What is the vsepr model for PCl3?

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What is the vsepr model for PCl3?

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Answer 1 · 2017-08-06T16:50:43

$Trigonal pyramidal$ $"Trigonal pyramidal"$

Explanation:

We gots $P C l_{3}$ $PCl_3$ , and around the central phosphorus atom there are $3 \times bonding electron pairs$ $3xx"bonding electron pairs"$ , the $P - C l$ $P-Cl$ bonds, and a $phosphorus-centred$ $"phosphorus-centred"$ lone pair.

To a first approximation, these electron pairs arrange themselves in a tetrahedron........with ideal bond angles of ${109.5}^{\circ}$ $109.5^@$ . But we describe molecular geometry on the basis of the geometry of the ATOMS, not on the electron pairs. The symmetry descends from tetrahedral to trigonal pyramidal with $∠ C l - P - C l$ $/_Cl-P-Cl$ angles of approx. $100 - 103^{\circ}$ $100-103^@$ due to the disproportionate influence of the phosphorus lone pair.

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What is the vsepr model for PCl3?

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