Z. Naturforsch. 2014,
69b, 1 – 7
doi:10.5560/ZNB.2014-3291
The Hexaammine Copper(II) Fluoride Monohydrate [Cu(NH3)6][F(H2O)F]: Synthesis and Crystal Structure
Patrick
Woidy,
Weizhe
Meng and
Florian
Kraus
AG Fluorchemie, Department Chemie, Technische Universität München, Lichtenbergstraße 4, 85747 Garching, Germany
Reprint requests to PD Dr. Florian Kraus. Fax: +49-89-289-13762. E-mail:
fluorchemie@tum.de
Received October 18, 2013 / published online December 30, 2013
We report the synthesis and crystal structure of the monohydrate of hexaammine copper(II) difluoride, [Cu(NH3)6]F2 · H2O, which was synthesized from CuF2 · 2 H2O in liquid ammonia. The compound crystallizes in the chiral space group P3221 (no. 154) as traffic-blue, plate-shaped crystals with a = 6.738(1), c = 18.210(6) Å, V = 715.9(3) Å3 at 150 K with Z = 3. It contains the rare [F(H2O)F]2− anion bound by strong O–H···F hydrogen bonding.
Key words: Copper(II) Fluoride, Liquid Ammonia, Ammine Complexes, Hydrates, Crystal Structure, Hydrogen Bonds