Issue 46, 2020

Porous metal–organic alloys based on soluble coordination cages

Abstract

Diverse strategies for the preparation of mixed-metal three-dimensional porous solids abound, although many of them lend themselves only moderate levels of tunability. Herein, we report the design and synthesis of surface functionalized permanently microporous coordination cages and their use in the isolation of mixed metal solids. Judicious alkoxide-based ligand functionalization was utilized to tune the solubility of starting copper(II)-based cages and their resulting compatibility with the mixed-cage approach described here. We further prepared a family of isostructural molybdenum(II) cages for a subset of the ligands. The preparation of mixed-metal cage solids proceeds under facile conditions where solutions of parent cages are mixed and product phases isolated. A suite of spectroscopic and characterization tools confirm the starting cages are intact in the amorphous product. Finally, we show that utilization of precise ligand functional groups can be used to prepare mixed cage solids that can be easily and cleanly separated into their constituent components through simple solvent washing or solvent extraction techniques.

Graphical abstract: Porous metal–organic alloys based on soluble coordination cages

Supplementary files

Article information

Article type
Edge Article
Submitted
07 Sep 2020
Accepted
19 Oct 2020
First published
19 Oct 2020
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY license

Chem. Sci., 2020,11, 12540-12546

Porous metal–organic alloys based on soluble coordination cages

A. M. Antonio, K. J. Korman, G. P. A. Yap and E. D. Bloch, Chem. Sci., 2020, 11, 12540 DOI: 10.1039/D0SC04941G

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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