24小时热门版块排行榜    

查看: 510  |  回复: 0

jin9090900

铜虫 (小有名气)

[求助] 重金属配合物的量化计算方法实现交流

4f电子计算收敛还是比较困难的,最近想挑战一下稀土配合物的量化计算。阅读了大量的量化文献。其中有一篇最为经典,为了在Gaussian中复现该文献内容,想跟大家做个交流。
Inorganic Chemistry, 38,6 1999
其中描述了有机物与稀土离子间的作用,其中量化计算的方法描述为:

The QM ab initio calculations were performed at the HF level using the Gaussian-94 package.52 The 46 + 4fn core electrons of the lanthanide cations were described by the quasi relativistic pseudopotential of Dolg et al.,53,54 and and the valence electrons, by a (7s,6p,5d)/[5s,4p,3d] Gaussian basis set supplemented by one f polarization function of exponent 0.591 as optimized for La by Frenking et al.55 This exponent was kept for the whole series of lanthanides. Calculations on the Eu3+‚‚‚OPH3 system, using a smaller core of 28 electrons for the pseudopotential (i.e. including the 4s, 4p, 4d, and 4f electrons in the valence space), showed that the use of a large core pseudopotential for our purpose is satisfactory.  The H, C, N, O, and P atoms were described by the standard Dunning-Hay double-zeta basis set 57 adding one 3d polarization function on the P atom of exponent zeta3d= 0.37 (referred to hereafter as “DZ” basis set). In some additional test calculations, polarization functions on the atoms of L were also added (exponents being zeta3dC= 0.75, zeta3dO= 0.85, zeta3dN= 0.80, and zeta2pH= 0.80), leading to the DZ* basis set.

那么,为了实现这一过程,我想可以通过混合基组来实现。查阅了相应的基组用户手册,
文献说HCNOP用Dunning-Hay double-zeta basis set。对应的关键词是D95V或者D95加入极化函数,应该为D95V*或者D95。这个没什么问题。
对于4f金属离子用quasi relativistic pseudopotential方法,属于SDD基组,那么对于小核赝势为MWB28,对于大核赝势为MWB46~60(分别La~Lu)。但是根据文献描述的说采用了 (7s,6p,5d)/[5s,4p,3d] Gaussian basis set supplemented by one f polarization function of exponent 0.591。那么这部分的基组该如何描述呢?

谢谢大家!
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 jin9090900 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 302求调剂 +10 呼呼呼。。。。 2026-03-17 10/500 2026-03-18 12:45 by Linda Hu
[考研] 281求调剂(0805) +4 烟汐忆海 2026-03-16 11/550 2026-03-18 11:57 by djl2006
[考研] 299求调剂 +5 △小透明* 2026-03-17 5/250 2026-03-18 11:49 by 尽舜尧1
[考研] 0703化学336分求调剂 +6 zbzihdhd 2026-03-15 7/350 2026-03-18 09:53 by zhukairuo
[考研] 268求调剂 +6 简单点0 2026-03-17 6/300 2026-03-18 09:04 by 无际的草原
[考研] 311求调剂 +10 冬十三 2026-03-15 11/550 2026-03-18 09:04 by zhukairuo
[考研] 296求调剂 +5 大口吃饭 身体健 2026-03-13 5/250 2026-03-17 21:05 by 不惑可乐
[考研] 302求调剂 +9 负心者当诛 2026-03-11 9/450 2026-03-17 17:13 by ruiyingmiao
[考研] 293求调剂 +6 世界首富 2026-03-11 6/300 2026-03-17 17:04 by ruiyingmiao
[考研] 267一志愿南京工业大学0817化工求调剂 +6 SUICHILD 2026-03-12 6/300 2026-03-17 09:24 by 雾散后相遇lc
[基金申请] 国自科面上基金字体 +6 iwuli 2026-03-12 7/350 2026-03-16 21:18 by sculhf
[考研] 070303一志愿西北大学学硕310找调剂 +5 d如愿上岸 2026-03-12 8/400 2026-03-16 15:19 by peike
[考研] 机械专硕调剂 +3 笨笨兔子 2026-03-12 3/150 2026-03-15 20:02 by 栗子粥?
[考研] 085601材料工程315分求调剂 +3 yang_0104 2026-03-15 3/150 2026-03-15 10:58 by peike
[考研] 本科南京大学一志愿川大药学327 +3 麦田耕者 2026-03-14 3/150 2026-03-14 20:04 by 外星文明
[基金申请] 现在如何回避去年的某一个专家,不知道名字 +3 zk200107 2026-03-12 6/300 2026-03-14 17:13 by zk200107
[考研] 学硕285求调剂 +13 Wisjxn 2026-03-12 46/2300 2026-03-14 10:33 by JourneyLucky
[考研] 求材料调剂 +5 隔壁陈先生 2026-03-12 5/250 2026-03-13 22:03 by 星空星月
[考研] 材料301分求调剂 +5 Liyouyumairs 2026-03-12 5/250 2026-03-13 14:42 by JourneyLucky
[考研] 277求调剂 +4 anchor17 2026-03-12 4/200 2026-03-13 11:15 by 白夜悠长
信息提示
请填处理意见