High-Fidelity Stereochemical Memory in a Fe4IIL4 Tetrahedral Capsule

被引：90

作者：

Castilla, Ana M. ^{[1
]}

Ousaka, Naoki ^{[1
]}

Bilbeisi, Rana A. ^{[1
]}

Valeri, Elisa ^{[1
]}

Ronson, Tanya K. ^{[1
]}

Nitschke, Jonathan R. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 47期

基金：

欧洲研究理事会; 英国工程与自然科学研究理事会;

关键词：

SUPRAMOLECULAR CHIRALITY; RESOLUTION; COMPLEXES; PORPHYRIN; CHEMISTRY; LIGANDS; M4L4; AMPLIFICATION; RECOGNITION; BINDING;

D O I：

10.1021/ja410117q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new class of (Fe4L4)-L-II capsules, based upon a tritopic trialdehyde subcomponent, is reported. One such capsule was prepared diastereoselectively through the incorporation of a chiral amine residue. This amine was displaced by an achiral one, while maintaining the stereochemistry of the cage framework (99% ee); this cage retained its stereochemistry even after 4 days at 90 degrees C. Mechanistic studies indicate the memory displayed by this capsule to be the result of effective stereochemical communication between the metal centers mediated by the rigid 3-fold-symmetric faces, in combination with a stepwise substitution mechanism.

引用

页码：17999 / 18006

页数：8

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