Self-Assembly and Catalytic Reactivity of BINOL-Bridged Bis(phenanthroline) Metallocages

Upon treatment with ZnII ions, a series of BINOL-bridged bis­(phenanthroline) ligands was self-assembled into [M2L3] metallocages, which were carefully characterized by NMR spectroscopy and ESI-MS spectrometry. Among them, a racemic mixture of the BINOL-bridged bis­(phenanthrolines) underwent chiral...

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Published inInorganic chemistry Vol. 57; no. 7; pp. 3559 - 3567
Main Authors Cheng, Kai-Yu, Wang, Shi-Cheng, Chen, Yu-Sheng, Chan, Yi-Tsu
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 02.04.2018
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Summary:Upon treatment with ZnII ions, a series of BINOL-bridged bis­(phenanthroline) ligands was self-assembled into [M2L3] metallocages, which were carefully characterized by NMR spectroscopy and ESI-MS spectrometry. Among them, a racemic mixture of the BINOL-bridged bis­(phenanthrolines) underwent chiral self-sorting to afford two homochiral metallocages. The narcissistic self-sorting process of the metallocages was observed in the complexation reaction of the constitutionally isomeric bis­(phenanthrolines) with varying connection positions. Moreover, the endo hydroxyl-functionalized metallocage [Zn2{(S)-L2 OH }3] exhibited catalytic activity and substrate selectivity for the Knoevenagel condensation reactions of aromatic tricarbaldehydes with malononitrile.
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ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.7b02540