Package: cp2k
Version: 2.2.426-1
Severity: serious
Tags: patch

A problem has been been found today with the 6-31++G** version of the
standard EMSL basis sets, which will lead to wrong results.

The problem has been fixed in upstream revision 12850:

http://sourceforge.net/p/cp2k/code/12850/


Michael

On Fri, Apr 19, 2013 at 10:49:14AM +0200, hut...@pci.uzh.ch wrote:
> Dear Frank
> 
> thank you very much for pointing out this problem. All basis
> sets in EMSL_BASIS_SETS of the 6-31++G** type are missing the 
> difuse set, meaning they are identical to 6-31G**. 
> I think the 6-311++G** sets are correct. We will have to
> correct this.
> 
> best regards
> 
> Juerg 
> 
> --------------------------------------------------------------
> Juerg Hutter                         Phone : ++41 44 635 4491
> Physical Chemistry Institute   FAX   : ++41 44 635 6838
> University of Zurich               E-mail:  hut...@pci.uzh.ch
> Winterthurerstrasse 190
> CH-8057 Zurich, Switzerland
> ---------------------------------------------------------------
> 
> -----c...@googlegroups.com wrote: -----
> To: c...@googlegroups.com
> From: Frank Uhlig 
> Sent by: c...@googlegroups.com
> Date: 04/19/2013 09:56AM
> Subject: [CP2K:4380] Inconsistency in EMSL basis sets (missing basis function 
> in oxygen 6-31++G** basis set)
> 
> Dear CP2K'lers,
> 
> I was performing a  test calculation on a water dimer with 
> CP2K/B3LYP/6-31++G** setup and observed a 40% relative error in the 
> interaction energy compared to different "traditional" quantum chemistry 
> package. After a long and tedious search for the inconsistency in my setup, I 
> found that there is a basis function function missing in the CP2K provided 
> basis set file (SP, exponent 0.0845000) compared to the one directly provided 
> on the EMSL web page (see below). After including latter in the CP2K basis 
> set definition, the relative error in the interaction energy for the water 
> dimer is smaller than 1%, which is of course more than acceptable.
> 
> Is there any specific reason for this inconsistency? I have not checked all 
> the basis sets, but also for the fluorine 6-31++G** basis set one basis 
> function is missing compared to EMSL. 
> 
> Cheers,
> 
> Frank
> 
> from EMSL_BASIS_SETS:
> 
> O  6-31++Gxx 6-31++G**
>   4
>   1  0  0  6  1
>        5484.67170000          0.00183110
>         825.23495000          0.01395010
>         188.04696000          0.06844510
>          52.96450000          0.23271430
>          16.89757000          0.47019300
>           5.79963530          0.35852090
>   1  0  1  3  1  1
>          15.53961600         -0.11077750          0.07087430
>           3.59993360         -0.14802630          0.33975280
>           1.01376180          1.13076700          0.72715860
>   1  0  1  1  1  1
>           0.27000580          1.00000000          1.00000000
>   1  2  2  1  1
>           0.80000000          1.00000000
> 
> directly from EMSL basis set exchange (NWChem format):
> 
> BASIS "ao basis" PRINT
> #BASIS SET: (11s,5p,1d) -> [4s,3p,1d]
> O    S
>    5484.6717000              0.0018311        
>     825.2349500              0.0139501        
>     188.0469600              0.0684451        
>      52.9645000              0.2327143        
>      16.8975700              0.4701930        
>       5.7996353              0.3585209        
> O    SP
>      15.5396160             -0.1107775              0.0708743        
>       3.5999336             -0.1480263              0.3397528        
>       1.0137618              1.1307670              0.7271586        
> O    SP
>       0.2700058              1.0000000              1.0000000        
> O    SP
>       0.0845000              1.0000000              1.0000000        
> O    D
>       0.8000000              1.0000000        
> END
> 
> 
> 
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