24小时热门版块排行榜    

查看: 1019  |  回复: 2

1989shaonan

金虫 (小有名气)

[求助] 求助:PCM “tessalation”怎么描述?

采用pcm优化构型,审稿人提问让给出pcm的“tessalation”。我觉得可能指的是“tesselation”。

gaussian03软件只给出了tsare=area 的默认值0.2,但没有给出tsnum的默认值,网上一些资料提到tsnum默认是60,不知是否如此?

非常感谢帮助!
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

paramecium86

版主 (著名写手)

老版本的高斯的手册里会提到 默认的TSNUM是60.

高斯手册的原文
SELECTING THE POLYDEDRON FOR THE SURFACE TESSERAE

In standard calculations the surface of each sphere is subdivided in 60 triangular tesserae, by projecting the faces of an inscribed pentakisdodecahedron. Other polyhedra with a different number of faces can be used, to get rougher or finer descriptions of the surface, by using one of these keywords:

TSNUM=N       
Sets the number of tesserae on each sphere (60 is the default for the usual pentakisdodecahedron). The program automatically selects the polyhedron with the closest number of faces to the specified value of N.

TSARE=area       
Specifies the area of the tesserae, in units of Å2 (0.4 is a typical value). The program automatically determines the best polyhedron for each sphere.

EXAMPLE PCM INPUT

The following Gaussian job performs a PCM energy calculation on the molecule HF using the solvent cyclohexane. The calculation is performed at a temperature of 300 K using a scaling factor for all atoms except acidic hydrogens of 1.21 and a value of 70 tesserae per sphere:

#
HF/6-31++G(d,p) SCF=Tight SCRF=(PCM,Read,Solvent=Cyclohexane) Test  
PCM SP calculation on hydrogen fluoride  

0,1
H
F 1 R  

R=0.9161  

TABS=300.0
ALPHA=1.21
TSNUM=70   

manual的链接

http://www.uam.es/departamentos/ ... sian98/00000474.htm
2楼2019-07-09 21:03:59
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

1989shaonan

金虫 (小有名气)

引用回帖:
2楼: Originally posted by paramecium86 at 2019-07-09 21:03:59
老版本的高斯的手册里会提到 默认的TSNUM是60.

高斯手册的原文
SELECTING THE POLYDEDRON FOR THE SURFACE TESSERAE

In standard calculations the surface of each sphere is subdivided in 60 triangular  ...

谢谢!
3楼2019-07-10 10:16:51
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 shaonan 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
[基金申请] 2026国自然函评费到账 +9 羊腰板 2026-08-21 9/450 2026-08-22 00:03 by anji999
[基金申请] 放榜前的不淡定 40+4 snowwithsea 2026-08-19 14/700 2026-08-21 23:51 by cratir
[基金申请] 建议基金发布提前给出明确的时间点 +10 kulium 2026-08-21 13/650 2026-08-21 21:58 by alongwaytogo
[基金申请] 今日不放榜?网传国自然预计 8 月 27 日可查结果 +16 医学老男孩 2026-08-20 20/1000 2026-08-21 21:13 by Ldrop2023
[基金申请] 看来今天不会放榜了? +8 chengyan1220 2026-08-21 11/550 2026-08-21 17:52 by dcqxinyang
[基金申请] 时间戳又变了 +13 wuchongjun 2026-08-20 19/950 2026-08-21 17:21 by 紫杉醇
[基金申请] 让我中一个面上吧! +11 大萍1987 2026-08-20 13/650 2026-08-21 14:48 by 20120902066
[基金申请] 感觉是下周放榜了 +7 angus9576 2026-08-17 12/600 2026-08-21 13:38 by weiyin
[基金申请] 我面上完蛋了 +7 且听虎啸 2026-08-20 8/400 2026-08-21 12:31 by 酷酷墨镜
[基金申请] 只有每年这种时候来逛逛小木虫 +23 yaoyewhu2008 2026-08-20 25/1250 2026-08-21 12:19 by Poppy1104
[基金申请] 什么时候开奖? +7 CrisMessi 2026-08-18 7/350 2026-08-21 12:15 by weiyin
[基金申请] 时间戳又变了8-15 +15 archvillain 2026-08-15 27/1350 2026-08-21 11:32 by tim76
[基金申请] 今天基金会出结果吗?20260819 +15 kkkl_v 2026-08-19 16/800 2026-08-21 11:22 by 365372687
[基金申请] 今天放榜没戏了吧 +9 yuleib84 2026-08-19 11/550 2026-08-21 10:06 by gltch
[基金申请] 基金啊基金 +4 longfie172 2026-08-20 4/200 2026-08-21 08:58 by mark mao
[基金申请] 时间戳今天,20号变了 +4 archvillain 2026-08-20 4/200 2026-08-21 08:10 by gatelove
[基金申请] 今天系统多次维护,明天很可能放榜! +10 zju2000 2026-08-16 11/550 2026-08-20 20:02 by cl479861084
[基金申请] 2027广东省杰青 +4 奶牛小黑 2026-08-15 10/500 2026-08-19 11:02 by wanfengnew
[基金申请] 明天放榜? +5 Shxjjxjkx 2026-08-18 5/250 2026-08-18 18:14 by -大大大大大-
[基金申请] 今天维护系统维护 祝所有人 高中 +8 gjjjzhong 2026-08-18 9/450 2026-08-18 13:01 by 家与远方
信息提示
请填处理意见