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Issue 16, 2019

Syntheses, structures and properties of three organic–inorganic hybrid polyoxotungstates constructed from {Ni6PW9} building blocks: from isolated clusters to 2-D layers

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Abstract

Three new hexa-NiII-substituted organic–inorganic hybrid polyoxotungstates, H[Ni0.5(en)(H2O)][Ni6(en)3(OAc)2(Tris)(H2O)2(B-α-PW9O34)]·5H2O (1), [Ni(en)2][Ni6(en)33-OH)3(1,3-bdc)(H2O)2(B-α-PW9O34)]·9H2O (2) and [Ni(en)(H2O)4]3[Ni6(en)3(Tris)(1,3-bdc)1.5(B-α-PW9O34)]2·8H2O (3) (en = ethylenediamine, Tris = tris(hydroxymethyl)aminomethane, 1,3-bdc = 1,3-benzenedicarboxylate) were hydrothermally synthesized and characterized. Both 1 and 3 contained {Ni6(Tris)(en)3(B-α-PW9O34)} units, whereas 2 was constructed from [Ni6(en)33-OH)3(B-α-PW9O34)] units. 1 is a new monomer. 2 comprises a 1-D chain built by [Ni6(en)33-OH)3(B-α-PW9O34)] structural building units (SBUs) linked by 1,3-bdc ligands. 3 represents the first 2-D polyoxometalate cluster-organic frameworks (PCOFs) with a honeycomb-like lattice that consists of [Ni6(en)3(Tris)(B-α-PW9O34)] SBUs linked by 1,3-bdc ligands. 1 indicated ferromagnetic coupling interactions existing in the hexa-NiII clusters. 1–3 showed excellent adsorption capabilities for MB and 3 exhibited good electrocatalytic activities for H2O2 and NaNO2 reduction.

Graphical abstract: Syntheses, structures and properties of three organic–inorganic hybrid polyoxotungstates constructed from {Ni6PW9} building blocks: from isolated clusters to 2-D layers

Supplementary files

Article information


Submitted
10 Feb 2019
Accepted
10 Mar 2019
First published
11 Mar 2019

CrystEngComm, 2019,21, 2641-2647
Article type
Paper

Syntheses, structures and properties of three organic–inorganic hybrid polyoxotungstates constructed from {Ni6PW9} building blocks: from isolated clusters to 2-D layers

Z. Zhang, Y. Wang, H. Li, K. Sun and G. Yang, CrystEngComm, 2019, 21, 2641 DOI: 10.1039/C9CE00194H

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