title: Selective formation of a unique diphosphonium-diphosphine from a tetraphosphine double protonation induced by zirconium salts.
abstract: A mixed ferrocenyl diphosphonium-diphosphine cation, associated with two [ZrCl(5).thf](-) anions, is obtained from a ferrocenyl tetraphosphine, as a unique didentate ionic metalloligand in a perfectly selective reaction induced by ZrCl(4) in THF.
authors.affiliation: Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR-CNRS 5260, ARECO, 9 avenue Alain Savary, BP 47870, 21078 Dijon cedex, France.
authors.forename: Ali
authors.initials: A
authors.lastname: Jahel
authors.forename: Nikolay V
authors.initials: NV
authors.lastname: Vologdin
authors.forename: Nadine
authors.initials: N
authors.lastname: Pirio
authors.forename: Hélène
authors.initials: H
authors.lastname: Cattey
authors.forename: Philippe
authors.initials: P
authors.lastname: Richard
authors.forename: Philippe
authors.initials: P
authors.lastname: Meunier
authors.forename: Jean-Cyrille
authors.initials: JC
authors.lastname: Hierso