hi i am new in siesta please help me
when i built my model in gaussview but when i use its coordinates in siesta the 
shape in xcrysden is very bad here is my fdf 


SystemName             Au     
SystemLabel            Au 
NumberOfSpecies        3       
NumberOfAtoms         12  

%block ChemicalSpeciesLabel
  1   6   C
 
 2   1   H
  3   79  Au
%endblock ChemicalSpeciesLabel

PAO.EnergyShift       20 meV
PAO.BasisSize         DZP
PAO.BasisType        split

%block LatticeVectors          
1.0  0.0  0.0
0.0  1.0  0.0
0.0  0.0  1.0
%endblock LatticeVectors

KgridCutoff          25. Ang

xc.functional         GGA          
xc.authors            PBE 

SpinPolarized         true

MeshCutoff          100. Ry 
MaxSCFIterations       40  
        
DM.MixingWeight       0.01           
DM.Tolerance          1.d-4   
DM.UseSaveDM          true
DM.NumberPulay         5

SolutionMethod        diagon        
ElectronicTemperature  25 meV 

WriteDM                true
WriteDMHistory         true
WriteBands            
 true

MD.TypeOfRun           cg           
MD.NumCGsteps           0 
MD.MaxForceTol         0.04 eV/Ang

ElectronicTemperature    300 K

AtomicCoordinatesFormat     Ang

%block AtomicCoordinatesAndAtomicSpecies
  0.00000000    1.20815655   -1.58295310   1
  0.00000000    0.00000000   -2.28046909   1
  0.00000000   -1.20815655   -1.58295310   1
  0.00000000   -1.20804331   -0.18780442   1
  0.00000000    1.20804331   -0.18780442   1
  0.00000000    2.16039127  
 -2.13285479   2
  0.00000000    0.00000000   -3.38012423   2
  0.00000000   -2.16039127   -2.13285479   2
  0.00000000   -2.16057293    0.36172582   2
  0.00000000    0.00000000    1.60923781   2
  0.00000000    2.16057293    0.36172582   2
  0.00000000    0.00000000    0.50947689   3
%endblock AtomicCoordinatesAndAtomicSpecies
save-hs T
     
                           should i use ArgusLab?thanks

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