Q54 · CSIR-NET Chemistry, December 2016

Paper: CSIR-NET December 2016 · Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Molecular Orbital Ligand Field · Marks: 2 · Difficulty: Medium

The highest molecular orbitals for an excited electronic configuration of the oxygen molecule are $[1\pi_{g}]^{1}[3\sigma_{u}]^{1}$. A possible molecular term symbol for oxygen with this electronic configuration is
(a)$^{1}\pi$
(b)$^{3}\Sigma$
(c)$^{1}\Delta$
(d)$^{1}\Sigma$
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
πg¹σu¹ gives a Π state: ¹Π (a).

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