Complex [Cr(bipyridyl)₃]⁺³, shows red phosphorescence due to transition [CSIR-JUNE 2016] · ABC26IN0120
Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Coordination Chemistry – General · Exam: CSIR NET 2016 · Marks: 2 · Difficulty: Easy
Complex $[\mathrm{Cr}(\mathrm{bipyridyl})_3]^{+3}$, shows red phosphorescence due to transition [CSIR-JUNE 2016]
(a)$^{4}\mathrm{T}_{2\mathrm{g}} \leftarrow {}^{4}\mathrm{A}_{2\mathrm{g}}$
(b)$^{4}\mathrm{T}_{1\mathrm{g}} \leftarrow {}^{4}\mathrm{A}_{2\mathrm{g}}$
(c)$^{4}\mathrm{A}_{2\mathrm{g}} \leftarrow {}^{2}\mathrm{E}_{\mathrm{g}}$
(d)$^{2}\mathrm{E}_{\mathrm{g}} \leftarrow {}^{4}\mathrm{A}_{2\mathrm{g}}$
Answer
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