Addition of NaBH₄ to [(η⁵-Cp)Fe(η⁶-C₆H₆)]⁺ will give · ABC26IN0264
Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Oxidative Addition Reductive Elimination · Exam: CSIR NET 2017 · Marks: 2 · Difficulty: Easy
Addition of $\mathrm{NaBH_4}$ to $\mathrm{[(\eta^{5}\text{-}Cp)Fe(\eta^{6}\text{-}C_6H_6)]^{+}}$ will give
(a)$\mathrm{[(\eta^{5}\text{-}Cp)Fe(H)_2]}$
(b)$\mathrm{[(\eta^{5}\text{-}Cp)\,Fe(H)(\,\eta^{6}\text{-}C_6H_6)]}$
(c)$\mathrm{[(\eta^{5}\text{-}Cp)\,Fe(\eta^{6}\text{-}C_6H_6)]}$
(d)$\mathrm{[(\eta^{5}\text{-}Cp)\,Fe(\eta^{6}\text{-}C_6H_7)]}$
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
Hydride attacks the coordinated arene (exo), giving the neutral η⁵-cyclohexadienyl complex [CpFe(η⁵-C₆H₇)] (d).
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