Madrigal 发表于 2025-3-30 09:26:57
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Correlation Contributions from Density Functionals,y Hohenberg and Kohn (1964) and much progress has been made along this line (see, e.g., the contributions of Becke, Levy, or Parr to this volume). On the other hand, it is well-known that wave-functions can be improved systematically by increasing the number of Slater determinants used. Several atte辩论 发表于 2025-3-31 02:47:05
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http://reply.papertrans.cn/27/2657/265622/265622_59.pngSenescent 发表于 2025-3-31 22:55:39
https://doi.org/10.1007/978-3-322-83494-2 gas phase. The ground state is calculated to have .E symmetry and the first excited state .A.. symmetry. Further calculations of low lying states of Fe(II)porphine show that both singlet and quintet spin states are higher in energy.