change the sign a molecules in Cv group. which of the following orbitals will e

Question

change the sign a molecules in Cv group. which of the following orbitals will e Both P, and P, under a Cj operation? (e) P, only (a) P, only (b) P, only For a molecules in Csv group, which of the following sign under a Ca operation? (a) Por Py (one of them) (b) Both P, and Py (b) P, onl (d) All the P orbitals 2. Problems: (1) The Cov character table is shown as below: olaitcd KX Symmetry Species Ai h=4 Ov xy zx yyz Bi 1· Og molecule (bent structure) belongs to C2v group. Use the character table to determine whether the following orbitals from two O atoms can overlap to form bonding. (a) P Py orbitals. (b) P-P, orbitals, (10 points)

Explanation / Answer

5. D) both Px and Py

6. B) Pz only

2.problem

Here if overlap occers then the multiplication of the orbitals should give A1 always

For Px-Py orbital Px × Py not equal to A1 .so no bonding or no overlap

For Px and Px it gives A1 so overlap occurs

Similarly for Py-Py and Pz-Pz overlap occurs

Multiplication means the multiplication of the value from the character table i.e. nonreducible representations

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