title: Core expansion of bis-calix[4]arene-supported clusters.
abstract: Calix[4]arenes are excellent ligand supports for the synthesis of polymetallic clusters of transition and lanthanide metal ions, as well as 3d-4f ion mixtures. Bis-calix[4]arene, a recent addition to the calixarene family, forms structurally related cages that mirror the metal ion binding preferences of calix[4]arene. Here we show that stoichiometric control causes remarkable expansion in the cores of two known bis-calix[4]arene-supported clusters, with concomitant changes to the magnetic properties observed.
authors.affiliation: Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, Scotland EH14 4AS, UK. S.J.Dalgarno@hw.ac.uk.
authors.forename: Marco
authors.initials: M
authors.lastname: Coletta
authors.affiliation: Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, Scotland EH14 4AS, UK. S.J.Dalgarno@hw.ac.uk.
authors.forename: Ross
authors.initials: R
authors.lastname: McLellan
authors.affiliation: Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, Scotland EH14 4AS, UK. S.J.Dalgarno@hw.ac.uk.
authors.forename: Amy
authors.initials: A
authors.lastname: Waddington
authors.affiliation: EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, Scotland EH9 3FJ, UK. ebrechin@ed.ac.uk.
authors.forename: Sergio
authors.initials: S
authors.lastname: Sanz
authors.affiliation: Station 11.3.1, Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA94720, USA.
authors.forename: Kevin J
authors.initials: KJ
authors.lastname: Gagnon
authors.affiliation: Station 11.3.1, Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA94720, USA.
authors.forename: Simon J
authors.initials: SJ
authors.lastname: Teat
authors.affiliation: EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, Scotland EH9 3FJ, UK. ebrechin@ed.ac.uk.
authors.forename: Euan K
authors.initials: EK
authors.lastname: Brechin
authors.affiliation: Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, Scotland EH14 4AS, UK. S.J.Dalgarno@hw.ac.uk.
authors.forename: Scott J
authors.identifier: http://orcid.org/0000-0001-7831-012X
authors.initials: SJ
authors.lastname: Dalgarno