The symmetry-allowed atomic transition among the following is · ABC26IN1075
Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Coordination Chemistry – General · Exam: CSIR NET DEC 2015 · Marks: 2 · Difficulty: Easy
The symmetry-allowed atomic transition among the following is
(a)$^{3}F \rightarrow {}^{1}D$
(b)$^{3}F \rightarrow {}^{3}D$
(c)$^{3}F \rightarrow {}^{1}P$
(d)$^{3}F \rightarrow {}^{3}P$
Answer
Answer: B ✓ checked by 4AB · confidence high
The source book printed no answer; this one was worked out and checked — see the explanation.
Explanation
Allowed: ΔS = 0 and ΔL = 0, ±1 (not 0↔0). ³F → ³D keeps the multiplicity and has ΔL = −1; ³F → ³P has ΔL = −2, and the singlet targets break ΔS = 0.
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