Choose the isoelectronic pair among the following: A. [V(CO)₆] B. [Cu(η⁵-C₅H₅)(CO)] C. [Co(CO)₄]⁻ D… · ABC26IN1455
Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: 18 Electron Rule · Exam: CSIR NET JUNE 2017 · Marks: 2 · Difficulty: Easy
Choose the isoelectronic pair among the following: \[ \begin{array}{ll} \text{A. } \left[\mathrm{V(CO)_6}\right] & \text{B. } \left[\mathrm{Cu}(\eta^{5}\text{-}\mathrm{C_5H_5})(\mathrm{CO})\right] \\ \text{C. } \left[\mathrm{Co(CO)_4}\right]^{-} & \text{D. } \left[\mathrm{IrCl(CO)(PPh_3)}\right] \end{array} \]
(a)A and B
(b)B and C
(c)C and D
(d)A and D
Answer
Answer: B ✓ checked by 4AB · confidence medium
Explanation
CpCu(CO) and [Co(CO)₄]⁻ are both 18-electron species (b).
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