首页> 外文期刊>The Journal of Chemical Physics >Contracted Gaussian basis sets for Douglas—Kroll—Hess calculations:Estimating scalar relativistic effects of some atomic and molecularproperties
【24h】

Contracted Gaussian basis sets for Douglas—Kroll—Hess calculations:Estimating scalar relativistic effects of some atomic and molecularproperties

机译:道格拉斯—克罗尔—黑斯计算的压缩高斯基集:估计某些原子和分子性质的标量相对论效应

获取原文
获取原文并翻译 | 示例
           

摘要

Douglas–Kroll–Hess (DKH) contracted Gaussian basis sets of double, triple, and quadruple zetavalence qualities plus polarization functions (XZP, X=D, T, and Q, respectively) for the atoms H–Arand DZP and TZP for K–Kr are presented. They have been determined from the correspondingnonrelativistic basis sets generated previously by Jorge et al. We have recontracted the original XZPbasis sets, i.e., the values of the contraction coefficients were reoptimized using the relativistic DKHHamiltonian. The effect of DKH at the coupled-cluster level of theory on the ionization energy ofsome atoms and dissociation energy and geometric parameters for a sample of molecules isdiscussed. Our results were compared with theoretical and experimental values reported in theliterature.
机译:道格拉斯·克罗尔·黑斯(DKH)收缩了高斯基组的双,三和四重Zeta价性质以及原子H–Arand DZP和TZP的极化函数(分别为XZP,X = D,T和Q)。提出了r。它们是由Jorge等人先前生成的相应的非相对论基础集确定的。我们已经将原始的XZPbasis集重新收缩,即使用相对论的DKHHamiltonian重新优化了收缩系数的值。讨论了DKH在耦合簇理论水平上对一些原子的电离能,离解能和分子样品的几何参数的影响。我们的结果与文献报道的理论和实验值进行了比较。

著录项

相似文献

  • 外文文献
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