以中心二醇为立体控制基团的螺旋结构的膨胀和压缩

Saskia Grüninger, C. Mevissen, K. Rissanen, J. Ward, M. Albrecht
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引用次数: 0

摘要

dicatechol酯配体2-H4形成压缩的螺旋酸盐Li4[(2)3Ti2],其在去除内部结合的锂阳离子时膨胀。在压缩形式中,手性二醇单元控制络合物的立体化学,该立体化学在体系膨胀时损失。
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Expansion and Compression of a Helicate with Central Diol Units as Stereocontrolling Moieties
The dicatechol ester ligand 2-H4 forms the compressed helicate Li4[(2)3Ti2] which upon removal of the internally bound lithium cations expands. In the compressed form, the chiral diol units control the stereochemistry of the complex which is lost upon expansion of the system.
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