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fwang2011金蟲 (小有名氣)
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[求助]
請教:算C101H204S2的優(yōu)化結(jié)構(gòu),該用什么BASIS
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謝謝。 基于下面的簡述,STO-3G應(yīng)該可以的。 3-21G是不是更好?how about 6-31G(d)? Common Basis Sets Brief Description of Standard Basis Sets • Many other sets are in use. Existing sets can be modified Basis Set Description STO-3G Minimal basis; qualitative results - large systems 3-21G Double ζ; more accurate results on large systems 6-31G(d) Moderate set; Common use for medium systems 6-31G(d,p) Used where H is site of interest; More accurate 6-31+G(d) Used with anions, excited states, lone pairs, etc. 6-31+G(d,p) Used with anions, etc., where H is site of interest 6-311++G(d,p) Good for final, accurate energies, but expensive |
找到一些相關(guān)的精華帖子,希望有用哦~
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