Weak Interactions under Pressure: hp-CuBi and Its Analogues.
Angew Chem Int Ed Engl
; 56(20): 5620-5624, 2017 05 08.
Article
em En
| MEDLINE
| ID: mdl-28370908
ABSTRACT
The metastable binary compound hp-CuBi was obtained from the direct chemical reaction between copper and bismuth at a pressure of 5â
GPa and a temperature of 720â
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 =1.3â
K.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
China