ABC26PH1072 · Group Theory
Subject: Physical Chemistry · Chapter: Group Theory · Topic: Group Theory – General · Exam: NET DEC 2011 · Marks: 2 · Difficulty: Medium
For $\mathrm{H_2O}$ molecule, the electronic transition from the ground state to an excited state of $\mathrm{B_1}$ symmetry is | $\mathrm{C_{2v}}$ | E | $\mathrm{C_2}$ | $\sigma_v$ | $\sigma_v'$ |
|---|
| $\mathrm{A_1}$ | 1 | 1 | 1 | 1 | $z, z^2, x^2, y^2$ |
| $\mathrm{A_2}$ | 1 | 1 | -1 | -1 | xy |
| $\mathrm{B_1}$ | 1 | -1 | 1 | -1 | x,xz |
| $\mathrm{B_2}$ | 1 | -1 | -1 | 1 | y,yz |
(a)not allowed
(b)allowed with $\mathrm{x}$ polarization
(c)allowed with $\mathrm{y}$ polarization
(d)allowed with $\mathrm{z}$ polarization
Answer
Explanation
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