5 years ago

Synthesis of a Cu-Filled Rh17S15 Framework: Microwave Polyol Process Versus High-Temperature Route

Synthesis of a Cu-Filled Rh17S15 Framework: Microwave Polyol Process Versus High-Temperature Route
Anna Isaeva, Yurii Prots, Marc Uhlarz, Michael Ruck, Thomas Herrmannsdörfer, Lars Opherden, Thomas Doert, Alexey I. Baranov, Maria Roslova, Mauro Coduri, Joachim Wosnitza, Pavlo Golub, Alexander Ovchinnikov
Metal-rich Cu3Rh34S30 was synthesized by a microwave-assisted soft-chemistry route. The crystal structure is derived from Rh17S15 by filling of the Rh-enclosed cubic voids. The DOS at the Fermi level is strongly reduced in comparison with Rh17S15 and entails disruption of long-range Rh−Rh interactions in favor of Cu−Rh interactions, which triggers suppression of superconductivity. The bonding situation of the copper atoms resembles that in copper metal despite the presence of the Rh−S framework.

Publisher URL: http://dx.doi.org/10.1021/acs.inorgchem.7b01102

DOI: 10.1021/acs.inorgchem.7b01102

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