Hi,

     I am trying to convert the following SMILES string (to xyz 
coordinates (with explicit hydrogens).

[S@]1(C)[Au][S@]([Au][S@](C)[Au][S@]([Au]1)C)C

    I get the xyz coordinates, but I also get a warning message: 
  WARNING: too small "scale" at Newton2NumLineSearch

I need to grow the four alkyl chains of the structure. When I submit the 
SMILES structure for the same structure, but with ethyls instead of 
methyls, this same warning message is seemingly, endlessly repeated I 
eventually need to have four decyl chains emanating from the ring 
structure. How can I fix/avoid this warning-message problem?

Thanks,
Matthew

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