...
首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >On new ternary equiatomic scandium transition metal aluminum compounds ScTAl with T = Cr, Ru, Ag, Re, Pt, and Au
【24h】

On new ternary equiatomic scandium transition metal aluminum compounds ScTAl with T = Cr, Ru, Ag, Re, Pt, and Au

机译:T = Cr,Ru,Ag,Re,Pt和Au的新三元等原子scan过渡金属铝化合物ScTAl

获取原文
获取原文并翻译 | 示例
           

摘要

The new equiatomic scandium transition metal aluminides ScTAl for T = Cr, Ru, Ag, Re, Pt, and Au were obtained by arc-melting of the elements followed by subsequent annealing for crystal growth. The samples were studied by powder and single crystal X-ray diffraction. The structures of three compounds were refined from-single crystal X-ray diffractometer data: ScCrAl, MgZn2 type, P6(3)/mmc, alpha = 525.77(3), c = 858.68(5) pm, R-1 = 0.0188, wR(2) = 0.0485, 204 F-2 values, 13 variables, ScPtAl, TiNiSi type, Pnma, alpha = 642.83(4), b = 428.96(2), c = 754.54(5) pm, R-1 = 0.0326, wR(2) = 0.0458, 448 F-2 values, 20 variables and ScAuAl, HfRhSn type, P (6) over bar 2c, alpha = 722.88(4), c = 724.15(4) pm, R-1 = 0.0316, wR(2) = 0.0653, 512 F-2 values, 18 variables. Phase pure samples of all compounds were furthermore investigated by magnetic susceptibility measurements, and Pauli-paramagnetism but no superconductivity was observed down to 2.1 K for all of them. The local structural features and disordering phenomena have been characterized by Al-27 and Sc-45 magic angle spinning (MAS) and static NMR spectroscopic investigations.
机译:T = Cr,Ru,Ag,Re,Pt和Au的新的等原子scan过渡金属铝化物ScTAl是通过元素的电弧熔融,随后的退火以进行晶体生长而获得的。通过粉末和单晶X射线衍射研究样品。从单晶X射线衍射仪数据中精制了三种化合物的结构:ScCrAl,MgZn2型,P6(3)/ mmc,α= 525.77(3),c = 858.68(5)pm,R-1 = 0.0188, wR(2)= 0.0485,204个F-2值,13个变量,ScPtAl,TiNiSi类型,Pnma,alpha = 642.83(4),b = 428.96(2),c = 754.54(5)pm,R-1 = 0.0326 ,wR(2)= 0.0458、448个F-2值,20个变量和ScAuAl,HfRhSn类型,在条形图2c上的P(6),alpha = 722.88(4),c = 724.15(4)pm,R-1 = 0.0316 ,wR(2)= 0.0653,512个F-2值,18个变量。此外,还通过磁化率测量研究了所有化合物的纯相样品,并在低至2.1 K的条件下未观察到保利顺磁性,但未观察到超导性。局部结构特征和无序现象已通过Al-27和Sc-45魔角旋转(MAS)和静态NMR光谱研究进行了表征。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号