title: Organic-soluble lacunary {M2(P2W15)2} polyoxometalate sandwiches showing a previously unseen αββα isomerism.
abstract: New polyoxometalate 'sandwiches' have been formed where two [P(2)W(15)O(56)](12-) lacunary Dawson clusters encapsulate two transition metal ions to give clusters with the general formula [M(II)(2)(P(2)W(15)O(56))(2)](20-) (where M = Mn, Co, and Ni respectively), [Fe(III)(2)(P(2)W(15)O(56))(2)](18-), and [Cu(II)(4)(P(2)W(15)O(56))(2)](16-). The Mn, Co, and Ni clusters exhibit a hitherto unseen αββα isomeric geometry and all five compounds are associated with tetrabutylammonium cations which allow for their dissolution in non-aqueous solvent.
authors: WestCHEM, School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, UK.
authors: David
authors: D
authors: Gabb
authors: Chullikkattil P
authors: CP
authors: Pradeep
authors: Haralampos N
authors: HN
authors: Miras
authors: Scott G
authors: SG
authors: Mitchell
authors: De-Liang
authors: DL
authors: Long
authors: Leroy
authors: L
authors: Cronin