title: Capture of di-protonated [2.2.2]cryptand in the cavity of two p-sulfonated calixarenes as part of 2-D bi-layer lanthanide coordination polymers.
abstract: Treating p-sulfonatocalix[4]arene with lanthanide ions, Ln3+ (Ln = Ce, Nd, Sm and Eu), in the presence of [2.2.2]cryptand results in a 2-D bi-layer coordination polymer with axially elongated diprotonated cryptand in the cavity of two p-sulfonatocalix[4]arenes.
authors.affiliation: Department of Chemistry, University of Leeds, Woodhouse Lane, Leeds, UK LS2 9JT.
authors.forename: Scott J
authors.initials: SJ
authors.lastname: Dalgarno
authors.forename: Colin L
authors.initials: CL
authors.lastname: Raston