کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1329197 978894 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High pressure induced coordination evolution in chain compound Li2CuO2
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
High pressure induced coordination evolution in chain compound Li2CuO2
چکیده انگلیسی

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.

Li2CuO2 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 as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Solid State Chemistry - Volume 182, Issue 11, November 2009, Pages 3085–3090
نویسندگان
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