title: Direct X-Ray Scattering Evidence for Metal-Metal Interactions in Solution at the Molecular Level.
abstract: The study of the aggregation of small molecules in solution induced by metallophilic interactions has been traditionally performed by spectroscopic methods through identification of chemical changes in the system. Herein we demonstrate the use of SAXS (small-angle X-ray scattering) to identify structures in solution, taking advantage of the excellent scattering intensity of heavy metals which have undergone association by metallophilic interactions. An analysis of the close relationship between solid-state and solution arrangements of a dynamic [Ag2 (bisNHC)2 ](2+) (NHC=N-heterocyclic carbene) system, and how they are complementary to each other, is reported.
authors.affiliation: Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza (Spain).
authors.forename: Andrea
authors.initials: A
authors.lastname: Cebollada
authors.affiliation: Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza (Spain).
authors.forename: Alba
authors.initials: A
authors.lastname: Vellé
authors.affiliation: Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza (Spain).
authors.forename: Manuel
authors.initials: M
authors.lastname: Iglesias
authors.affiliation: Center for Sustainable Materials Chemistry, Department of Chemistry, Oregon State University, Corvallis, OR 97331-4003 (USA).
authors.forename: Lauren B
authors.initials: LB
authors.lastname: Fullmer
authors.affiliation: Center for Sustainable Materials Chemistry, Department of Chemistry, Oregon State University, Corvallis, OR 97331-4003 (USA).
authors.forename: Sara
authors.initials: S
authors.lastname: Goberna-Ferrón
authors.affiliation: Center for Sustainable Materials Chemistry, Department of Chemistry, Oregon State University, Corvallis, OR 97331-4003 (USA). May.Nyman@oregonstate.edu.
authors.forename: May
authors.initials: M
authors.lastname: Nyman
authors.affiliation: Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza (Spain). pablo.sanz@unizar.es.
authors.forename: Pablo J
authors.initials: PJ
authors.lastname: Sanz Miguel
keywords: NMR spectroscopy; carbene ligands; metal-metal interactions; silver; small-angle X-ray scattering