Research Article: rac-{[2-(Diphenyl­thio­phosphor­yl)ferrocen­yl]meth­yl}dimethyl­ammonium diphenyl­dithio­phosphinate

Date Published: April 01, 2012

Publisher: International Union of Crystallography

Author(s): Nardjes Mouas, Hocine Merazig, Jean-Claude Daran, Eric Manoury.


2-(Diphenyl­thio­phosphino)dimethyl­amino­methyl­ferrocene is a key inter­mediate in the synthesis of various ferrocenyl ligands. During one such synthesis, the title compound, [Fe(C5H5)(C20H22NPS)](C12H10PS2), was isolated as a by-product. It is built up by association of (2-(diphenyl­phosphino)ferrocen­yl)meth­yl)dimethyl­ammonium cations and diphenyl­phosphino dithio­ate anions. N—H⋯S, C—H⋯S and C—H⋯π inter­actions link the anions and cations. Each anion–cation pair is linked two by two through C—H⋯π inter­actions, forming pseudo dimers.

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For the synthesis of various ferrocenyl ligands, see: Audin et al. (2010 ▶); Le Roux et al. (2007 ▶); Routaboul et al. (2005 ▶, 2007 ▶). For related structures containing the C12H10PS2 anion, see: Alison et al. (1971 ▶); Fackler et al. (1982 ▶); Silvestru et al. (1995 ▶). For related ferrocenyl ammonium structures, see: Štěpnička & Císařová, (2003 ▶). For a related ferrocenyl­amine structure, see: Mateus et al. (2006 ▶).