Poly[di-ethyl-ammonium [tetra-μ2-cyanido-κ8 C: N-tricuprate(I)]], a two-dimensional network solid

Peter W R Corfield; Thomas James Stavola

doi:10.1107/S2414314620009682

Poly[di-ethyl-ammonium [tetra-μ₂-cyanido-κ⁸ C: N-tricuprate(I)]], a two-dimensional network solid

IUCrdata. 2020 Jul 21;5(Pt 7):x200968. doi: 10.1107/S2414314620009682. eCollection 2020 Jul.

Authors

Peter W R Corfield¹, Thomas James Stavola¹

Affiliation

¹ Department of Chemistry, Fordham University, 441 East Fordham Road, Bronx, NY 10458, USA.

Abstract

The title compound, (C₄H₁₂N)[Cu₃(CN)₄] _n , crystallizes as a CuCN network solid, with di-ethyl-ammonium cations sandwiched between planar CuCN sheets comprised of trigonal planar and digonally coordinated Cu^I atoms bridged by linear CN groups to form 24-membered rings. The digonally coordinated Cu^I atoms and the di-ethyl-ammonium cations lie on separate crystallographic twofold rotation axes. One of the two independent CN groups has a 50:50 disordered orientation, while the other has one orientation favored due to a N-H⋯NC hydrogen bond between the di-ethyl-ammonium cation and the anionic CuCN framework. These hydrogen bonds link the sheets together into a three-dimensional network.

Keywords: copper cyanide; crystal structure; diethylammonium; hydrogen bond; network; two-dimensional framework.