), has been synthesized and characterized by NMR spectroscopy. The synthesis involves highly selective N-alkylation of the 1,2-diamine via an imidazolidine intermediate, giving up to 78% overall yield. The corresponding Co(III) complex of general composition [Co(2a)(NO2)(2)] has been synthesized and the major stereoisomer has been characterized by X-ray crystallography. Molecular calculation at PM3 level indicates that the major isomer is cis-beta-Delta-syn isomer. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：518 / 521
页数：4
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