title: Easily Accessible Rare-Earth-Containing Phosphonium Room-Temperature Ionic Liquids: EXAFS, Luminescence, and Magnetic Properties.
abstract: A range of liquid rare earth chlorometallate complexes with the alkyl-phosphonium cation, [P666 14](+), has been synthesized and characterized. EXAFS confirmed the predominant liquid-state speciation of the [LnCl6](3-) ion in the series with Ln = Nd, Eu, Dy. The crystal structure of the shorter-alkyl-chain cation analogue [P4444](+) has been determined and exhibits a very large unit cell. The luminescence properties, with visible-light emissions of the liquid Tb, Eu, Pr, and Sm and the NIR emissions for the Nd and Er compounds, were determined. The effective magnetic moments were measured and fitted for the Nd, Tb, Ho, Dy, Gd, and Er samples.
authors.affiliation: School of Chemistry and Chemical Engineering, The QUILL Research Centre, David Keir Building, Queen's University Belfast , Stranmillis Road, Belfast BT9 5AG, United Kingdom.
authors.forename: Jorge
authors.initials: J
authors.lastname: Alvarez-Vicente
authors.affiliation: School of Chemistry and Chemical Engineering, The QUILL Research Centre, David Keir Building, Queen's University Belfast , Stranmillis Road, Belfast BT9 5AG, United Kingdom.
authors.forename: Sahra
authors.initials: S
authors.lastname: Dandil
authors.affiliation: Dutch-Belgian Beamline (DUBBLE), ESRF - The European Synchrotron , CS 40220, 38043 Grenoble Cedex 9, France.
authors.forename: Dipanjan
authors.initials: D
authors.lastname: Banerjee
authors.affiliation: School of Chemistry and Chemical Engineering, The QUILL Research Centre, David Keir Building, Queen's University Belfast , Stranmillis Road, Belfast BT9 5AG, United Kingdom.
authors.forename: H Q Nimal
authors.initials: HQ
authors.lastname: Gunaratne
authors.affiliation: Centre for Nanostructured Media, School of Mathematics and Physics, Queen's University Belfast , Belfast BT7 1NN, United Kingdom.
authors.forename: Suzanne
authors.initials: S
authors.lastname: Gray
authors.affiliation: Centre for Nanostructured Media, School of Mathematics and Physics, Queen's University Belfast , Belfast BT7 1NN, United Kingdom.
authors.forename: Solveig
authors.initials: S
authors.lastname: Felton
authors.affiliation: School of Chemistry and Chemical Engineering, The QUILL Research Centre, David Keir Building, Queen's University Belfast , Stranmillis Road, Belfast BT9 5AG, United Kingdom.
authors.forename: Geetha
authors.initials: G
authors.lastname: Srinivasan
authors.affiliation: L3 - Luminescent Lanthanide Lab, Department of Inorganic and Physical Chemistry, Ghent University , Krijgslaan 281-S3, B-9000 Ghent, Belgium.
authors.forename: Anna M
authors.initials: AM
authors.lastname: Kaczmarek
authors.affiliation: L3 - Luminescent Lanthanide Lab, Department of Inorganic and Physical Chemistry, Ghent University , Krijgslaan 281-S3, B-9000 Ghent, Belgium.
authors.forename: Rik
authors.initials: R
authors.lastname: Van Deun
authors.affiliation: School of Chemistry and Chemical Engineering, The QUILL Research Centre, David Keir Building, Queen's University Belfast , Stranmillis Road, Belfast BT9 5AG, United Kingdom.
authors.forename: Peter
authors.initials: P
authors.lastname: Nockemann