How many hybrid orbitals are present in the molecule PCl5?
Risposta:
There are no atomic hybrid orbitals in "#PCl"_5#.
Spiegazione:
A better question might be, "How many hybrid orbitals does a #"P"# atom use when it forms a molecule of #"PCl"_5#?
VSEPR theory predicts that #"PCl"_5# should have a trigonal bipyramidal structure, which corresponds to an #"sp"^3"d"# ibridazione.
(Adapted from SlidePlayer)
The #"P"# atomo ha cinque orbitali ibridi.
We usually show the #"P-Cl"# bond as being formed by the overlap of a phosphorus #"sp"^3"d"#orbital with a chlorine #"3p"# orbitale.
(Adapted from SlidePlayer)
However, once a #"P-Cl# bond has formed, the original atomic orbitals no longer exist.
They have become σ molecular orbitals.
Così, la #"PCl"_5# molecule has no hybridized atomic orbitals.