Volume 22, Issue 12 p. 4175-4188
Full Paper

Lewis Acid Catalyzed Synthesis of Cyanidophosphates

Kevin Bläsing

Kevin Bläsing

Institut für Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany

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Dr. Stefan Ellinger

Dr. Stefan Ellinger

Lonzastrasse, 3930 Visp, Switzerland

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Dr. Jörg Harloff

Dr. Jörg Harloff

Institut für Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany

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Prof. Dr. Axel Schulz

Corresponding Author

Prof. Dr. Axel Schulz

Institut für Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany

Abteilung Materialdesign, Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany

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Katharina Sievert

Katharina Sievert

Institut für Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany

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Dr. Christoph Täschler

Dr. Christoph Täschler

Lonzastrasse, 3930 Visp, Switzerland

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Dr. Alexander Villinger

Dr. Alexander Villinger

Institut für Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany

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Dr. Cornelia Zur Täschler

Dr. Cornelia Zur Täschler

Lonzastrasse, 3930 Visp, Switzerland

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First published: 05 February 2016
Citations: 12

Graphical Abstract

Cyanido(fluorido)phosphates: Salts containing [PF6−n(CN)n] (n=1–4) ions were isolated on a preparative scale by utilizing Lewis acids (LA) catalysts under mild conditions (see equation). The best results with respect to purity, yield, and low cost were obtained when the F/CN substitution reactions were carried out in ionic liquids.

Abstract

Salts containing new cyanido(fluorido)phosphate anions of the general formula [PF6−n(CN)n] (n=1–4) were synthesized by a very mild Lewis-acid-catalyzed synthetic protocol and fully characterized. All [PF6−n(CN)n] (n=1–4) salts could be isolated on a preparative scale. It was also possible to detect the [PF(CN)5] but not the [P(CN)6] anion. The best results with respect to purity, yield, and low cost were obtained when the F/CN substitution reactions were carried out in ionic liquids.