[CP2K:1581] Re: Isotopic dilution study

irti irtazah... at gmail.com
Tue Feb 20 19:52:08 UTC 2018


Dear Teo,

Hi, kind section for D does not seems to work in QMMM setup. I am trying to 
set up QMMM simulation for di-peptide in D2O and also I want to deuterate 
certain H atoms of dipeptide.  

After preparing coorinates and topology file with AMBER tools, I have 
modifiled it with PARMED . CP2K reads the topology correctly with masses as 
intended for dipeptide (also D2O) in the FIST module. But in the Quickstep 
and QM section of QMMM _QM_ atoms which are deuterated in the MM does seem 
to be not deuterated.


For example (copied from the output file)

MODULE FIST:  ATOMIC COORDINATES IN ANGSTROM

  Atom  Kind  ATM_TYP       X           Y           Z          q(eff)       
Mass

     1    1   _QM_       3.971530   11.274613    5.974515      0.00      
14.0100


*     2    2   _QM_       4.861530   11.734613    6.124515      0.00       
2.0140     #deuteated     3    2   _QM_       3.401530   12.004613    
5.574515      0.00       2.0140     4    2   _QM_       3.581530   
11.074613    6.884515      0.00       2.0140*
     5    3   _QM_       4.211530   10.104613    5.124515      0.00      
12.0100
     6    4   _QM_       3.481530    9.344613    5.394515      0.00       
1.0080
     7    5   _QM_       4.131530   10.454613    3.634515      0.00      
12.0100
     8    6   _QM_       3.211530   10.964613    3.384515      0.00       
1.0080
     9    6   _QM_       4.921530   11.134613    3.324515      0.00       
1.0080
    10    6   _QM_       4.291530    9.514613    3.104515      0.00       
1.0080
    11    7   _QM_       5.551530    9.434613    5.384515      0.00      
12.0100
    12    8   _QM_       6.581530   10.014613    5.734515      0.00      
16.0000
    13    9   _QM_       5.511530    8.094613    5.304515      0.00      
14.0100
    14   10   _QM_       4.621530    7.744613    4.984515      0.00       
2.0140
    15   11   _QM_       6.681530    7.254613    5.444515      0.00      
12.0100
    16   12   _QM_       7.171530    7.674613    6.314515      0.00       
1.0080
    17   13   _QM_       6.221530    5.884613    5.954515      0.00      
12.0100
    18   14   _QM_       5.681530    6.034613    6.884515      0.00       
1.0080
    19   14   _QM_       5.581530    5.364613    5.244515      0.00       
1.0080
    20   15   _QM_       7.381530    4.954613    6.324515      0.00      
12.0100
    21   16   _QM_       8.111530    5.544613    6.874515      0.00       
1.0080
    22   17   _QM_       8.081530    4.224613    5.174515      0.00      
12.0100
    23   18   _QM_       8.691530    4.984613    4.684515      0.00       
1.0080
    24   18   _QM_       8.751530    3.474613    5.574515      0.00       
1.0080
    25   18   _QM_       7.401530    3.834613    4.414515      0.00       
1.0080
    26   17   _QM_       6.701530    3.804613    7.064515      0.00      
12.0100
    27   18   _QM_       7.421530    3.014613    7.294515      0.00       
1.0080
    28   18   _QM_       6.231530    4.094613    7.994515      0.00       
1.0080
    29   18   _QM_       5.891530    3.394613    6.454515      0.00       
1.0080
    30   19   _QM_       7.661530    7.274613    4.284515      0.00      
12.0100
    31   20   _QM_       8.841530    7.664613    4.474515      0.00      
16.0000

 
 MODULE QM/MM first QM, then MM (0 charges):  ATOMIC COORDINATES IN angstrom

  Atom  Kind  Element       X           Y           Z          Z(eff)       
Mass

       1     1 H    1    4.861530   11.734613    6.124515      1.00       
1.0079  # 4 H's were deuteraated but here it does not look like that
       2     1 H    1    3.401530   12.004613    5.574515      1.00       
1.0079
       3     1 H    1    3.581530   11.074613    6.884515      1.00       
1.0079
       4     1 H    1    3.481530    9.344613    5.394515      1.00       
1.0079
       5     1 H    1    3.211530   10.964613    3.384515      1.00       
1.0079
       6     1 H    1    4.921530   11.134613    3.324515      1.00       
1.0079
       7     1 H    1    4.291530    9.514613    3.104515      1.00       
1.0079
       8     1 H    1    4.621530    7.744613    4.984515      1.00       
1.0079
       9     1 H    1    7.171530    7.674613    6.314515      1.00       
1.0079
      10     1 H    1    5.681530    6.034613    6.884515      1.00       
1.0079
      11     1 H    1    5.581530    5.364613    5.244515      1.00       
1.0079
      12     1 H    1    8.111530    5.544613    6.874515      1.00       
1.0079
      13     1 H    1    8.691530    4.984613    4.684515      1.00       
1.0079
      14     1 H    1    8.751530    3.474613    5.574515      1.00       
1.0079
      15     1 H    1    7.401530    3.834613    4.414515      1.00       
1.0079
      16     1 H    1    7.421530    3.014613    7.294515      1.00       
1.0079
      17     1 H    1    6.231530    4.094613    7.994515      1.00       
1.0079
      18     1 H    1    5.891530    3.394613    6.454515      1.00       
1.0079
      19     2 C    6    4.211530   10.104613    5.124515      4.00      
12.0107
      20     2 C    6    4.131530   10.454613    3.634515      4.00      
12.0107
      21     2 C    6    5.551530    9.434613    5.384515      4.00      
12.0107
      22     2 C    6    6.681530    7.254613    5.444515      4.00      
12.0107
      23     2 C    6    6.221530    5.884613    5.954515      4.00      
12.0107
      24     2 C    6    7.381530    4.954613    6.324515      4.00      
12.0107
      25     2 C    6    8.081530    4.224613    5.174515      4.00      
12.0107
      26     2 C    6    6.701530    3.804613    7.064515      4.00      
12.0107
      27     2 C    6    7.661530    7.274613    4.284515      4.00      
12.0107
      28     3 O    8    6.581530   10.014613    5.734515      6.00      
15.9994
      29     3 O    8    8.841530    7.664613    4.474515      6.00      
15.9994
      30     3 O    8    7.201530    6.854613    3.204515      6.00      
15.9994
      31     4 N    7    3.971530   11.274613    5.974515      5.00      
14.0067
      32     4 N    7    5.511530    8.094613    5.304515      5.00      
14.0067


I have also tried to read in coorinates using &COORD section and label D 
for deuterated atoms (with corresponding kind section the input)  but there 
is no change in output.

As QM atoms are defined using MM indexes I was wondering does CP2K uses 
same mass as defined in the forcefield ?


How I can solve this technical issue?  Thanks in advance. 

I have attached the input and output file and basic working folder which 
contains all the required files to run the simulation. 
------------------------------------------------------------------
CP2K version 4.1
SVN source code revision svn:17462
cp2kflags: libint fftw3 libxc elpa3 parallel mpi3 scalapack
------------------------------------------------------------------



Best,
Irtaza




On Friday, November 28, 2008 at 9:45:54 PM UTC+1, Teo wrote:
>
> here's the way to fix this problem: 
>
> &KI ND D 
>        BASIS_SET TZV2P-GTH 
>        POTENTIAL GTH-BLYP-q1 
>        MASS 2.0 
>        ELEMENT H 
> &END KIND 
>
> teo 
>
> On 28 Nov 2008, at 21:43, Eric Shamay wrote: 
>
> > 
> > Here's the error I receive when trying the following: 
> > 
> >  ***  Unknown element for KIND <D>. This problem can be fixed 
> > specifying  *** 
> >  *** properly elements in PDB or specifying a KIND section or getting 
> > in  *** 
> >  *** touch with one of  the 
> > developers!                                   *** 
> > 
> > 
> > My KIND section is as follows: 
> > 
> >     &KIND H 
> >       BASIS_SET TZV2P-GTH 
> >       POTENTIAL GTH-BLYP-q1 
> >     &END KIND 
> >     &KIND D 
> >       BASIS_SET TZV2P-GTH 
> >       POTENTIAL GTH-BLYP-q1 
> >       MASS 2.0 
> >     &END KIND 
> >     &KIND O 
> >       BASIS_SET TZV2P-GTH 
> >       POTENTIAL GTH-BLYP-q6 
> >     &END KIND 
> >     &KIND N 
> >       BASIS_SET TZV2P-GTH 
> >       POTENTIAL GTH-BLYP-q5 
> >     &END KIND 
> > 
> > 
> > It's the error I received when trying that out before, but forgot what 
> > the problem was. Any insight on this? 
> > 
> > ~Eric 
> > 
> > 
> > 
> > On Nov 21, 2:52 pm, Laino Teodoro <teodor... at gmail.com> wrote: 
> >> Ciao Erick, 
> >> 
> >> sure it is possible. Please, follow this pseudo-input.. 
> >> 
> >> &COORD 
> >>    D  x y z 
> >>    D  x y z 
> >>    O  x y z 
> >>    H x y z 
> >>    H x y z 
> >>    O x y z 
> >> &END 
> >> 
> >> &KIND H 
> >>     BASIS_SET .. 
> >>     POTENTIAL .. 
> >> &END 
> >> 
> >> &KIND D 
> >>     BASIS_SET .. 
> >>     POTENTIAL .. 
> >>     MASS 2.0 
> >> &END 
> >> 
> >> ...etc.. 
> >> 
> >> ciao, 
> >> Teo 
> >> 
> >> On 21 Nov 2008, at 23:46, Eric Shamay wrote: 
> >> 
> >>> Does anyone know of how I would specify this in my input file for 
> >>> cp2k? Is this possible to do? 
> > > 
>
>
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