A homochiral magnet based on D3 symmetric [(NaO3)Co3] clusters: from spontaneous resolution to absolute chiral induction

Ru-Xin Yao; Xin Cui; Jun Wang; Xian-Ming Zhang

doi:10.1039/C5CC00003C

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A homochiral magnet based on D₃ symmetric [(NaO₃)Co₃] clusters: from spontaneous resolution to absolute chiral induction†

Ru-Xin Yao,^a Xin Cui,^a Jun Wang^a and Xian-Ming Zhang*^a

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* Corresponding authors

^a School of Chemistry & Materials Science, Shanxi Normal University, GongYuan Street, Linfen, Shanxi, China
E-mail: zhangxm@dns.sxnu.edu.cn

Abstract

A pair of novel enantiomeric 3D magnetic complexes [NaCo₃(IA)₆](NO₃)·H₂O (1Δ and 1Λ) have been synthesized using an achiral ligand HIA via spontaneous resolution, which crystallize in the hexagonal crystal system with a chiral P6₃ space group, and diamagnetic sodium cations are located at the center of D₃ symmetric clusters. This kind of spontaneous resolution is uncontrollable and dependent on batches. By utilizing cheap enantiopure mandelic acid as a chiral inducing agent, they are driven to controllable homochiral crystallization of the desired enantiomorph, confirmed by circular dichroism spectra.

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Article information

DOI: https://doi.org/10.1039/C5CC00003C
Article type: Communication
Submitted: 01 Jan 2015
Accepted: 16 Feb 2015
First published: 25 Feb 2015

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Chem. Commun., 2015,51, 5108-5111

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A homochiral magnet based on D₃ symmetric [(NaO₃)Co₃] clusters: from spontaneous resolution to absolute chiral induction

R. Yao, X. Cui, J. Wang and X. Zhang, Chem. Commun., 2015, 51, 5108 DOI: 10.1039/C5CC00003C

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