Problem: There are three possible structures for PCl2F3 with phosphorus as the central atom. Draw them and discuss how measurements of dipole moments could help distinguish among them.

🤓 Based on our data, we think this question is relevant for Professor Kulatilleke's class at BARUCH CUNY.

FREE Expert Solution

Step 1Phosphorus (EN = 2.1) is less electronegative than chlorine (EN = 3) and F (EN = 4) → P = central atom


Step 2Total valence e-


            Group             Valence Electrons

P          5A                   1 × 5 e5 e

Cl          7A                  2 × 7 e = 14 e

F         7A                    3 × 7 e21 e

Total:  40 valence e


Step 3Lewis structures



Step 4Dipole moments


Molecular geometry:

→ surrounded by 5 atoms, 0 lone pairs → AX5 or trigonal bipyramidal  

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Problem Details

There are three possible structures for PCl2F3 with phosphorus as the central atom. Draw them and discuss how measurements of dipole moments could help distinguish among them.

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Based on our data, we think this problem is relevant for Professor Kulatilleke's class at BARUCH CUNY.

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Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.