dft calculation yet output with no exchange-correlation energy?!


Clicked A Few Times
The following in the input file,

echo

start HZ

title "HZ with fractional nuclear charge by nwchem"

geometry units angstroms
Bq_H 0.0000 0.00000000 0.00000000 charge 1.0000
H 0.7500 0.00000000 0.00000000
end

charge     0.0000

basis
Bq_H library H 6-311g**
H library 6-311g**
end

dft
mulliken
print "mulliken ao"
xc xpbe96 cpbe96
end

task dft


Here is the converged energy output:

        Total DFT energy =       -0.540227841742
One electron energy = -2.311763270508
Coulomb energy = 1.065965763433
Exchange-Corr. energy = 0.000000000000
Nuclear repulsion energy = 0.705569665333

Numeric. integr. density = 0.000000000000

Meanwhile, the total energy does not seem to be quite right. Total energy should be < -2 Ryd, about - 1 Hartree. But here it only reports -0.54Har. Is this the case?

Forum Regular
Hi,

In this case renaming Bq_H to

  BqH

really helps...

Huub

Clicked A Few Times
Thanks, I just tried it, but no difference, any further suggestions?

Forum Vet
rename bqH to bq

echo

start HZ

title "HZ with fractional nuclear charge by nwchem"

geometry units angstroms
   Bq       0.0000      0.00000000    0.00000000      charge     1.0000
   H        0.7500      0.00000000    0.00000000
end

charge     0.0000

basis
  H    library 6-311g**
end

dft
  mulliken
  print "mulliken ao"
  xc xpbe96 cpbe96
end

task dft

Clicked A Few Times
change BqH to Bq does give xc energy, but atom type information missing
Thank you, Edoapra. Now xc energy is printed, and total energy seems to be alright as well. But the atom type information is missing, say, it does not know what basis set is used for Z, and in the summary on Mullekin charge, no site projected charge information is available. An input example is given below,

echo

start HZ

title "HZ with fractional nuclear charge by nwchem"

geometry units angstroms
Bq 0.0000 0.00000000 0.00000000 charge 0.9900
H 0.7500 0.00000000 0.00000000
end

charge    -0.0100

basis
H library 6-311g**
end

dft
mulliken
print "mulliken ao"
xc xpbe96 cpbe96
end

task dft


Any further suggestions?


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