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superrice

木虫 (正式写手)

[求助] 小弟最近想学习MRCI,看到文献上有些不懂,特来请教。

The active space included the 34 highest occupied and 34 lowest unoccupied orbitals for singly excited determinants and the 6 highest occupied orbitals and 6 lowest unoccupied p-orbitals (the LUMO through LUMO+4 and the LUMO+7) for double excitations. The reference determinants comprised the SCF determinant,
the HOMO---> LUMO, HOMO-1--->LUMO, and HOMO--->LUMO+1 singly-excited determinants, as well as the (HOMO,HOMO)--->(LUMO, LUMO) doubly excited determinant.

请问这前一句话意思是cas(68,68)和cas(12,12)吗?那后一句话是什么意思呢?请高手赐教,谢谢。
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beefly

专家顾问 (职业作家)

地沟油冶炼专家

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gmy1990: 金币+2 2013-10-09 02:26:28

chembetsey

木虫 (小有名气)

【答案】应助回帖

感谢参与,应助指数 +1

chembetsey

木虫 (小有名气)

【答案】应助回帖

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gmy1990: 金币+3 2013-10-09 02:26:11
superrice: 金币+10, 有帮助 2013-10-09 08:35:50

superrice

木虫 (正式写手)

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