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Topic: Structure for PFBr4 and tell the point group  (Read 9853 times)

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chemdumb

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Structure for PFBr4 and tell the point group
« on: March 07, 2005, 03:17:20 AM »

My question is:

Predict the structure for PFBr4 and tell what the point group is?

I believe the structure is trigonal bipyramidal but do not know the point group.

Can someone please *delete me*!!!!

Thanks
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Offline Mitch

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Re:Structure for PFBr4 and tell the point group
« Reply #1 on: March 07, 2005, 03:23:11 AM »
How many rotations can you do?
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chemdumb

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Re:Structure for PFBr4 and tell the point group
« Reply #2 on: March 07, 2005, 03:31:03 AM »

It just states to predict the structure for PFBr4 and tell the point group?

rotations = no limit I guess.

I thought it was tbp with Cs point group, but I can't be for sure.

Any Ideas?
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Offline Mitch

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Re:Structure for PFBr4 and tell the point group
« Reply #3 on: March 07, 2005, 03:41:27 AM »
Hmmm, If you didn't understand my question then you actually need to read your Inorganic book. It should have a section on point groups. We're here to help if something doesn't make sense, but it sounds like your lacking some fundamentals.
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chemdumb

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Re:Structure for PFBr4 and tell the point group
« Reply #4 on: March 07, 2005, 03:54:24 AM »

two fold rotational axis.
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Offline Mitch

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Re:Structure for PFBr4 and tell the point group
« Reply #5 on: March 07, 2005, 04:04:31 AM »
on the principle axis?
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chemdumb

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Re:Structure for PFBr4 and tell the point group
« Reply #6 on: March 07, 2005, 04:07:22 AM »
Yes Sir.
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Offline Mitch

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Re:Structure for PFBr4 and tell the point group
« Reply #7 on: March 07, 2005, 04:20:35 AM »
Is the F equitorial or axial?
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chemdumb

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Re:Structure for PFBr4 and tell the point group
« Reply #8 on: March 07, 2005, 04:28:20 AM »
F is always in the axial position isn't it.
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