Stuck in Our Teeth? Crystal Structure of a New Copper Amalgam, Cu3Hg
Department Chemie, LMU München, Butenandtstraße 5-13(D), D-81377 München, Germany
Author to whom correspondence should be addressed.
Academic Editor: Matthias Weil
Received: 23 October 2017 / Revised: 20 November 2017 / Accepted: 22 November 2017 / Published: 24 November 2017
We have synthesized a new Cu amalgam, the Cu-rich phase Cu
Hg. It crystallizes with the Ni
Sn structure type with a hexagonal unit cell (space group P
= 5.408(4) Å, c
= 4.390(3) Å) and shows some mixed occupancy of Cu on the Hg site, resulting in a refined composition of Cu
. This is the first example of an amalgam with the Ni
Sn structure type where Hg is located mainly on the Sn site. Cu
Hg might be one of the phases constituting dental amalgams and therefore has major relevance, as well as the only Cu amalgam phase described so far, Cu
-brass structure. It occurs as a biphase in our samples. Thermal decomposition of Cu amalgam samples in a dynamic vacuum yields nanostructured copper networks, possibly suitable for catalytic applications.
This is an open access article distributed under the Creative Commons Attribution License
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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MDPI and ACS Style
Sappl, J.; Freund, R.; Hoch, C. Stuck in Our Teeth? Crystal Structure of a New Copper Amalgam, Cu3Hg. Crystals 2017, 7, 352.
Sappl J, Freund R, Hoch C. Stuck in Our Teeth? Crystal Structure of a New Copper Amalgam, Cu3Hg. Crystals. 2017; 7(12):352.
Sappl, Jonathan; Freund, Ralph; Hoch, Constantin. 2017. "Stuck in Our Teeth? Crystal Structure of a New Copper Amalgam, Cu3Hg." Crystals 7, no. 12: 352.
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