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贺仪

铁杆木虫 (著名写手)

[求助] GAUSSIAN怎么计算overlap matrix?

本人非专业GAUSSIAN使用者,请问GAUSSIAN怎么计算overlap matrix , molecular orbital coefficients and energies ?如果可以,请列出输入文件,谢谢!

F0= SCC
,没法显示……
where S is the intermolecular overlap matrix, and C and 
are the dimer Kohn-Sham orbital’s coefficients and energies.
The noninteracting molecular orbitals of the two individual
molecules are calculated separately by the standard self-
consistent field procedure. These noninteracting orbitals are
then used to construct the dimer Kohn-Fock matrix. Namely,
it takes directly the unperturbed individual molecule’s orbital
and density matrix to guarantee that originally, the two mol-
ecules are noninteracting, and only when putting them to-
gether, one can get interaction information with respect to
the individual molecules in the spirit of first-order perturba-
tion. All of the calculations are performed with the GAUSSIAN
03 package

详细的请看PHYSICAL REVIEW B 79, 115203 2009

[ Last edited by 贺仪 on 2011-10-17 at 16:20 ]
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jiewei

专家顾问 (著名写手)

小才

【答案】应助回帖

贺仪(金币+5): 这个会了,现在就想学一下高斯怎么算…… 2011-10-17 15:04:55
引用回帖:
5楼: Originally posted by 贺仪 at 2011-10-17 14:45:48:
按照你们的方法算出来的是一个体系不同轨道间的overlap,还不一样。
我想计算的两个分子homo之间的overlap integral,可能是我没说清楚吧……
那能不能算两个分子homo之间的overlap integral呢?在计算结果中怎 ...

如果同monomer:
ADF can also calculate transfer integrals based on the direct method by the use of its unique fragment approach
高斯不行,只能构型猜测,然后能级劈裂法
非monomer,编程吧
我想做个科学家,可我又喜欢写诗;我想做一个诗人,可我却读的理工科..
6楼2011-10-17 15:00:38
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