The present invention provides a method of forming an oxidatively-stable aqueous Eu(II) complex by synthesizing ligands that coordinate to large, soft, electron rich metals like Eu(II). The invention also provides an oxidatively stable aqueous Eu(II) complex. The complex can be used for a variety of purposes some of which include, but are not limited to, in paramagnetic chemical exchange saturation transfer, as a medical diagnostic, as a semiconductor, and for use in forming materials.
The present invention provides a method of forming an oxidatively-stable aqueous Eu(II) complex by synthesizing ligands that coordinate to large, soft, electron rich metals like Eu(II). The invention also provides an oxidatively stable aqueous Eu(II) complex. The complex can be used for a variety of purposes some of which include, but are not limited to, in paramagnetic chemical exchange saturation transfer, as a medical diagnostic, as a semiconductor, and for use in forming materials.
Oxidatively Stable, Aqueous Europium(II) Complexes through Steric and Electronic Manipulation of Cryptand Coordination Chemistry
作者:Nipuni-Dhanesha H. Gamage、Yujiang Mei、Joel Garcia、Matthew J. Allen
DOI:10.1002/anie.201002789
日期:2010.11.15
A series of cryptands has been prepared and they demonstrate the relationship between oxidative stability of aqueous EuII and ligand properties (see figure). One of these EuII complexes is more stable than FeII in hemoglobin and appears to be the most oxidatively‐stableaqueous EuII species known. The high stability of EuII is expected to enable the use of the unique magnetic and optical properties
已经制备了一系列穴状配体,它们证明了 Eu II水溶液的氧化稳定性与配体性质之间的关系(见图)。这些 Eu II络合物之一在血红蛋白中比 Fe II更稳定,并且似乎是已知的氧化最稳定的水性 Eu II物质。Eu II的高稳定性有望在体内利用该离子独特的磁性和光学特性。