[DFTB-Plus-User] How to generate "born.out" file?

[Ankur Gupta]

Hello,

I would like to compute the IR spectrum of a molecular crystal structure;
therefore, I am trying to generate the "born.out" file. However, the DFTB+
code is only generating the "hessian.out" file. My input file is as follows,

Geometry = GenFormat {
 <<<"geo_end_final.gen"
}

Driver = SecondDerivatives {
}

Options = {
  TimingVerbosity = -1
#  WriteAutotestTag = Yes
}

#Parallel = {
#  UseOmpThreads = Yes
#}

ParserOptions = {
  ParserVersion = 3
}

Hamiltonian = xTB {
  Method = "GFN2-xTB"
  SCC = Yes
  SCCTolerance = 1e-8
  MaxSCCIterations = 250
  Mixer = Broyden {
    MixingParameter = 0.3
   }
  KPointsAndWeights = SupercellFolding {
   1  0  0
   0  3  0
   0  0  2
   0  0  0.5
  }
}

I would greatly appreciate any help on this matter.

Best,
Ankur
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