(C5H12N)Cu2Br3: A Piperidinium Copper(I) Bromide with [Cu2Br3]− Ladders

Crystals

Theresa Komm²  Daniel Biner²  Antonia Neels¹ 

[1] Institute of Microtechnology, CSEM, Rue Jaquet-Droz 1, CH-2002 Neuchâtel, Switzerland;Department of Chemistry and Biochemistry, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland;

关键词: halides;    copper;    bromine;    solid state structure;    X-ray diffraction;   

DOI  :  10.3390/cryst2041434

来源: mdpi

【 摘 要 】

Piperidinium copper(I) bromide, (C₅H₁₂N)Cu₂Br₃, was obtained from a solution of CuBr₂, piperidine, and HBr in ethanol. At 60 °C ethanol slowly reduces copper(II) to copper(I). Colorless plates of (C₅H₁₂N)Cu₂Br₃ crystallize in the triclinic space group P-1 with lattice parameters of a = 6.2948(10) Å, b = 8.2624(14) Å, c = 10.7612(17) Å, α = 75.964(19)°, β = 89.232(19)°, γ = 84.072(19)°, and Z = 2 at 173 K. [CuBr₄] tetrahedra share edges and form [Cu₂Br₃]⁻ ladders parallel to the a-axis. (C₅H₁₂N)⁺ ions adopt a chair conformation and connect the [Cu₂Br₃]⁻ ladders via H-bonding. The (C₅H₁₂N)Cu₂Br₃ structure is related to the mineral rasvumite, KFe₂S₃, space group Cmcm, which is isostructural to several alkali copper(I) halides.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.