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chem
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| Turbonium |
| What does the Lewis Dot Diagram for PBrF4 look like? (phosphorous bromine tetrafluoride - I think thats what it's called) |
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| drizzt81 |
| quote: | Originally posted by Turbonium
What does the Lewis Dot Diagram for PBrF4 look like? (phosphorous bromine tetrafluoride - I think thats what it's called) |
I assume P is main group 5, it MIGHT look like this:
code:
Br
\
F - P - F
F/ \F
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| Turbonium |
K that's what I figured. But is the molecule polar? All the bonds are polar (En difference greater than or equal to 0.4). But does the fact that the Br is different that the 4 fluorides make it a difference enough to make it polar? If all 5 were fluorides, it obviously wouln't be polar.
En of P = 2.19
En of F = 3.98
En of Br = 2.96 |
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| drizzt81 |
| quote: | Originally posted by Turbonium
K that's what I figured. But is the molecule polar? All the bonds are polar (En difference greater than or equal to 0.4). But does the fact that the Br is different that the 4 fluorides make it a difference enough to make it polar? If all 5 were fluorides, it obviously wouln't be polar.
En of P = 2.19
En of F = 3.98
En of Br = 2.96 |
i am NOT the authority on this, but i'd say it is. If you think about it:
You have this lonely Br atom on one end, which isn't all that EN, then these four MONSTERS of EN-ity on the other side, who pull like some crazy mofo's on those e-'s?
anyway, ask someone who knows their stuff, it's been 2 1/2 years for me.. i can tell you all about silicon crystals though.. if you care to know ;) |
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| blazed it |
gibberish.... LOL
god i hate chemistry |
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| Mako |
Yes it is polar, when thinking about polarity, think vectors.
Edit: sorry i didn't pay attention to the whole molecule :D. So yeah it will because, there are 4 fluorines (most electronegative F = 4.0) while bromine is less electronegative. The fluorines will pull electrons towards themselves from other atoms, making P and ultimately Br (which are both less electronegative) slightly more positive, giving a small charge separation. |
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| drizzt81 |
| quote: | Originally posted by Mako
Yes it is polar, when thinking about polarity, think vectors.
Edit: sorry i didn't pay attention to the whole molecule :D. So yeah it will because, there are 4 fluorines (most electronegative F = 4.0) while bromine is less electronegative. The fluorines will pull electrons towards themselves from other atoms, making P and ultimately Br (which are both less electronegative) slightly more positive, giving a small charge separation. |
but the other atoms are Fluorine, which is even more EN.
n/m ;) |
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| Mako |
| quote: | Originally posted by drizzt81
but the other atoms are Fluorine, which is even more EN.
n/m ;) |
err.. you didn't read my edit? :p |
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| Mako |
| quote: | Originally posted by Mako
err.. you didn't read my edit? :p |
ohh n/m lol! |
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| drizzt81 |
| quote: | Originally posted by Mako
ohh n/m lol! |
i gather you did not read mine ;P |
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| Mako |
| quote: | Originally posted by drizzt81
i gather you did not read mine ;P |
:whip: :toothless :whip: |
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| zarathustra |
| Looks polar to me, although Chem was a looooong time ago. |
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