Robotic stepwise synthesis of hetero-multinuclear metal oxo clusters as single-molecule magnets

Minato, T., Salley, D., Mizuno, N., Yamaguchi, K., Cronin, L. and Suzuki, K. (2021) Robotic stepwise synthesis of hetero-multinuclear metal oxo clusters as single-molecule magnets. Journal of the American Chemical Society, 143(32), pp. 12809-12816. (doi: 10.1021/jacs.1c06047) (PMID:34358427)

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Abstract

An efficient stepwise synthesis method for discovering new heteromultinuclear metal clusters using a robotic workflow is developed where numerous reaction conditions for constructing heteromultinuclear metal oxo clusters in polyoxometalates (POMs) were explored using a custom-built automated platform. As a result, new nonanuclear tetrametallic oxo clusters {FeMn4}Lu2A2 in TBA5[(A-α-SiW9O34)2FeMn4O2{Lu(acac)2}2A2] (IIA; A = Ag, Na, K; TBA = tetra-n-butylammonium; acac = acetylacetonate) were discovered by the installation of diamagnetic metal cations A+ into a paramagnetic {FeMn4}Lu2 unit in TBA7[(A-α-SiW9O34)2FeMn4O2{Lu(acac)2}2] (I). POMs IIA exhibited single-molecule magnet properties with the higher energy barriers for magnetization reversal (IIAg, 40.0 K; IINa, 40.3 K; IIK, 26.7 K) compared with that of the parent I (19.7 K). Importantly, these clusters with unique properties were constructed as designed by a step of the predictable sequential multistep reactions with the time-efficient platform.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Salley, Mr Daniel and Minato, Dr Takuo and Cronin, Professor Lee
Authors: Minato, T., Salley, D., Mizuno, N., Yamaguchi, K., Cronin, L., and Suzuki, K.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Journal of the American Chemical Society
Publisher:American Chemical Society
ISSN:0002-7863
ISSN (Online):1520-5126
Published Online:06 August 2021
Copyright Holders:Copyright © 2021 American Chemical Society
First Published:First published in Journal of the American Chemical Society 143(32): 12809-12816
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
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190641Synthetic Biology applications to Water Supply and RemediationSteven BeaumontEngineering and Physical Sciences Research Council (EPSRC)EP/K038885/1Research and Innovation Services
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190796Programmable 'Digital' Synthesis for Discovery and Scale-up of Molecules, Clusters and NanomaterialsLeroy CroninEngineering and Physical Sciences Research Council (EPSRC)EP/L023652/1Chemistry
172151SMARTPOM: Artificial-Intelligence Driven Discovery and Synthesis of Polyoxometalate ClustersLeroy CroninEuropean Research Council (ERC)670467Chemistry