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                                     Bylaska  Forum:Admin, Forum:Mod, NWChemDeveloper, bureaucrat, sysop
                                    
                                  
 
                                 
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                 Gets Around 
                
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		                        | 9:38:39 AM PST - Wed, Jan 16th 2013  | 
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		                        You can also go back and forth between neb and string calculations, e.g. 
 
This run never really converges well because the two H's that are doing all the real work pop off to form H2 and do a little dance and then come back to the CH2 group they left behind. Optimizing the details of the little dance is about as likely has finding blinker fluid at the auto parts store 
 
Note that this sends H1 right through the Carbon - atom avoidance code must work 
 
 
echo 
start ch4_neb 
 
permanent_dir ./permh 
scratch_dir   ./permh 
 
geometry nocenter 
 symmetry c1 
 
C     0.000000     0.000000     0.000000 
H     0.000000     0.000000     1.089000 
H     1.026719     0.000000    -0.363000 
H    -0.513360    -0.889165    -0.363000 
H    -0.513360     0.889165    -0.363000 
end 
 
geometry endgeom nocenter 
 symmetry c1 
 
C     0.000000     0.000000     0.000000 
H     0.000000     0.000000    -1.089000 
H     1.026719     0.000000     0.363000 
H    -0.513360    -0.889165     0.363000 
H    -0.513360     0.889165     0.363000 
end 
 
basis 
 * library STO-3G 
 
end 
 
scf 
  thresh 1.0d-10 
  maxiter 5001 
 
end 
 
neb 
  impose 
  nhist 10 
  nbeads 10 
  maxiter 100 
  stepsize 0.10d0 
  kbeads 0.1 
 
end 
task scf neb ignore 
 
neb 
  kbeads 1.0 
  nbeads 20 
 
end 
task scf neb ignore 
 
string 
 nbeads 20 
 nhist 10 
 maxiter 100 
 stepsize 1.0 
 freeze1 .true. 
 freezeN .true. 
 interpol 1 
 
end 
 
task scf string ignore
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		Edited On 2:32:42 PM PST - Wed, Jan 16th 2013 by Bert
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