HIGH YIELD SYNTHESIS METHODS FOR PRODUCING ORGANIC SALTS OF STRONTIUM
申请人:Christgau Stephan
公开号:US20090137678A1
公开(公告)日:2009-05-28
New organic salts of strontium and methods of synthesizing such salts with high purity, high yields and with short processing times, at neutral conditions and at low reaction temperature, such as a temperature at or below 50° C.
Stabilization of the Mixed Valence Cu(III)/Cu(IV) in the Perovskite Lattice of La1-xSrxCuO3 under High Oxygen Pressure
作者:S. Darracq、S.G. Kang、J.H. Choy、G. Demazeau
DOI:10.1006/jssc.1995.1013
日期:1995.1
A new mixed valence Cu(III)/Cu(IV) has been stabilized in the three-dimensional lattice of the perovskite-type oxide La1-xSrxCuO3 (0 ≤ x ≤ 0.25). Chemical analysis and XPS studies confirm the mixed valence. This compound shows metallic properties with a broadening of the conduction band compared to that of LaCuO3. Such behavior can be explained either by the increase of the covalence of the average
一种新的混合价铜(III)/铜(IV)已经在钙钛矿型氧化物的三维晶格被稳定的La 1- X的Sr X的CuO 3(0≤ X ≤0.25)。化学分析和XPS研究证实了混合价。与LaCuO 3相比,该化合物具有导带扩宽的金属特性。可以通过增加平均Cu-O键的共价或通过减少Sr(II)代替La(III)引起的结构变形来解释这种行为。在温度低至4 K的材料中未检测到超导特性。
Ghandour, Mahmoud A.; Mansour, Hesham; Abu El-Wafa, Moustafa H. M., Journal of the Indian Chemical Society, 1988, vol. 65, p. 716 - 718
作者:Ghandour, Mahmoud A.、Mansour, Hesham、Abu El-Wafa, Moustafa H. M.、Khodary, Mahmoud