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目前显示的是标签为“Crystal Structure”的博文

A Chiral Three Dimensional Potassium(I)/Strontium(II)/Chromium(III) Oxalato-Bridged Coordination Polymer: Synthesis, Characterization and Thermal Analysis

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52558#.VJtsjcCAM4 Author(s) Justin Nenwa 1 , Issoufou Kaboré 1 , Yves A. Mbiangué 2 , Patrick L. Djonwouo 1 , Peter T. Ndifon 1 Affiliation(s) 1 Department of Inorganic Chemistry, University of Yaounde 1, Yaounde, Cameroon . 2 Chemistry Department, Higher Teachers’ Training College, University of Maroua, Maroua, Cameroon . ABSTRACT A new compound of general formula {[(H 2 O) 2 K(μ-H 2 O)Sr] @ [Cr(C 2 O 4 ) 3 ]} n (1) has been synthesized in water and characterized by elemental and thermal analyses, EDX, IR and UV-Vis spectroscopies and by single crystal X-ray structure determination. Compound 1 crystallizes in the chiral space...

Structure and Electrical Properties of Fe2O3-Doped PZT-PZN-PMnN Ceramics

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=49017#.VJerXcCAM4 Author(s) Le Dai Vuong , Phan Dinh Gio Affiliation(s) Department of Physics, College of Sciences, Hue University, Hue City, Vietnam . Department of Physics, College of Sciences, Hue University, Hue City, Vietnam . ABSTRACT The 0.8Pb(Zr 0.48 Ti 0.52 )O 3 – 0.125Pb(Zn 1/3 Nb 2/3 )O 3 – 0.075Pb(Mn 1/3 Nb 2/3 )O 3 + x wt% Fe 2 O 3 ceramics (PZT-PZN-PMnN), where x = 0 ÷  0.35, has been prepared by two-stage calcination method. The effect of Fe 2 O 3 content on the crystal structure and electrical properties of ceramics has been investigated. The results of X-ray diffraction (XRD) show that all samples have pure...