Lewis structure, hybridization and VSEPR

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SUMMARY

The discussion focuses on the molecular structures of POF2- and POF3, specifically analyzing hybridization, bond angles, and geometry. The P atom in both molecules is sp3-hybridized, resulting in a tetrahedral geometry with a bond angle of approximately 109.5 degrees. The total number of valence electrons for POF3 is 28, while the minimized formal charge on phosphorus is 0. However, the bonds between phosphorus and oxygen consist of a sigma bond only, not a pi bond, and the statements regarding formal charge and valence electrons differ between the two molecules.

PREREQUISITES
  • Understanding of Lewis structures
  • Knowledge of hybridization concepts
  • Familiarity with VSEPR theory
  • Basic principles of molecular geometry
NEXT STEPS
  • Study the principles of VSEPR theory in detail
  • Learn about hybridization types and their implications in molecular geometry
  • Explore the concept of formal charge and its calculation
  • Investigate the differences between sigma and pi bonds in molecular structures
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Chemistry students, educators, and professionals involved in molecular modeling and structural analysis will benefit from this discussion.

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Homework Statement


Consider the related molecules POF2-
and POF3. Choose all the following statements that are correct for both molecules.

Homework Equations


A) P atom is sp3-hybridised
B) The F-P-F bond angle will be approximately 109.5 degrees
C) Geometry around he P centre is tetrahedral
D) Number of valence electrons for the molecule is 28
E)The bonds between P and O are a sigma and pi bond
F)Minimised formal charge on P is 0.


The Attempt at a Solution


I have found the general structure of both molecules.
....O
....||
....P
.../..|..\
...F...F...F
POF3

...O
...|
...P:(lone pair)
..../...\
...F...F
POF2-

I know D and F are wrong answers. I think the other 4 are correct. Help please

Thanks.
 
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It’s should be pointed out for clarity that D and F are true for POF3, but not for POF2-.
 
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