Details

Autor(en) / Beteiligte

• Bresien, Jonas
• Ellinger, Stefan
• Harloff, Jörg
• Schulz, Axel
• Sievert, Katharina
• Stoffers, Alrik
• Täschler, Christoph
• Villinger, Alexander
• Zur Täschler, Cornelia

Titel

Tetracyanido(difluorido)phosphates M+[PF2(CN)4]

Ist Teil von

• Angewandte Chemie (International ed.), 2015-04, Vol.54 (15), p.4474-4477

Auflage

International ed. in English

Ort / Verlag

Weinheim: WILEY-VCH Verlag

Erscheinungsjahr

2015

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The systematic study of the reaction of M[PF6] salts and Me3SiCN led to a synthetic method for the synthesis and isolation of a series of salts containing the unprecedented [PF2(CN)4]− ion in good yields. The reaction temperature, pressure, and stoichiometry were optimized. The crystal structures of M[PF2(CN)4] (M=[nBu4N]+, Ag+, K+, Li+, H5O2+) were determined. X‐ray crystallography showed the exclusive formation of the cis isomer in accord with 31P and 19F solution NMR spectroscopy data. Starting with the K[PF2(CN)4] the room temperature ionic liquid EMIm[PF2(CN)4] was prepared exhibiting a rather low viscosity. Marriage at high temperature: Treatment of [nBu4N][PF6] with Me3SiCN led to the formation of the [nBu4N]+ salt of the [PF2(CN)4]− ion (see structure; P=orange, C=gray, N=dark blue, F=light blue). This anion was utilized for the synthesis of low‐viscosity ionic liquids and as a building block for the design of coordination polymers in which Lewis acidic metals were used as counterions.