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Relativistic and electron correlation corrections to geometric structures and stabilities of dimers (M2Te)2, (M=Au,Ag,Cu)
Author(s): QI Musurong, ZHAO Yongfang, JING Xiaogong, LI Xinying, QIN Yanli
Pages: 425-
431
Year: 2004
Issue:
3
Journal: JOURNAL OF ATOMIC AND MOLECULAR PHYSICS
Keyword: 二聚物; 重金属团簇; 电子相关效应; 相对论效应;
Abstract: 使用相对论和非相对论赝势,在HF和MP2理论水平上详细研究了电子相关效应和相对论效应对含重金属铜、银和金的二聚物(M2Te)2,(M=Au,Ag,Cu)的几何构型和稳定性的影响.结果显示,电子相关效应缩短二聚物的金属-金属键长和金属-碲键长、提高振动频率、降低能量,使二聚物的结构变得较为刚性和紧凑;相对论效应加强了它的强度,使二聚物更加稳定.
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