6533b82bfe1ef96bd128e056
RESEARCH PRODUCT
A dihydrogen arsenate-mediated supramolecular network: crystal structure and magnetic properties of {[(bipy)Cu(μ-H2AsO4)(H2AsO4)]2}n
Robert P. DoyleMark NieuwenhuyzenPaul E. KrugerMiguel JulveFrancesc Lloretsubject
ChemistryHydrogen bondSupramolecular chemistryArsenateGeneral ChemistryCrystal structureCondensed Matter PhysicsMagnetic susceptibilityAqueous suspensionAntiferromagnetic couplingCrystallographychemistry.chemical_compoundCovalent bondGeneral Materials Sciencedescription
Treatment of an aqueous suspension of Cu(OH)2 and 2,2′-bipyridine (bipy) with either Na2HAsO4·7H2O (1∶1∶2) or As2O5 (1∶1∶1) yields single crystals of {[(bipy)Cu(μ-H2AsO4)(H2AsO4)]2}n, 1, on standing. The solid-state structure of 1 consists of a three dimensional supramolecular network, supported by a combination of coordination covalent, hydrogen bonding and face-to-face π–π interactions. Variable temperature magnetic susceptibility measurements reveal very weak antiferromagnetic coupling between Cu(II) centres across the dihydrogen arsenate bridges (J = −0.58 cm−1).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-01-01 | CrystEngComm |