[Wien] unit cell

[mkhsabra at aec.org.sy]

Dear All Wien users;

I trying to calculate the band structure of Polyacetylene with P21/n space 
group. But I do not know the atomic positions in the unit cell. So, please if 
any one would like to help me.
Note : The polyacetylene would have the same unit cell as Diphyenelpolyenes.

Thank you very much.
Dr. M. K. Sabra

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