Article ID Journal Published Year Pages File Type
1329197 Journal of Solid State Chemistry 2009 6 Pages PDF
Abstract

Using diamond anvil cell technique with angle dispersive X-ray diffraction (ADXD) of synchrotron radiation and electrical conductivity measurements, we have observed that CuO2 chain compound Li2CuO2 transforms from ambient orthorhombic symmetry into a new phase at above 5.4 GPa and room temperature. The new phase was found to be of monoclinic structure with an increased oxygen coordination number of Cu2+ from four at ambient to six at high pressure that provides a structural basis of the evolution of principle physical properties. The high pressure phase of Li2CuO2 is discussed in line with the first principle calculations.

Graphical abstractLi2CuO2 undergoes a first-order transition from the ambient orthorhombic to a monoclinic phase at above 5.4 GPa with coordination change from four-square to six-octahedron.Figure optionsDownload full-size imageDownload as PowerPoint slide

Related Topics
Physical Sciences and Engineering Chemistry Inorganic Chemistry
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