ERROR: Unexpected end of molecule file

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Hi all!

I am trying to eventually simulate nitrogen molecules impinging on a substrate using reax potential. For now, I am trying to make the data file for nitrogen molecule and I wrote a simple input script just to read it. However, I keep getting errors.

  1. Does it matter if the mass is specified in the input file or in the molecule data file?

  2. If I read the substrate co-ordinates using the read_data command, the mass is specified there with atom-ID ‘1’. If I later use the molecule command, since it atom is nitrogen, do I specify the atom id as ‘2’ in the molecule file?

3)Since I am using reax potential, do I need to specify bonds in the molecule file?

  1. In the lammps documentation for molecule data file, this is given

Bonds section:

  • one line per bond
  • line syntax: ID type atom1 atom2
  • type = bond type (1-Nbondtype)
  • atom1,atom2 = IDs of atoms in bond
    here, does type mean 1 for single bond, 2 for double bond and 3 for triple bond?

I am attaching my data and in* file. I get the error ‘Unexpected end of molecule file’ right now. I hope someone would please let me know what I am missing.

Thanks!

in.sputter (300 Bytes)

nitrogen.dat (123 Bytes)