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贵金属铑和铱的电子结构和物理性质
引用本文:谢佑卿,杨昕昕,彭坤.贵金属铑和铱的电子结构和物理性质[J].贵金属,2001,22(4):7-12.
作者姓名:谢佑卿  杨昕昕  彭坤
作者单位:中南大学材料科学与工程系,
摘    要:应用纯金属单原子(OA)理论确定了面心立方(fcc)结构贵金属Rh和Ir的电子结构分别为Kr](4dn)∧6.7400(5sc)∧0.0000(5sf)∧0.3600和Xe](5dn)∧0.7100(5dc)∧7.2900(6sc)∧0.2700(6sf)∧0.7300,并计算了它们的热能曲线、晶格常数、结合能、弹性和膨胀系数随温度的变化,另外对其体心立方(bcc),密排六方(hcp)结构初态特征晶体和初态液体的电子结构进行了研究。从而提供了不同晶体结构Rh和Ir的结构参数和性能参数,为Rh和Ir金属元素及其相关材料的理论设计提供了完整的数据资料。

关 键 词:电子结构  晶格常数  结合能      材料设计
文章编号:1004-0676(2001)04-0007-06

Electronic Structures and Physical Properties of Rhodium and Iridium
Xie Youqing,Yang Xinxin,Peng Kun.Electronic Structures and Physical Properties of Rhodium and Iridium[J].Precious Metals,2001,22(4):7-12.
Authors:Xie Youqing  Yang Xinxin  Peng Kun
Abstract:The electronic structures of rhodium and iridium with fcc structure determined by single atom theory(OA)of pure metal are4d n) 1 900 (4d c) 6 7400 (5s c) 0 0000 (5s f) 0 3600 and Xe( 5d n) 0 7100 (5d c) 7 2900 (6s c) 0 2700 (6s f) 0 7300 ,respectively.Their potential and bond energies,lattic constants,elasticities and coefficients of expansion were calculated.The electronic structures of the initial characteristic crystal and liquid of rhodium and iridium with bcc and hcp structures were studied also.The parameters of rhodium and iridium with different crystal structures were provided.
Keywords:Rhodium  Iridium  Electronic structure  Lattice constant  Bonding energy
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