title: First examples of Au(I)-X-Ag(I) halonium cations (X = Cl and Br).
abstract: Novel {[(mu-PAnP)(AuX)2]2Ag}+SbF6- halonium ions (X = Cl, Br; PAnP = 9,10-bis(diphenylphosphino)anthracene) were synthesized from the reactions between (mu-PAnP)(AuX)2 and 1/2 mol equiv of AgSbF6. The compounds feature an unprecedented distorted Au4X4 dodecahedron which encapsulates a silver(I) ion at its center. The halonium ions are stabilized by collective actions of metallophilic Au-Ag, aromatic pi-pi, and Ag-X interactions.
authors.affiliation: Department of Chemistry, The National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore.
authors.forename: Ke
authors.initials: K
authors.lastname: Zhang
authors.forename: Janardhana
authors.initials: J
authors.lastname: Prabhavathy
authors.forename: John H K
authors.initials: JH
authors.lastname: Yip
authors.forename: Lip Lin
authors.initials: LL
authors.lastname: Koh
authors.forename: Geok Kheng
authors.initials: GK
authors.lastname: Tan
authors.forename: Jagadese J
authors.initials: JJ
authors.lastname: Vittal