Recognition of metal complex guests: supramolecular extraction of water-soluble lanthanide complexes by biological lasalocid ionophore
Recognition of metal complex guests: supramolecular extraction of water-soluble lanthanide complexes by biological lasalocid ionophore
复制标题
金属络合物客体的识别：生物拉沙里德离子载体超分子萃取水溶性镧系元素络合物
DOI：
10.1016/s0020-1693(96)05345-5
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发表时间：
1996
影响因子：
2.8
通讯作者：
Z. Yoshida
中科院分区：
文献类型：
--
作者：
H. Tsukube;H. Takeishi;Z. Yoshida
天然存在的拉沙洛西离子载体首次被证明通过内球络合到四氯化碳中提取水溶性镧系元素三（乙酰丙酮化物）。这为小的Er 3+和Dy 3+络合物提供了比大的Pr 3+和La 3+络合物更高的萃取能力。由于拉沙洛西本身非选择性地提取镧系元素阳离子，因此这种“金属络合物识别”在分离和感测有价值的镧系元素方面具有新的和有趣的可能性。
Naturally occurring lasalocid ionophore was first demonstrated to extract water-soluble lanthanide tris(acetylacetonates) via inner-sphere complexation into CCl4. This offered higher extraction abilities for small Er3+and Dy3+complexes than for large Pr3+and La3+complexes. Since the lasalocid extracted lanthanide cations themselves non-selectively, this ‘metal complex recognition’ has new and interesting possibilities in separation and sensing of valuable lanthanides.