Author Topic: Reg. Graphyne and related structure  (Read 10669 times)

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Offline Rajib

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Reg. Graphyne and related structure
« on: January 31, 2012, 14:01 »
Dear ATK experts,

Would anyone please let me know to make model of Graphyne and related structures within the framework of ATK11.8.2. Please have a look the following links:

http://dx.doi.org/10.1063/1.3583507
http://dx.doi.org/10.1021/jp206751m
http://prb.aps.org/abstract/PRB/v62/i16/p11146_1

Please can someone provide me some scripts about these structures.

Many thanks

Rajib

Offline Anders Blom

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Re: Reg. Graphyne and related structure
« Reply #1 on: January 31, 2012, 17:30 »
The first link didn't work, but based on the other 2 this should be fairly straightforward to build using VNL.

I would take the benzene molecule from the Database (Molecules) and then in the Builder add some more C atoms to get the structure of the unit cell you want (as a molecule), then inscribe this in a hexagonal cell and adjust perhaps the positions so it sits nicely inside the cell.

Offline Anders Blom

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Re: Reg. Graphyne and related structure
« Reply #2 on: January 31, 2012, 17:39 »
Here's what I made in 10 minutes. Single layer graphyne, with "q" (PRB paper notation) = 1.4 Å which is the same C-C bond lenth as used in the benzene molecule. I used the optimized lattice constant also from the PRB 6.86 Å for the hexagonal cell. A 30 degree rotate was necessary to get the benzene to align properly with the axes as well.
« Last Edit: January 31, 2012, 17:41 by Anders Blom »

Offline Rajib

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Re: Reg. Graphyne and related structure
« Reply #3 on: January 31, 2012, 19:52 »
Dr. Anders - Many thanks for your help