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Weak Interactions under Pressure: hp-CuBi and Its Analogues

MPG-Autoren
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Guo,  Kai
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Akselrud,  Lev
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Bobnar,  Matej
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Burkhardt,  Ulrich
Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Schmidt,  Marcus
Marcus Schmidt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Schwarz,  Ulrich
Ulrich Schwarz, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Grin,  Yuri
Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Zitation

Guo, K., Akselrud, L., Bobnar, M., Burkhardt, U., Schmidt, M., Zhao, J.-T., et al. (2017). Weak Interactions under Pressure: hp-CuBi and Its Analogues. Angewandte Chemie International Edition in English, 56(20), 5620-5624. doi:10.1002/anie.201700712.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-002C-F63C-8
Zusammenfassung
The metastable binary compound hp-CuBi was obtained from the direct chemical reaction between copper and bismuth at a pressure of 5 GPa and a temperature of 720 K. The atomic arrangement comprises slabs of puckered Cu layers sandwiched between Bi planes. The QTAIM charges calculated for compounds of bismuth with transition metals reveal negligible charge transfer for hp-CuBi. Analysis of the chemical bonding with position-space techniques discloses multicenter interactions within the Bi-Cu-Bi slabs and lone-pair interactions of the van der Waals type between these entities. hp-CuBi exhibits metal-type electrical conductivity with superconductivity below Tc=1.3 K.