Ionic organic cage-encapsulating phase-transferable metal clusters

Chemical Science
Su-Yun ZhangJiayin Yuan

Abstract

Exploration of metal clusters (MCs) adaptive to both aqueous and oil phases without disturbing their size is promising for a broad scope of applications. The state-of-the-art approach via ligand-binding may perturb MCs' size due to varied metal-ligand binding strength when shuttling between solvents of different polarity. Herein, we applied physical confinement of a series of small noble MCs (<1 nm) inside ionic organic cages (I-Cages), which by means of anion exchange enables reversible transfer of MCs between aqueous and hydrophobic solutions without varying their ultrasmall size. Moreover, the MCs@I-Cage hybrid serves as a recyclable, reaction-switchable catalyst featuring high activity in liquid-phase NH3BH3 (AB) hydrolysis reaction with a turnover frequency (TOF) of 115 min-1.

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Citations

Aug 26, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Qiu-Ting FuZhi-Guo Gu
Aug 5, 2020·Angewandte Chemie·Su-Yun ZhangYu-Jia Zeng
Jan 26, 2021·Chemical Society Reviews·Changlong Wang, Didier Astruc
Jun 26, 2020·Chemical Reviews·Chuanbo GaoYadong Yin
Oct 28, 2019·Journal of the American Chemical Society·Thais GranchaDaniel Maspoch
Nov 16, 2019·Journal of the American Chemical Society·Dawei ZhangJonathan R Nitschke

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Methods Mentioned

BETA
transmission electron microscopy
electron microscopy
nuclear
NMR
nuclear magnetic resonance

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