From polyoxometalate building blocks to polymers and materials: the silver connection

Song, Y.-F., Abbas, H., Ritchie, C., McMillian, N., Long, D.-L. , Gadegaard, N. and Cronin, L. (2007) From polyoxometalate building blocks to polymers and materials: the silver connection. Journal of Materials Chemistry, 17, pp. 1903-1908. (doi: 10.1039/b617830h)

Abstract

Molecular growth processes utilizing polyoxometalate-based building blocks with silver connecting units have been used to produce four new materials: <b>1</b>, [Ag₃(bhepH)₈(W_11.5Na_0.5O₄₀P)₂]·8H₂O (bhep = <i>N,N</i>-bis(2-hydroxyethyl)piperazine); <b>2</b>, [Ag₄(DMSO)₈(Mo₈O₂₆)]n; <b>3</b>, {Ag₃[MnMo₆O₁₈{(OCH₂)₃CNH₂}₂(DMSO)5]·3(DMSO)}_n; <b>4</b>, {Ag₃[MnMo₆O₁₈{(OCH₂)₃CNH2}₂(DMSO)₆(CH₃CN)₂]·DMSO}_n. The compounds were characterised using single crystal X-ray crystallography, elemental analysis, IR, TGA, DSC, and compounds <b>2–4</b> were imaged on silicon substrates using scanning electron microscopy. Compound <b>1</b> represents a 0D dimer connected by silver ions but was also found to form channels facilitated by the hydrogen bonding between the protonated [bhepH]⁺ ligand and the cluster, and complex <b>2</b> forms 2D layered networks, whereas both compounds <b>3</b> and <b>4</b> form 1D networks; these networks are all connected by Ag(I) ions. Thermal studies show that the stabilities of compounds <b>2–4</b> are affected by the linking Ag(I) ions and the DMSO ligands and EM studies on compounds <b>3</b> and <b>4</b> showed the formation of fibres on silicon substrates.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Abbas, Miss Hamera and Song, Dr Yufei and Gadegaard, Professor Nikolaj and Long, Dr Deliang and Cronin, Professor Lee
• Authors: Song, Y.-F., Abbas, H., Ritchie, C., McMillian, N., Long, D.-L., Gadegaard, N., and Cronin, L.
• Subjects: Q Science > QD Chemistry
• College/School: College of Science and Engineering > School of Chemistry; University Centres > Glasgow Materials Research Initiative
• Journal Name: Journal of Materials Chemistry
• ISSN: 0959-9428