title: rac-{[2-(Diphenyl-thio-phosphor-yl)ferrocen-yl]meth-yl}dimethyl-ammonium diphenyl-dithio-phosphinate.
abstract: 2-(Diphenyl-thio-phosphino)dimethyl-amino-methyl-ferrocene is a key inter-mediate in the synthesis of various ferrocenyl ligands. During one such synthesis, the title compound, [Fe(C(5)H(5))(C(20)H(22)NPS)](C(12)H(10)PS(2)), was isolated as a by-product. It is built up by association of (2-(diphenyl-phosphino)ferrocen-yl)meth-yl)dimethyl-ammonium cations and diphenyl-phosphino dithio-ate anions. N-H⋯S, C-H⋯S and C-H⋯π inter-actions link the anions and cations. Each anion-cation pair is linked two by two through C-H⋯π inter-actions, forming pseudo dimers.
authors.forename: Nardjes
authors.initials: N
authors.lastname: Mouas
authors.forename: Hocine
authors.initials: H
authors.lastname: Merazig
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Daran
authors.forename: Eric
authors.initials: E
authors.lastname: Manoury