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Topic: Cu2O Unit Cell  (Read 794 times)

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Offline jgr

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Cu2O Unit Cell
« on: March 02, 2024, 09:28:37 PM »
Hi,

I was just wondering what shape the Cu+ ions (ignoring oxygen) form in the Cu2O lattice (image attached). I was thinking that it is Body-Centred Cubic however I'm not sure.

Thanks,

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Offline mjc123

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Re: Cu2O Unit Cell
« Reply #1 on: March 03, 2024, 01:58:43 PM »
Try drawing out a unit cell of simple cubic, BCC and FCC. See if you can find in any of them a tetrahedral arrangement of atoms such as you see for the Cu atoms in the Cu2O unit cell.
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Offline jgr

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Re: Cu2O Unit Cell
« Reply #2 on: March 04, 2024, 01:05:47 AM »
Hi, thanks for your reply.

I just tried drawing it out and it still seems to be BCC.
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Offline mjc123

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Re: Cu2O Unit Cell
« Reply #3 on: March 04, 2024, 05:08:52 PM »
Well, the O atoms in that unit cell are clearly BCC. Do you see a regular tetrahedron of O's anywhere?
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