Coding the assembly of polyoxotungstates with a programmable reaction system

Ruiz de la Oliva, A., Sans, V., Miras, H. , Long, D. L. and Cronin, L. (2017) Coding the assembly of polyoxotungstates with a programmable reaction system. Inorganic Chemistry, 56(9), pp. 5089-5095. (doi: 10.1021/acs.inorgchem.7b00206) (PMID:28414229) (PMCID:PMC5423703)

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Chemical transformations are normally conducted in batch or flow mode, thereby allowing the chemistry to be temporally or spatially controlled, but these approaches are not normally combined dynamically. However, the investigation of the underlying chemistry masked by the self-assembly processes that often occur in one-pot reactions and exploitation of the potential of complex chemical systems requires control in both time and space. Additionally, maintaining the intermediate constituents of a self-assembled system “off equilibrium” and utilizing them dynamically at specific time intervals provide access to building blocks that cannot coexist under one-pot conditions and ultimately to the formation of new clusters. Herein, we implement the concept of a programmable networked reaction system, allowing us to connect discrete “one-pot” reactions that produce the building block{W11O38} ≡ {W11} under different conditions and control, in real time, the assembly of a series of polyoxometalate clusters {W12O42} ≡ {W12}, {W22O74} ≡ {W22} 1a, {W34O116} ≡ {W34} 2a, and {W36O120} ≡ {W36} 3a, using pH and ultraviolet–visible monitoring. The programmable networked reaction system reveals that is possible to assemble a range of different clusters using {W11}-based building blocks, demonstrating the relationship between the clusters within the family of iso-polyoxotungstates, with the final structural motif being entirely dependent on the building block libraries generated in each separate reaction space within the network. In total, this approach led to the isolation of five distinct inorganic clusters using a “fixed” set of reagents and using a fully automated sequence code, rather than five entirely different reaction protocols. As such, this approach allows us to discover, record, and implement complex one-pot reaction syntheses in a more general way, increasing the yield and reproducibility and potentially giving access to nonspecialists.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Moiras, Dr Haralampos and Long, Dr Deliang and Cronin, Professor Lee and Sans Sangorrin, Dr Victor
Authors: Ruiz de la Oliva, A., Sans, V., Miras, H., Long, D. L., and Cronin, L.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Inorganic Chemistry
Publisher:American Chemical Society
ISSN (Online):1520-510X
Published Online:17 April 2017
Copyright Holders:Copyright © 2017 American Chemical Society
First Published:First published in Inorganic Chemistry 59(9):5089-5095
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
503295Molecular-Metal-Oxide-nanoelectronicS (M-MOS): Achieving the Molecular LimitLeroy CroninEngineering & Physical Sciences Research Council (EPSRC)EP/H024107/1CHEM - CHEMISTRY
562821Innovative Manufacturing Research Centre for Continuous Manufacturing and Crystallisation (CMAC)Leroy CroninEngineering & Physical Sciences Research Council (EPSRC)EP/I033459/1CHEM - CHEMISTRY
577391Programmable Molecular Metal Oxides (PMMOs) - From Fundamentals to ApplicationLeroy CroninEngineering & Physical Sciences Research Council (EPSRC)EP/J015156/1CHEM - CHEMISTRY
685741SMARTPOM: Artificial-Intelligence Driven Discovery and Synthesis of Polyoxometalate ClustersLeroy CroninEuropean Research Council (ERC)670467CHEM - CHEMISTRY